ADV7850 [ADI]
Complete AV Front End; 完整的AV前端型号: | ADV7850 |
厂家: | ADI |
描述: | Complete AV Front End |
文件: | 总32页 (文件大小:505K) |
中文: | 中文翻译 | 下载: | 下载PDF数据表文档文件 |
Complete AV Front End
ADV7850
Data Sheet
Audio codec
FEATURES
24-bit, 48 kHz stereo codec
5-channel stereo analog input mux with a stereo output
Main features
4-port HDMI Xpressview receiver
170 MHz video and graphics digitizer
Complete 3D comb video decoder
Stereo audio codec
High speed serial output (TMDS)
HDMI support
General
Internal EDID RAM for HDMI and graphics
Dual STDI (standard identification) function support for
dual input detection
Simultaneous analog processing and HDMI monitoring for
fast input switching
3D TV support
Audio return channel (ARC)
APPLICATIONS
Extended colorimetry, including sYCC601, Adobe RGB,
Adobe YCC 601, and xvYCC extended gamut color
4:1 HDMI 297 MHz receiver
HDTVs, set-top boxes, AV receivers, projectors, video matrix
switchers
Fast switching of HDMI ports (Xpressview)
3D TV video format support
FUNCTIONAL BLOCK DIAGRAM
DDR2 SDRAM
HDCP 1.4 support with internal HDCP keys
Adaptive HDMI equalizer
CVBS × 2/YC
SCART RGB
+ CVBS
CVBS
SCART G
SCART B
SCART R
Full HDCP repeater support
ADC
ADC
ADC
ADC
SDP
CVBS
3D COMB
YC
HS/VS/DE
S/PDIF interface for 4 single-mode ARC outputs
Up to 36-bit Deep Color support
Complete HDMI audio support
CVBS
YC
CLK
DATA
SCART
YPbPr
Audio extraction available
HDMI
GRAPHICS
RGB
Support for up to 16 VSIs (including THX Media Director™)
High speed serial output (TMDS 297 MHz)
Full transmitter support including encryption
Can operate in a transceiver configuration
Audio insertion available
CP
YPbPr
525p/625p
720p/1080i
1080p/
Y/G
Pb/B
Pb/R
HS/VS/DE
AUDIO L/R
5
CLK
DATA
UXGA
RGB
AUDIO L/R
ADC
DAC
2
Video and graphics digitizer
AUDIO L/R
HP L/R
I S INTERFACE
Digitizes RGB graphics up to 1600 × 1200 at 60 Hz (UXGA)
SD, ED, and HD TV support up to 1080p at 60 Hz
Low refresh rates (24 Hz/25 Hz/30 Hz) support for
720p/1080p
13-channel analog video input channels with 2 outputs
3D comb video decoder
Full NTSC/PAL/SECAM color standards support
Adaptive 3D comb filter video decoder
Advanced time-base correction (TBC) with frame
synchronization for SD formats
36
HDMI 1
HDMI 2
HDMI 3
HDMI 4
TMDS
DDC
2
I S
AUDIO
4
OUTPUT
5
S/PDIF
DSD/DST
HBR
DEEP
TMDS
DDC
COLOR
HDMI Rx
MCLK
TMDS
DDC
MCLK
SCLK
TMDS
DDC
FAST
SWITCH
SCLK
HDCP
KEYS
ARC
4
S/PDIF
ARC
5V HDMI + VGA
5
5V EDID
REG
SPI
ADV7850
INTERFACE
Complete SCART support
Advanced VBI data slicer
EDID EPROM
IF compensation filters
Figure 1.
Rev. 0
Information furnished by Analog Devices is believed to be accurate and reliable. However, no
responsibility is assumed by Analog Devices for its use, nor for any infringements of patents or other
rights of third parties that may result from its use. Specifications subject to change without notice. No
license is granted by implication or otherwise under any patent or patent rights of Analog Devices.
Trademarks and registeredtrademarks arethe property of their respective owners.
One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.
Tel: 781.329.4700
Fax: 781.461.3113
www.analog.com
©2012 Analog Devices, Inc. All rights reserved.
ADV7850
Data Sheet
TABLE OF CONTENTS
Features .............................................................................................. 1
Power-Up Sequence ................................................................... 24
Power-Down Sequence.............................................................. 24
Power Supply requirements ...................................................... 24
Functional Overview...................................................................... 25
HDMI Receiver........................................................................... 25
Analog Front End....................................................................... 25
Standard Definition Processor ................................................. 26
Component Processor ............................................................... 26
VBI Data Processor (VDP)....................................................... 27
TMDS Output............................................................................. 27
External Memory Requirements.............................................. 27
Other Features ............................................................................ 27
Audio Overview.............................................................................. 28
Analog Audio MUX Functionality .......................................... 28
Audio Codec Functionality....................................................... 28
Register Map Architecture ............................................................ 29
Outline Dimensions ....................................................................... 30
Ordering Guide .......................................................................... 30
Applications....................................................................................... 1
Functional Block Diagram .............................................................. 1
Revision History ............................................................................... 2
General Description ......................................................................... 3
Detailed Functional Block Diagram .............................................. 4
Specifications..................................................................................... 5
Electrical Characteristics............................................................. 5
Power Specifications .................................................................... 6
Analog Specifications................................................................... 7
Video Specifications..................................................................... 9
Timing Characteristics .............................................................. 10
Timing Diagrams........................................................................ 11
Absolute Maximum Ratings.......................................................... 13
Package Thermal Performance................................................. 13
ESD Caution................................................................................ 13
Pin Configuration and Function Descriptions........................... 14
Power Supply Sequencing.............................................................. 24
REVISION HISTORY
5/12—Revision 0: Initial Version
Rev. 0 | Page 2 of 32
Data Sheet
ADV7850
GENERAL DESCRIPTION
also includes an integrated equalizer that ensures robust opera-
tion of the interface with cable lengths up to 30 meters. The HDMI
receiver has advanced audio functionality, such as a mute flag,
that prevents audible extraneous noise in the audio output.
The ADV7850 is a high quality, single chip, multiformat video
decoder graphics digitizer with an integrated 4:1 multiplexed
HDMI® receiver.
This multiformat 3D comb filter decoder supports the conversion
of PAL, NTSC, and SECAM standards in the form of a composite
or an S-Video input signal into a HDMI output stream. SCART
and overlay functionality are enabled by the ability of the
ADV7850 to process CVBS and standard definition RGB signals
simultaneously.
In addition, the HDMI receiver incorporates internal EDID
support, which can be made available in full power, power-
down, and power-off modes. An internal regulator supplies
external EDID memory from the HDMI 5 V signal in power-
off mode.
The ADV7850 incorporates Xpressview™ fast switching on all
HDMI input ports. Using the Analog Devices, Inc., hardware-
based HDCP engine that minimizes software overhead,
Xpressview technology allows fast switching between any two
HDMI input ports in less than 1 second.
The ADV7850 contains one main component processor (CP)
that processes YPrPb and RGB component formats, including
RGB graphics. The ADV7850 can operate in quad HDMI and
analog input mode, thus allowing for fast switching between the
analog video inputs and HDMI.
The ADV7850 offers a flexible audio output port for the audio
data decoded from the HDMI stream. HDMI audio formats,
including super audio CD (SACD) via DSD, DST, and HBR are
supported.
The ADV7850 supports the decoding of a component RGB/
YPrPb video signal into a HDMI output stream. The support
for component video includes 525i, 625i, 525p, 625p, 720p,
1080i, 1080p, and 1250i standards, as well as many other
SMPTE and HD standards.
The ADV7850 also features the single mode audio return
channel (ARC) feature. ARC simplifies cabling by combining
upstream audio capability in a conventional HDMI cable.
The ADV7850 supports graphics digitization. The ADV7850 is
capable of digitizing RGB graphics signals from VGA to UXGA
rates and converting them into an HDMI output stream. Internal
EDID RAM is available for one graphics port.
The stereo audio ADC converts analog audio inputs and
provides the data to the back end via the HDMI interface. The
stereo audio DAC receives I2
S data from the back end and
The ADV7850 incorporates a quad input HDMI-compatible
receiver that supports all HDTV formats up to 3D 1080p 60 Hz
and 2160P 24 Hz.
converts it to analog audio output. The audio output is available
as both high impedance and a driven output, which is suitable
for driving headphones directly.
The ADV7850 supports full HDCP decryption with internal
key storage. The ADV7850 features HDCP authentication on all
ports simultaneously. The feature allows fast switching between
HDMI ports. Sync measurements and status monitoring are
also available for all HDMI ports. Each HDMI port has dedi-
cated 5 V detect and hot plug assert pins. The HDMI receiver
Fabricated in an advanced CMOS process, the ADV7850 is
provided in a 19 mm × 19 mm, 425-ball, CSP_BGA, surface-
mount, RoHS-compliant package, and is specified over the
−20°C to +70°C temperature range.
Rev. 0 | Page 3 of 32
ADV7850
Data Sheet
DETAILED FUNCTIONAL BLOCK DIAGRAM
2
0 0 A 5 8 - 0 7 7
T E T R A R M F O T T P U U O O U A D I
R
T E T A R M F T O T P U U O O D E V I
E R L S T F I N O I T A M I C
A B M L E D R E A G M O R P
X
+ M U
I D E C O H D M C K + B L O
G I N H C I T W S T S A F
D E
Figure 2. Detailed Functional Block Diagram
Rev. 0 | Page 4 of 32
Data Sheet
ADV7850
SPECIFICATIONS
AVDD = 1.8 V 5%, VDD to GND = 1.8 V 5%, PVDD = 1.8 V 5%, TX_AVDD = 1.8 V 5%, TX_PVDD = 1.8 V 5%, SAVDD =
1.8 V 5%, SDVDD = 1.8 V 5%, CVDD = 1.8 V 5%, DVDDIO = 3.3 V 5%, TX_VDD33 = 3.3 V 5%, TVDD = 3.3 V 5%,
AC_AVDD = 3.3 V 5%. TMIN to TMAX = −20°C to +70°C, unless otherwise noted.
ELECTRICAL CHARACTERISTICS
Table 1.
Parameter
Symbol
Test Conditions/Comments
Min
Typ
Max
Unit
STATIC PERFORMANCE
Resolution (Each ADC)
Integral Nonlinearity
N
INL
12
Bits
LSB
LSB
LSB
LSB
LSB
LSB
LSB
LSB
LSB
LSB
27 MHz (at a 12-bit level)
54 MHz (at a 12-bit level)
74.25 MHz (at a 12-bit level)
108 MHz (at a 11-bit level)
170 MHz (at a 9-bit level)
27 MHz (at a 12-bit level)
54 MHz (at a 12-bit level)
75 MHz (at a 12-bit level)
108 MHz (at a 11-bit level)
170 MHz (at a 9-bit level)
−3.0 to +8.0
−3.0 to +8.0
−4.0 to +7.0
−3.5 to +8.0
−0.7 to +1.8
−0.7 to +0.8
−0.7 to +0.8
−0.7 to +0.8
−0.7 to +0.8
−0.6 to +0.5
Differential Nonlinearity
DNL
DIGITAL INPUTS
Input High Voltage
Input Low Voltage
VIH
VIL
VIH
VIL
CIN
XTALN and XTALP pins
XTALN and XTALP pins
Other digital inputs
Other digital inputs
1.2
2
V
V
V
V
0.4
0.8
10
Input Capacitance
HDMI
pF
TMDS Differential Pin Capacitance
DIGITAL INPUTS (5 V TOLERANT)1
Input High Voltage
Input Low Voltage
Input Current
0.3
pF
VIH
VIL
IIN
3.0
V
V
µA
0.8
+82
−82
2.4
DIGITAL OUTPUTS
Output High Voltage
Output Low Voltage
High Impedance Leakage Current
VOH
VOL
ILEAK
V
V
µA
0.4
DDC_SCL, DDCA_SDA, DDCB_SCL,
DDCB_SDA, DDCC_SCL,
30
DDCC_SDA, DDCD_SCL,
DDCD_SDA, VGA_SCL, VGA_SDA,
SPDIF_IN, SHARED_EDID
ILEAK
RXA_5V, RXB_5V, RXC_5V, RXD_5V
and VGA_5V
All other digital pins
20
10
µA
ILEAK
COUT
µA
pF
Output Capacitance
20
1 The following pins are 5 V tolerant: HS_IN1/TRI7, HS_IN2/TRI5, VS_IN1/TRI8, VS_IN2/TRI6, DDCA_SCL, DDCA_SDA, DDCB_SCL, DDCB_SDA, DDCC_SCL, DDCC_SDA,
DDCD_SCL, DDCD_SDA, VGA_SCL, VGA_SDA, TX_DDC_SCL, TX_DDC_SDA, RXA_5V, RXB_5V, RXC_5V, RXD_5V, and VGA_5V.
Rev. 0 | Page 5 of 32
ADV7850
Data Sheet
POWER SPECIFICATIONS
Table 2.
Parameter
Symbol
Min
Typ
Max
Unit
Test Conditions/Comments
POWER REQUIREMENTS
Digital Core Power Supply
Digital I/O Power Supply
Memory Interface Analog Power Supply
Memory Interface Digital Power Supply
DPLL Power Supply
Video Analog Power Supply
Terminator Power Supply
Comparator Power Supply
Audio Block Supply
HDMI Tx Analog Power Supply
HDMI Tx Digital Power Supply
HDMI Tx PLL Regulator Power Supply
CURRENT CONSUMPTION1, 2, 3
Digital Core Supply Current
Digital I/O Supply Current
DPLL Supply Current
Video Analog Supply Current
Memory Interface Analog Power Supply
Memory Interface Digital Power Supply
Comparator Supply Current
Audio Block Supply Current
HDMI Tx Analog Supply Current
HDMI Tx Digital Supply Current
HDMI Tx PLL Regulator Supply Current
Terminator Supply Current4
VDD
1.75
3.14
1.71
1.71
1.71
1.71
3.14
1.71
3.14
1.71
1.71
3.14
1.8
3.3
1.8
1.8
1.8
1.8
3.3
1.8
3.3
1.8
1.8
3.3
1.85
3.46
1.89
1.89
1.89
1.89
3.46
1.89
3.46
1.89
1.89
3.46
V
V
V
V
V
V
V
V
V
V
V
V
DVDDIO
SAVDD
SDVDD
PVDD
AVDD
TVDD
CVDD
AC_AVDD
TX_AVDD
TX_PVDD
TX_VDD33
IVDD
IDVDDIO
IPVDD
400
3
36
270
4
15
300
80
20
43
2
80
280
1
1.5
0.5
0.5
0.5
0.5
0.5
0.5
1
2.5
0.5
0.5
25
440
4
45
290
5
18
350
84
25
50
5
mA
mA
mA
mA
mA
mA
mA
mA
mA
mA
mA
mA
mA
mA
mA
mA
mA
mA
mA
mA
mA
mA
mA
mA
mA
ms
IAVDD
ISAVDD
ISDVDD
ICVDD
IAC_AVDD
ITX_AVDD
ITX_PVDD
ITX_VDD33
ITVDD
85
290
One port connected
Four ports connected
Power-Down Currents5
IVDD
IDVDDIO
IPVDD
IAVDD
ISAVDD
ISDVDD
ITVDD
ICVDD
IAC_AVDD
ITX_AVDD
ITX_PVDD
ITX_VDD33
tPWRUP
Power-Up Time
1 All maximum current values are guaranteed by characterization to assist in power supply design.
2 Typical current consumption values are recorded with nominal voltage supply levels, SMPTE bar video pattern, and at room temperature.
3 Maximum current consumption values are recorded with maximum rated voltage supply levels, MoireX video pattern, and at maximum rated temperature.
4 Termination power supply includes TVDD current consumed off chip.
5 Power-down mode entered by setting the I2C Bit POWER_DOWN high.
Rev. 0 | Page 6 of 32
Data Sheet
ADV7850
ANALOG SPECIFICATIONS
Table 3.
Parameter
Test Conditions/Comments
Min
Typ
Max
Unit
CLAMP CIRCUITRY1
Input Impedance
Analog (AIN1 to AIN12)
ADC Midscale (CML)
ADC Full-Scale Level
ADC Zero-Scale Level
ADC Dynamic Range
Clamp Level (When Locked)
Clamps switched off
10
MΩ
0.91
V
V
V
V
V
V
V
V
V
V
V
V
mA
mA
μA
μA
CML + 0.55
CML − 0.55
1.1
CML − 0.12
CML
Component input, Y signal
Component input, Pr signal
Component input, Pb signal
PC RGB input (R, G, B signals)
CVBS input
SCART RGB input (R, G, B signals)
S-Video input (Y signal)
S-Video input (C signal)
SDP only
CML
CML − 0.12
CML − 0.205
CML − 0.205
CML − 0.205
CML
0.3
0.4
9
8
Large Clamp Source Current
Large Clamp Sink Current
Fine Clamp Source Current
Fine Clamp Sink Current
AUDIO ADC SECTION2
Number of Channels
SDP only
SDP only
SDP only
Stereo pair
1
50
24
Channel
µA rms
Bits
Full-Scale Input Level
Resolution
Dynamic Range (Stereo Channel)
A-Weighted
−60 dBFS with respect to full-scale
analog input
−3 dBFS with respect to full-scale
analog input
Left- and right-channel gain
mismatch
90
dB
dB
dB
Total Harmonic Distortion + Noise (Stereo Channel)
Gain Mismatch
−85
0.2
Crosstalk (Left to Right, Right to Left)
Gain Error
Power Supply Rejection
AUDIO ADC DIGITAL DECIMATOR FILTER CHARACTERISTICS2
Pass Band
Pass-Band Ripple
Stop Band
Stop-Band Attenuation
Group Delay
−90
−1.1
−89
dB
dB
dB
Input signal = 2.8 V rms
1 kHz, 300 mV p-p signal at AVDD
At 48 kHz, guaranteed by design
22.5
0.0002
26.5
100
1040
kHz
dB
kHz
dB
µs
AUDIO DAC SECTION2
Number of Auxiliary Output Channels
Resolution
Full-Scale Analog Output
Dynamic Range
Stereo pair
1
24
1.0
Channel
Bits
V rms
A-Weighted
−60 dBFS with respect to full-
scale code input
−3 dBFS with respect to full-scale
code input
93
dB
dB
Total Harmonic Distortion + Noise
−89
Rev. 0 | Page 7 of 32
ADV7850
Data Sheet
Parameter
Test Conditions/Comments
Min
Typ
−104
0.1
Max
Unit
dB
dB
Crosstalk (Left to Right, Right to Left)
Interchannel Gain Mismatch
Left- and right-channel gain
mismatch
Gain Error
Power Supply Rejection
1 V rms output
1 kHz, 300 mV p-p signal at AVDD
At 48 kHz, guaranteed by design
0.525
−101
dB
dB
AUDIO DAC DIGITAL INTERPOLATION FILTER
CHARACTERISTICS2
Pass Band
21.769
0.01
23.95
26.122
75
kHz
dB
kHz
kHz
dB
Pass-Band Ripple
Transition Band
Stop Band
Stop-Band Attenuation
Group Delay
HEADPHONE AMPLIFIER2
580
µs
Measured at headphone output
with 32 Ω load
Number of Channels
Dynamic Range
A-Weighted
Stereo pair
1
Channel
−60 dBFS with respect to full-
scale code input
−3 dBFS with respect to full-scale
code input
92
dB
dB
Total Harmonic Distortion + Noise
−86
Interchannel Gain Mismatch
Power Supply Rejection
ANALOG AUDIO MUX2
0.1
−82
dB
dB
1 kHz, 300 mV p-p signal at AVDD
Number of Input Channels
Number of Output Channels
Gain Mismatch Between Left and Right Channels
REFERENCE SECTION
Stereo pair
Stereo pair
5
1
5
Channel
Channel
%
Absolute Voltage VREF
1.5
V
1 Specified for external clamp capacitor of 100 nF.
2 Guaranteed by lab characterization.
Rev. 0 | Page 8 of 32
Data Sheet
ADV7850
VIDEO SPECIFICATIONS
Table 4.
Parameter
Symbol
Test Conditions/Comments
Min
Typ
Max
Unit
NONLINEAR SPECIFICATIONS1
Differential Phase
Differential Gain
Luma Nonlinearity
NOISE SPECIFICATIONS1
DP
DG
LNL
CVBS input (modulated five-step)
CVBS input (modulated five-step)
CVBS input (modulated five-step)
Measured at 27 MHz LLC
Luma ramp
0.5
0.6
0.9
Degrees
%
%
SNR Unweighted
SNR Unweighted
59
60
60
dB
dB
dB
Luma flat field
Analog Front-End Crosstalk
LOCK TIME SPECIFICATIONS (SDP)2
Horizontal Lock Range
Vertical Lock Range
Subcarrier Lock Range
Color Lock-In Time
5
%
Hz
kHz
Lines
%
40
70
fSC
0.8
60
Sync Depth Range
Color Burst Range
20
1
200
200
%
Vertical Lock Time
300
100
ms
Lines
Horizontal Lock Time
CHROMA SPECIFICATIONS (SDP)1
Chroma Amplitude Error
Chroma Phase Error
Chroma Luma Intermodulation
0.9
0.3
0.6
%
Degrees
%
1 Guaranteed by lab characterization.
2 Guaranteed by design.
Rev. 0 | Page 9 of 32
ADV7850
Data Sheet
TIMING CHARACTERISTICS
Data, SPI, and I2C Timing Characteristics
Table 5.
Parameter
Symbol Test Conditions/Comments
Min
Typ
Max
Unit
CLOCK AND CRYSTAL
Crystal Frequency
Crystal Frequency Stability
I2C PORT1
27
MHz
ppm
±±0
400
See Figure 3
SCL Frequency
kHz
ns
μs
ns
ns
ns
ns
ns
μs
SCL Minimum Pulse Width High
SCL Minimum Pulse Width Low
Start Condition Hold Time
Start Condition Setup Time
SDA Setup Time
SCL and SDA Rise Time
SCL and SDA Fall Time
Stop Condition Setup Time
RESET FEATURE
t1
t2
t3
t4
t±
t6
t7
t8
600
1.3
600
600
100
1000
300
0.6
±
Reset Pulse Width
ms
HDMI AUDIO I2S PORT, MASTER MODE
HA_SCLK Mark-Space Ratio
LRCLK2 Data Transition Time
See Figure 4
t1±:t16
t17
4±:±±
4±:±±
2
% duty cycle
ns
End of valid data to negative
HA_SCLK edge
LRCLK2 Data Transition Time
I2Sx3 Data Transition Time
I2Sx3 Data Transition Time
t18
t19
t20
Negative HA_SCLK edge to start of
valid data
End of valid data to negative
HA_SCLK edge
Negative HA_SCLK edge to start of
valid data
2
2
2
ns
ns
ns
AUDIO CODEC MASTER CLOCK
AC_MCLK Frequency Range
AC_MCLK Frequency
fMCLK
fMCLK
4.096
128 × fS
24.±76 MHz
Hz
SPI READ AND WRITE OPERATIONS1
See Figure ±, Figure 7, and Figure 8
SCLK Frequency
13.±
MHz
Master Mode
TTX_SCLK Falling Edge to
CS/TTX_MOSI Valid
t21, t22
3.0
4.1
ns
TTX_MISO Setup Time
TTX_MISO Hold Time
Slave Mode
t23
t24
1±.3
2.1
ns
ns
CS Falling Edge to TTX_SCLK
Rising Edge
TTX_SCLK Falling Edge to CS
Rising Edge
t2±, t26
t27, t28
4.0
4.0
ns
ns
TTX_MOSI Setup Time
TTX_MOSI Hold Time
TTX_SCLK Falling Edge to
CS/MOSI Valid
t29
t30
t31, t32
1.8
2.7
ns
ns
ns
7.3
1±.±
1 Guaranteed by design.
2 LRCLK is a signal accessible via HA_AP±.
3 I2Sx are signals accessible via Ball HA_AP1 to Ball HA_AP4.
Rev. 0 | Page 10 of 32
Data Sheet
ADV7850
TIMING DIAGRAMS
t3
t5
t3
SDA
t6
t1
SCL
t2
t7
t4
t8
Figure 3. I2C Timing
t15
HA_SCLK
t16
t17
LRCLK
t18
t19
I2Sx
LEFT-JUSTIFIED
MODE
MSB
MSB – 1
MSB
t20
t19
I2Sx
2
I S MODE
MSB – 1
t20
t19
I2Sx
RIGHT-JUSTIFIED
MODE
MSB
LSB
t20
NOTES
2
1. THE SUFFIX x REFERS TO THE I S OUTPUT 0, 1, 2, 3.
2. LRCLK IS A SIGNAL ACCESSIBLE VIA HA_AP5 BALL.
3. I2Sx ARE SIGNALS ACCESSIBLE VIA HA_AP1 TO HA_AP4 BALL.
Figure 4. HDMI Audio I2S Timing
t21
t23
t24
t22
TTX_SCLK
TTX_MOSI
TTX_CS
TTX_MISO
Figure 5. SPI Master Mode Timing
Rev. 0 | Page 11 of 32
ADV7850
Data Sheet
TTX_CS
TTX_SCLK
TTX_MOSI
INSTRUCTION (0x0B)
24-BIT ADDRESS
DUMMY BYTE
23 22 21 ...
3
2
1
0
7
6
5
4
3
2
1
0
DATA OUT 1
DATA OUT 2
TTX_MISO
7
6
5
4
3
2
1
0
7
6
5
4
3
2
1
0
Figure 6. SPI Master Mode Overview
t32
t29
t31
t30
TTX_SCLK
TTX_MOSI
TTX_CS
TTX_MISO
Figure 7. SPI Slave Mode Timing
t27
t25
t28
t26
CS
CPCL CPHA
0
0
TTX_SCLK
TTX_SCLK
0
1
1
1
0
1
TTX_SCLK
TTX_SCLK
W/R
DEVICE ADDRESS
TTX_MOSI
TTX_MISO
7
6
5
4
3
2
1 0
DUMMY BYTE
DATA OUT 0
7
6
5
4
3
2
1
0
Figure 8. SPI Slave Mode Overview
Rev. 0 | Page 12 of 32
Data Sheet
ADV7850
ABSOLUTE MAXIMUM RATINGS
Table 6.
PACKAGE THERMAL PERFORMANCE
To reduce power consumption when using the ADV7850, the
user is advised to turn off unused sections of the part.
Parameter
Rating
2.2 V
2.2 V
AVDD to GND
VDD to GND
Due to PCB metal variation, and, therefore, variation in PCB
heat conductivity, the value of θJA may differ for various PCBs.
PVDD to GND
TX_AVDD to GND
TX_PVDD to GND
SAVDD to GND
SDVDD to GND
CVDD to GND
DVDDIO to GND
TVDD to GND
AC_AVDD to GND
2.2 V
2.2 V
2.2 V
2.2 V
2.2 V
2.2 V
4.0 V
4.0 V
The most efficient measurement solution is obtained using the
package surface temperature to estimate the die temperature
because this eliminates the variance associated with the θJA value.
The maximum junction temperature (TJ MAX) of 125°C must not be
exceeded. The following equation calculates the junction tempera-
ture using the measured package surface temperature and applies
only when no heat sink is used on the device under test (DUT):
4.0 V
Maximum Difference Across All 1.8 V
Supplies
−0.3 V to +0.3 V
TJ = TS +
Ψ JT ×WTOTAL
Maximum Difference Across All 3.3 V
Supplies
Maximum Difference Between 3.3 V
Domain Supplies and 1.8 V Domain
Supplies
−0.3 V to +0.3 V
−0.3 V to +2.2 V
where:
TS is the package surface temperature (°C).
JT = 0.7°C/W for the 425-ball CSP_BGA.
TOTAL = (PVDD × IPVDD) + (0.4 × TVDD × ITVDD) +
Ψ
W
Digital Inputs Voltage to GND
Digital Outputs Voltage to GND
5 V Tolerant Digital Inputs to GND1
Analog Inputs to GND
−0.3 V to DVDDIO + 0.3 V
−0.3 V to DVDDIO + 0.3 V
5.5 V
−0.3V to AVDD + 0.3 V−0.3V
to AC_AVDD + 0.3 V
(CVDD × ICVDD) + (AVDD × IAVDD) + (VDD × IVDD) +
(DVDDIO × IDVDDIO) + (TX_AVDD × ITX_AVDD) +
(TX_PVDD × ITX_PVDD) + (SAVDD × ISAVDD) + (SDVDD ×
ISDVDD) + (TX_VDD33 × ITX_VDD33) + (AC_AVDD × IAC_AVDD)
XTALN and XTALP to GND
Maximum Junction Temperature (TJ MAX
Storage Temperature Range
−0.3 V to PVDD + 0.3 V
125°C
−65°C to +150°C
260°C
where 0.4 reflects the 40% of TVDD power that is dissipated on
the part itself.
)
ESD CAUTION
Infrared Reflow Soldering (20 sec)
1 The following inputs are 3.3 V inputs but are 5 V tolerant: HS_IN1/TRI7,
HS_IN2/TRI5, VS_IN1/TRI8, VS_IN2/TRI6, DDCA_SCL, DDCA_SDA, DDCB_SCL,
DDCB_SDA, DDCC_SCL, DDCC_SDA, DDCD_SCL, DDCD_SDA, VGA_SCL,
VGA_SDA, TX_DDC_SCL, TX_DDC_SDA, RXA_5V, RXB_5V, RXC_5V, RXD_5V
and VGA_5V.
Stresses above those listed under Absolute Maximum Ratings
may cause permanent damage to the device. This is a stress
rating only; functional operation of the device at these or any
other conditions above those indicated in the operational
section of this specification is not implied. Exposure to absolute
maximum rating conditions for extended periods may affect
device reliability.
Rev. 0 | Page 13 of 32
ADV7850
Data Sheet
PIN CONFIGURATION AND FUNCTION DESCRIPTIONS
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
GND
GND
GND
RXB_2+ RXB_1+ RXB_0+ RXB_C+ ARC_B
TVDD
RXC_2+ RXC_1+ RXC_0+ RXC_C+ ARC_C
RXC_2– RXC_1– RXC_0– RXC_C– HPA_C
GND
RXD_2+ RXD_1+ RXD_0+ RXD_C+ ARC_D
RXD_2– RXD_1– RXD_0– RXD_C– HPA_D
GND
GND
GND
A
B
A
B
ACMUXO ACMUXO
UT_R UT_L
ARC_A
HPA_A
GND
RXB_2– RXB_1– RXB_0– RXB_C– HPA_B
VDD_EEP
TVDD
TVDD
GND
GND
GND
GND
GND
ACMUXIN ACMUXIN
_1R _1L
RXA_C+ RXA_C– CVDD
GND
GND
GND
GND
TVDD
TVDD
TVDD
TVDD
TVDD
VREG
TVDD
TVDD
TVDD
TVDD
GND
C
C
ROM
DDCA_
SCL
DDCA_
SDA
DDCB_
SCL
DDCB_
SDA
DDCC_
SCL
DDCC_
SDA
DDCD_
SCL
DDCD_
SDA
ACMUXIN ACMUXIN
VGA_SCL VGA_SDA TVDD AC_AVDD AC_AVDD AC_AVDD
RXA_0+ RXA_0–
RXA_1+ RXA_1–
RXA_2+ RXA_2–
CVDD
CVDD
CVDD
TVDD
RXD_5V VGA_5V
RXC_5V
D
D
_2R
_2L
ACMUXIN ACMUXIN
_3R _3L
GND
GND
GND
E
E
ACMUXIN ACMUXIN
_4R _4L
RXB_5V
PLL_LF
F
F
ACMUXIN ACMUXIN
_5R
TVDD
TVDD
TVDD
GND TEST1 CVDD CVDD CVDD CVDD CVDD CVDD CVDD
GND
GND
GND
GND
GND
GND
GND
GND
GND
GND
GND
GND
GND
GND
GND
GND
GND
GND
GND
GND
GND
GND
AC_AVDD GND
G
H
G
H
_5L
VREF_AU
DIO
EP_MISO EP_MOSI SPDIF_IN RXA_5V
SHARED_
GND
GND
VDD
VDD
VDD
VDD
VDD
VDD
VDD
VDD
GND
GND
GND
GND
GND
GND
GND
GND
GND
VDD
GND
GND
GND
GND
GND
GND
GND
GND
GND
VDD
GND
GND
GND
GND
GND
GND
GND
GND
GND
VDD
GND
GND
GND
GND
GND
GND
GND
GND
GND
VDD
GND
GND
GND
GND
GND
GND
GND
GND
GND
VDD
GND
GND
GND
GND
GND
GND
GND
GND
GND
VDD
GND
GND
GND
GND
GND
GND
GND
GND
GND
TEST2
GND
GND
GND
GND
GND
GND
GND
GND
GND
GND
GND
GND
FILTA
EP_CS EP_SCK
RESET
AC_AVDD GND
ISET
AC_
FILTD
AC_
J
J
EDID
GND
GND
DVDDIO DVDDIO
AC_AVDD AC_AVDD
DACOUT_ DACOUT_
R
K
K
L
HA_AP5 HA_SCLK
INT1
INT2
SDA
SCL
AC_AVDD AC_AVDD HPOUT_R HPOUT_L
L
L
HA_AP3/
HA_AP4
AC_AVDD GND
GND
XTALN
GND
GND
XTALP
GND
M
N
M
N
INT3
AC_
LRCLK
HA_AP2 HA_AP1 AC_MCLK
PVDD
GND
PVDD
GND
HA_MCLK
OUT
HA_AP0
AC_SDI AC_SCLK
P
P
TTX_
SCLK
TTX_
MOSI
TTX_
TTX_CS
MISO
GND
GND
REFN
AVDD
AVIN11
AVDD
AVIN9
REFP
AVDD
AVIN10
AVDD
AVIN8
AVIN7
R
R
DVDDIO DVDDIO
TX_AVDD TX_AVDD
GND
GND
GND
GND
GND
GND
AVDD
AVIN13
AVDD
GND
AVDD
AVIN12
AVDD
AVOUT2
T
T
TX_DDC_
SCL
U
U
TX_DDC_
SDA
TX_2+
TX_1+
TX_0+
TX_C+
TX_2–
TX_1–
TX_0–
TX_C–
V
V
TX_HPD
GND
W
Y
W
Y
A7
A9
A3
A5
A6
A4
A10
A1
BA0
BA1
CAS
CS
CKE
WE
GND
GND
VREF
CK
DQ6
DQ4
DQ7
DQ5
DQ0
DQ2
DQ3
DQ1
DQ8
DQ11
DQ10
DQ9
UDQS
UDQSN
DQ12
SDVDD
SDVDD
DQ14
SAVDD
GND
TRI1
TRI2
GND
AVOUT1 SYNC3
HS_IN1/ VS_IN1/
TRI7
HS_IN2/ VS_IN2/
TRI5
TX_
AVDD
GND
GND
TRI3
AA
AB
AC
AA
AB
AC
TRI8
TRI6
TX_
PVDD
TX_
PLVDD
SDVDD
SDVDD
A11
A8
A2
RAS
CKN
SDVDD
SDVDD
LDQSN
LDQS
GND
SYNC1
AVIN3
GND
SYNC2
AVIN4
AVIN6
TRI4
GND
GND
TX_
VDD33
TX_
RTERM
A0
DQ15
DQ13
GND
AVIN1
AVIN2
GND
AVIN5
GND
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
Figure 9. Pin Configuration
Rev. 0 | Page 14 of 32
Data Sheet
ADV7850
Table 7. Pin Function Descriptions
Pin No. Mnemonic
Description
A1
GND
Ground.
A2
GND
Ground.
A3
GND
Ground.
A4
A5
A6
A7
A8
A9
RXB_2+
RXB_1+
RXB_0+
RXB_C+
ARC_B
TVDD
Digital Input Channel 2 True of Port B in the HDMI Interface.
Digital Input Channel 1 True of Port B in the HDMI Interface.
Digital Input Channel 0 True of Port B in the HDMI Interface.
Digital Input Clock True of Port B in the HDMI interface.
Single-Ended Audio Return Channel of Port B in the HDMI Interface.
HDMI Termination Supply (3.3 V).
A10
A11
A12
A13
A14
A15
A16
A17
A18
A19
A20
A21
A22
A23
B1
RXC_2+
RXC_1+
RXC_0+
RXC_C+
ARC_C
GND
RXD_2+
RXD_1+
RXD_0+
RXD_C+
ARC_D
GND
GND
GND
ARC_A
HPA_A
GND
Digital Input Channel 2 True of Port C in the HDMI Interface.
Digital Input Channel 1 True of Port C in the HDMI Interface.
Digital Input Channel 0 True of Port C in the HDMI Interface.
Digital Input Clock True of Port C in the HDMI Interface.
Single-Ended Audio Return Channel of Port C in the HDMI Interface.
Ground.
Digital Input Channel 2 True of Port D in the HDMI Interface.
Digital Input Channel 1 True of Port D in the HDMI Interface.
Digital Input Channel 0 True of Port D in the HDMI Interface.
Digital Input Clock True of Port D in the HDMI Interface.
Single-Ended Audio Return Channel of Port D in the HDMI Interface.
Ground.
Ground.
Ground.
Single-Ended Audio Return Channel of Port A in the HDMI Interface.
Hot Plug Assert for Port A.
Ground.
B2
B3
B4
B5
B6
B7
B8
B9
RXB_2−
RXB_1−
RXB_0−
RXB_C−
HPA_B
TVDD
Digital Input Channel 2 Complement of Port B in the HDMI Interface.
Digital Input Channel 1 Complement of Port B in the HDMI Interface.
Digital Input Channel 0 Complement of Port B in the HDMI Interface.
Digital Input Clock Complement of Port B in the HDMI Interface.
Hot Plug Assert for Port B.
HDMI Termination Supply (3.3 V).
B10
B11
B12
B13
B14
B15
B16
B17
B18
B19
B20
B21
B22
B23
C1
RXC_2−
RXC_1−
RXC_0−
RXC_C−
HPA_C
GND
RXD_2−
RXD_1−
RXD_0−
RXD_C−
HPA_D
GND
ACMUXOUT_R
ACMUXOUT_L
RXA_C+
RXA_C−
CVDD
Digital Input Channel 2 Complement of Port C in the HDMI Interface.
Digital Input Channel 1 Complement of Port C in the HDMI Interface.
Digital Input Channel 0 Complement of Port C in the HDMI Interface.
Digital Input Clock Complement of Port C in the HDMI Interface.
Hot Plug Assert for Port C.
Ground.
Digital Input Channel 2 Complement of Port D in the HDMI Interface.
Digital Input Channel 1 Complement of Port D in the HDMI Interface.
Digital Input Channel 0 Complement of Port D in the HDMI Interface.
Digital Input Clock Complement of Port D in the HDMI Interface.
Hot Plug Assert for Port D.
Ground.
Audio Codec Mux Output Right Channel.
Audio Codec Mux Output Left Channel.
Digital Input Clock True of Port A in the HDMI Interface.
Digital Input Clock Complement of Port A in the HDMI Interface.
HDMI Comparator Supply (1.8 V).
C2
C3
C4
GND
Ground.
C5
GND
Ground.
C6
GND
Ground.
Rev. 0 | Page 15 of 32
ADV7850
Data Sheet
Pin No. Mnemonic
Description
C7
GND
Ground.
C8
C9
VDD_EEPROM
TVDD
External EDID EEPROM Power Supply.
HDMI Termination Supply (3.3 V).
C10
C11
C12
C13
C14
C15
C16
C17
C18
C19
C20
C21
C22
C23
D1
TVDD
TVDD
TVDD
TVDD
TVDD
GND
TVDD
TVDD
TVDD
TVDD
GND
GND
ACMUXIN_1R
ACMUXIN_1L
RXA_0+
RXA_0−
CVDD
HDMI Termination Supply (3.3 V).
HDMI Termination Supply (3.3 V).
HDMI Termination Supply (3.3 V).
HDMI Termination Supply (3.3 V).
HDMI Termination Supply (3.3 V).
Ground.
HDMI Termination Supply (3.3 V).
HDMI Termination Supply (3.3 V).
HDMI Termination Supply (3.3 V).
HDMI Termination Supply (3.3 V).
Ground.
Ground.
Audio Codec Mux Input 1 Right Channel.
Audio Codec Mux Input 1 Left Channel.
Digital Input Channel 0 True of Port A in the HDMI Interface.
Digital Input Channel 0 Complement of Port A in the HDMI Interface.
HDMI Comparator Supply (1.8 V).
D2
D3
D4
D5
D6
D7
D8
D9
RXD_5V
VGA_5V
DDCA_SCL
DDCA_SDA
DDCB_SCL
DDCB_SDA
DDCC_SCL
DDCC_SDA
DDCD_SCL
DDCD_SDA
VREG
5 V Detect Pin for Port D in the HDMI Interface.
5 V Detect I/O for VGA Connector.
Serial Clock for DDC Bus of Port A. DDCA_SCL is 5 V tolerant.
Serial Data for DDC Bus of Port A. DDCA_SDA is 5 V tolerant.
Serial Clock Port for DDC Bus of Port B. DDCB_SCL is 5 V tolerant.
Serial Data Port for DDC Bus of Port B. DDCB_SDA is 5 V tolerant.
Serial Clock Port for DDC Bus of Port C. DDCC_SCL is 5 V tolerant.
Serial Data Port for DDC Bus of Port C. DDCC_SDA is 5 V tolerant.
Serial Clock Port for DDC Bus of Port D. DDCD_SCL is 5 V tolerant.
Serial Data Port for DDC Bus of Port D. DDCD_SDA is 5 V tolerant.
Voltage Regulator Output. Must be decoupled to GND via 1 µF capacitor.
Ground.
Serial Clock for VGA Interface. VGA_SCL is 5 V tolerant.
Serial Data for VGA Interface. VGA_SDA is 5 V tolerant.
HDMI Termination Supply (3.3 V).
Audio Block Supply (3.3 V).
Audio Block Supply (3.3 V).
D10
D11
D12
D13
D14
D15
D16
D17
D18
D19
D20
D21
D22
D23
E1
GND
VGA_SCL
VGA_SDA
TVDD
AC_AVDD
AC_AVDD
AC_AVDD
ACMUXIN_2R
ACMUXIN_2L
RXA_1+
RXA_1−
CVDD
Audio Block Supply (3.3 V).
Audio Codec Mux Input 2 Right Channel.
Audio Codec Mux Input 2 Left Channel.
Digital Input Channel 1 True of Port A in the HDMI Interface.
Digital Input Channel 1 Complement of Port A in the HDMI Interface.
HDMI Comparator Supply (1.8 V).
E2
E3
E4
RXC_5V
GND
GND
ACMUXIN_3R
ACMUXIN_3L
RXA_2+
RXA_2−
CVDD
5 V Detect Pin for Port C in the HDMI Interface.
Ground.
Ground.
Audio Codec Mux Input 3 Right Channel.
Audio Codec Mux Input 3 Left Channel.
Digital Input Channel 2 True of Port A in the HDMI Interface.
Digital Input Channel 2 Complement of Port A in the HDMI Interface.
HDMI Comparator Supply (1.8 V).
E20
E21
E22
E23
F1
F2
F3
F4
F20
RXB_5V
PLL_LF
5 V Detect Pin for Port B in the HDMI Interface.
Loop Filter Ball for Audio Codec PLL.
Rev. 0 | Page 16 of 32
Data Sheet
ADV7850
Pin No. Mnemonic
Description
F21
F22
F23
G1
GND
Ground.
ACMUXIN_4R
ACMUXIN_4L
TVDD
Audio Codec Mux Input 4 Right Channel.
Audio Codec Mux Input 4 Left Channel.
HDMI Termination Supply (3.3 V).
G2
TVDD
HDMI Termination Supply (3.3 V).
G3
TVDD
HDMI Termination Supply (3.3 V).
G4
TVDD
HDMI Termination Supply (3.3 V).
G7
GND
Ground.
G8
G9
TEST1
CVDD
CVDD
CVDD
CVDD
CVDD
CVDD
CVDD
GND
GND
AC_AVDD
GND
ACMUXIN_5R
ACMUXIN_5L
EP_MISO
EP_MOSI
SPDIF_IN
RXA_5V
GND
Test Pin. Do not connect.
HDMI Comparator Supply (1.8 V).
HDMI Comparator Supply (1.8 V).
HDMI Comparator Supply (1.8 V).
HDMI Comparator Supply (1.8 V).
HDMI Comparator Supply (1.8 V).
HDMI Comparator Supply (1.8 V).
HDMI Comparator Supply (1.8 V).
Ground.
Ground.
Audio Block Supply (3.3 V).
Ground.
Audio Codec Mux Input 5 Right Channel.
Audio Codec Mux Input 5 Left Channel.
External EDID EEPROM Interface.
External EDID EEPROM Interface.
G10
G11
G12
G13
G14
G15
G16
G17
G20
G21
G22
G23
H1
H2
H3
H4
H7
S/PDIF Digital Audio Input for Audio Return Channel (ARC).
5 V Detect Pin for Port A in the HDMI Interface.
Ground.
H8
GND
Ground.
H9
GND
Ground.
H10
H11
H12
H13
H14
H15
H16
H17
H20
H21
H22
H23
J1
GND
GND
GND
GND
GND
GND
GND
GND
GND
GND
FILTA
VREF_AUDIO
EP_CS
EP_SCK
SHARED_EDID
RESET
GND
GND
GND
GND
GND
GND
GND
GND
Ground.
Ground.
Ground.
Ground.
Ground.
Ground.
Ground.
Ground.
Ground.
Ground.
Audio Codec ADC Filter Capacitor.
Audio Codec Block Reference Voltage Capacitor.
External EDID EEPROM Interface.
J2
J3
J4
J7
J8
J9
J10
J11
J12
J13
J14
External EDID EEPROM Interface.
EDID Selection Signal for HDMI Port D.
Chip Reset. Active low. Minimum low time guarantee reset is 5 ms.
Ground.
Ground.
Ground.
Ground.
Ground.
Ground.
Ground.
Ground.
Rev. 0 | Page 17 of 32
ADV7850
Data Sheet
Pin No. Mnemonic
Description
J15
J16
J17
J20
J21
J22
J23
K1
GND
GND
GND
AC_AVDD
GND
ISET
FILTD
GND
Ground.
Ground.
Ground.
Audio Block Supply (3.3 V).
Ground.
Audio Codec ADC Current Settings.
Audio Codec DAC Filter Capacitor.
Ground.
K2
GND
Ground.
K3
K4
K7
K8
DVDDIO
DVDDIO
VDD
I/O Supply (3.3 V).
I/O Supply (3.3 V).
Video Digital Supply (1.8 V).
Ground.
GND
K9
GND
Ground.
K10
K11
K12
K13
K14
K15
K16
K17
K20
K21
K22
K23
L1
GND
GND
GND
GND
GND
GND
GND
GND
Ground.
Ground.
Ground.
Ground.
Ground.
Ground.
Ground.
Ground.
AC_AVDD
AC_AVDD
Audio Block Supply (3.3 V).
Audio Block Supply (3.3 V).
AC_DACOUT_R Audio Codec DAC Output Right Channel.
AC_DACOUT_L Audio Codec DAC Output Left Channel
HA_AP5
HA_SCLK
INT1
SDA
VDD
GND
HDMI Audio Port Output.
HDMI Audio Port Serial Clock Output.
External Interrupt 1.
I2C Port Serial Data Input/Output.
Video Digital Supply (1.8 V).
Ground.
L2
L3
L4
L7
L8
L9
GND
Ground.
L10
L11
L12
L13
L14
L15
L16
L17
L20
L21
L22
L23
M1
M2
GND
GND
GND
GND
GND
GND
GND
GND
AC_AVDD
AC_AVDD
HPOUT_R
HPOUT_L
HA_AP4
HA_AP3/INT3
Ground.
Ground.
Ground.
Ground.
Ground.
Ground.
Ground.
Ground.
Audio Block Supply (3.3 V).
Audio Block Supply (3.3 V).
Headphone Output Right Channel.
Headphone Output Left Channel.
HDMI Audio Port Output.
HDMI Audio Port Output/External Interrupt 3. This pin can be configured as a TTL output interrupt pin for the
VDP SPI interface.
M3
M4
M7
M8
M9
INT2
SCL
VDD
GND
GND
External Interrupt 2.
I2C Port Serial Clock Input.
Video Digital Supply (1.8 V).
Ground.
Ground.
Rev. 0 | Page 18 of 32
Data Sheet
ADV7850
Pin No. Mnemonic
Description
M10
M11
M12
M13
M14
M15
M16
M17
M20
M21
M22
M23
N1
GND
GND
GND
GND
GND
GND
GND
GND
Ground.
Ground.
Ground.
Ground.
Ground.
Ground.
Ground.
Ground.
AC_AVDD
GND
GND
Audio Block Supply (3.3 V).
Ground.
Ground.
GND
Ground.
HA_AP2
HA_AP1
AC_MCLK
AC_LRCLK
VDD
HDMI Audio Port Output.
HDMI Audio Port Output.
Audio Codec/DAC Clock Input.
Audio DAC Left/Right Clock Input.
Video Digital supply (1.8 V).
Ground.
N2
N3
N4
N7
N8
GND
N9
GND
Ground.
N10
N11
N12
N13
N14
N15
N16
N17
N20
N21
N22
N23
P1
GND
GND
GND
GND
GND
GND
GND
GND
PVDD
PVDD
XTALN
XTALP
HA_AP0
HA_MCLKOUT
AC_SDI
AC_SCLK
VDD
Ground.
Ground.
Ground.
Ground.
Ground.
Ground.
Ground.
Ground.
DPLL Supply (1.8 V).
DPLL Supply (1.8 V).
Crystal Output.
Crystal Input or External Clock Input.
HDMI Audio Port Output.
HDMI Audio Master Clock Output.
Audio DAC Data Input.
Audio DAC SCLK Input.
Video Digital Supply (1.8 V).
Ground.
P2
P3
P4
P7
P8
GND
P9
GND
Ground.
P10
P11
P12
P13
P14
P15
P16
P17
P20
P21
P22
P23
R1
GND
GND
GND
GND
GND
GND
GND
GND
GND
GND
GND
GND
TTX_SCLK
TTX_MOSI
TTX_MISO
Ground.
Ground
Ground
Ground
Ground
Ground
Ground
Ground
Ground
Ground
Ground
Ground
VBI Data Interface.
VBI Data Interface.
VBI Data Interface.
R2
R3
Rev. 0 | Page 19 of 32
ADV7850
Data Sheet
Pin No. Mnemonic
Description
R4
TTX_CS
VDD
VBI Data Interface.
R7
Video Digital Supply (1.8 V).
R8
GND
Ground.
R9
GND
Ground.
R10
R11
R12
R13
R14
R15
R16
R17
R20
R21
R22
R23
T1
GND
GND
GND
GND
GND
GND
GND
GND
Ground.
Ground.
Ground.
Ground.
Ground.
Ground.
Ground.
Ground.
GND
GND
Ground.
Ground.
REFN
REFP
DVDDIO
DVDDIO
GND
Negative Analog Video Reference Output.
Positive Analog Video Reference Output.
I/O Supply (3.3 V).
I/O Supply (3.3 V).
Ground.
T2
T3
T4
GND
Ground.
T7
T8
VDD
GND
Video Digital Supply (1.8 V).
Ground.
T9
GND
Ground.
T10
T11
T12
T13
T14
T15
T16
T17
T20
T21
T22
T23
U1
GND
GND
GND
GND
GND
GND
GND
GND
AVDD
AVDD
AVDD
AVDD
TX_AVDD
TX_AVDD
GND
Ground.
Ground.
Ground.
Ground.
Ground.
Ground.
Ground.
Ground.
Video Analog Supply Voltage (1.8 V).
Video Analog Supply Voltage (1.8 V).
Video Analog Supply Voltage (1.8 V).
Video Analog Supply Voltage (1.8 V).
HDMI Tx Analog Supply (1.8 V).
HDMI Tx Analog Supply (1.8 V).
Ground.
U2
U3
U4
U7
U8
U9
TX_DDC_SCL
VDD
VDD
VDD
VDD
VDD
VDD
VDD
TEST2
GND
GND
GND
AVIN13
AVIN12
AVIN11
Serial Clock for DDC Bus of HDMI Tx. TX_DDCA_SCL is 5 V tolerant.
Video Digital Supply (1.8 V).
Video Digital Supply (1.8 V).
Video Digital Supply (1.8 V).
Video Digital Supply (1.8 V).
Video Digital Supply (1.8 V).
Video Digital Supply (1.8 V).
Video Digital Supply (1.8 V).
Test Pin. Do not connect.
Ground.
U10
U11
U12
U13
U14
U15
U16
U17
U20
U21
U22
Ground.
Ground.
Analog Video Mux Input Channel.
Analog Video Mux Input Channel.
Analog Video Mux Input Channel.
Rev. 0 | Page 20 of 32
Data Sheet
ADV7850
Pin No. Mnemonic
Description
U23
V1
V2
AVIN10
TX_2+
TX_2−
Analog Video Mux Input Channel.
Digital Output Channel 2 True of the HDMI Tx.
Digital Output Channel 2 Complement of the HDMI Tx.
Ground.
V3
GND
V4
V20
V21
TX_DDC_SDA
AVDD
AVDD
Serial Data for DDC Bus of HDMI Tx. TX_DDCA_SDA is 5 V tolerant.
Video Analog Supply Voltage (1.8 V).
Video Analog Supply Voltage (1.8 V).
V22
V23
W1
W2
W3
AVDD
AVDD
TX_1+
TX_1−
GND
Video Analog Supply Voltage (1.8 V).
Video Analog Supply Voltage (1.8 V).
Digital Output Channel 1 True of the HDMI Tx.
Digital Output Channel 1 Complement of the HDMI Tx.
Ground.
W4
TX_HPD
GND
Hot Plug Detect Signal of the HDMI Tx.
Ground.
W20
W21
W22
W23
Y1
AVOUT2
AVIN9
AVIN8
TX_0+
TX_0−
GND
Analog Video Mux Output 2.
Analog Video Mux Input Channel.
Analog Video Mux Input Channel.
Digital Output Channel 0 True of the HDMI Tx.
Digital Output Channel 0 Complement of the HDMI Tx.
Ground.
Y2
Y3
Y4
GND
Ground.
Y5
A7
SDRAM Address Line.
Y6
A3
SDRAM Address Line.
Y7
A10
SDRAM Address Line.
Y8
Y9
BA0
CKE
SDRAM Block Address Signal.
SDRAM Clock Enable.
Y10
Y11
Y12
Y13
Y14
Y15
Y16
Y17
Y18
Y19
Y20
Y21
Y22
Y23
AA1
AA2
AA3
AA4
AA5
AA6
AA7
AA8
AA9
AA10
AA11
AA12
AA13
GND
DQ6
DQ7
DQ0
Ground.
SDRAM Data Line.
SDRAM Data Line.
SDRAM Data Line.
SDRAM Data Line.
SDRAM Upper Data Strobe True Signal.
Memory Interface Supply.
DQ8
UDQS
SDVDD
SAVDD
TRI1
TRI2
GND
AVOUT1
SYNC3
AVIN7
TX_C+
TX_C−
TX_AVDD
GND
A9
A5
A1
BA1
WE
GND
DQ4
DQ5
SDRAM Interface Supply.
Digital Input Capable of Slicing Bilevel or Trilevel Input from SCART or D-Connector.
Digital Input Capable of Slicing Bilevel or Trilevel Input from SCART or D-Connector.
Ground.
Analog Video Mux Output 1.
This is a synchronization on green or luma input (SOG/SOY) used in embedded synchronization mode.
Analog Video Mux Input Channel.
Digital Output Clock True of the HDMI Tx.
Digital Output Clock Complement of the HDMI Tx.
HDMI Tx Analog Supply (1.8 V).
Ground.
SDRAM Address Line.
SDRAM Address Line.
SDRAM Address Line.
SDRAM Block Address Signal.
SDRAM Write Enable Signal.
Ground.
SDRAM Data Line.
SDRAM Data Line.
DQ2
SDRAM Data Line.
Rev. 0 | Page 21 of 32
ADV7850
Data Sheet
Pin No. Mnemonic
Description
AA14
AA15
AA16
AA17
AA18
DQ11
SDRAM Data Line.
UDQSN
SDVDD
GND
SDRAM Upper Data Strobe Complement Signal.
Memory Interface Supply.
Ground.
HS on Graphics Port/Digital Input Capable of Slicing Bilevel or Trilevel Input from SCART or D-Connector. The
HS input signal is used for 5-wire timing mode. This ball can also be used as a trilevel/bilevel input on the
SCART or D-connector.
HS_IN1/TRI7
AA19
VS_IN1/TRI8
VS on Graphics Port/Digital Input Capable of Slicing Bilevel or Trilevel Input from SCART or D-Connector. The VS
input signal is used for 5-wire timing mode. This ball can also be used as a trilevel/bilevel input on the SCART or
D-connector.
AA20
AA21
AA22
GND
TRI3
HS_IN2/TRI5
Ground.
Digital Input Capable of Slicing Bilevel or Trilevel Input from SCART or D-Connector.
HS on Graphics Port/Digital Input Capable of Slicing Bilevel or Trilevel Input from SCART or D-Connector. The
HS input signal is used for 5-wire timing mode. This ball can also be used as a trilevel/bilevel input on the
SCART or D-connector.
AA23
VS_IN2/TRI6
HS on Graphics Port/Digital Input Capable of Slicing Bilevel or Trilevel Input from SCART or D-Connector. The VS
input signal is used for 5-wire timing mode. This ball can also be used as a trilevel/bilevel input on the SCART or
D-connector.
AB1
AB2
AB3
AB4
AB5
AB6
AB7
AB8
GND
Ground.
HDMI Tx Digital Supply (1.8 V).
HDMI Tx PLL Digital Supply (1.8 V). It is important to ensure that this supply pin has a clean voltage input.
Memory Interface Supply.
SDRAM Address Line.
SDRAM Address Line.
SDRAM Address Line.
TX_PVDD
TX_PLVDD
SDVDD
A11
A6
A2
CAS
SDRAM Interface Column Address Select Command Signal. One of four command signals to the external
SDRAM.
AB9
RAS
SDRAM Interface Row Address Select Command Signal. One of four command signals to the external SDRAM.
AB10
AB11
AB12
AB13
AB14
AB15
AB16
AB17
AB18
AB19
AB20
AB21
AB22
AB23
AC1
VREF
Termination Reference Voltage for Memory Interface.
Memory Interface Supply.
SDRAM Lower Data Strobe Complement Signal.
SDRAM Data Line.
SDRAM Data Line.
SDRAM Data Line.
SDRAM Data Line.
Ground.
This is a synchronization on green or luma input (SOG/SOY) used in embedded synchronization mode.
Analog Video Mux Input Channel.
Ground.
This is a synchronization on green or luma input (SOG/SOY) used in embedded synchronization mode.
Analog Video Mux Input Channel.
Digital Input Capable of Slicing Bilevel or Trilevel Input from SCART or D-Connector.
Ground.
SDVDD
LDQSN
DQ3
DQ10
DQ12
DQ14
GND
SYNC1
AVIN3
GND
SYNC2
AVIN6
TRI4
GND
AC2
AC3
AC4
AC5
TX_RTERM
TX_VDD33
SDVDD
A8
This signal sets the internal termination resistance. A 500 Ωresistor between this ball and GND should be used.
HDMI Tx PLL Regulator Supply Input (3.3V). This pin is an internal voltage regulator input.
Memory Interface Supply.
SDRAM Address Line.
AC6
A4
SDRAM Address Line.
AC7
A0
SDRAM Address Line.
AC8
CS
SDRAM Interface Chip Select. SDRAM CS enables and disables the command decoder on the RAM. One of four
command signals to the external SDRAM.
AC9
CKN
CK
SDRAM Interface Differential Clock Compliment Output. All address and control output signals to the RAM
should be sampled on the positive edge of CK and on the negative edge of CKN.
SDRAM Interface Differential Clock Right Output. All address and control output signals to the RAM should be
sampled on the positive edge of CK and on the negative edge of CKN.
AC10
Rev. 0 | Page 22 of 32
Data Sheet
ADV7850
Pin No. Mnemonic
Description
AC11
AC12
AC13
AC14
AC15
AC16
AC17
AC18
AC19
AC20
AC21
AC22
AC23
SDVDD
LDQS
DQ1
Memory Interface Supply.
SDRAM Lower Data Strobe True Signal.
SDRAM Data Line.
SDRAM Data Line.
SDRAM Data Line.
DQ9
DQ15
DQ13
GND
AVIN1
AVIN2
GND
AVIN4
AVIN5
GND
SDRAM Data Line.
Ground.
Analog Video Mux Input Channel.
Analog Video Mux Input Channel.
Ground.
Analog Video Mux Input Channel.
Analog Video Mux Input Channel.
Ground.
Rev. 0 | Page 23 of 32
ADV7850
Data Sheet
POWER SUPPLY SEQUENCING
In this case, care must be taken to ensure that a lower rated supply
does not go above a higher rated supply level as the supplies are
being established.
POWER-UP SEQUENCE
The recommended power-up sequence of the ADV7850 is as
follows:
POWER-DOWN SEQUENCE
1. 3.3 V supplies
2. 1.8 V supplies
The ADV7850 supplies can be powered down simultaneously as
long as the 3.3 V supply domain does not go below the 1.8 V
supply domain.
3.3V
3.3V SUPPLIES
POWER SUPPLY REQUIREMENTS
Table 8 shows the current rating recommendations for power
supply design. These values should be used when designing a
power supply section to ensure that an adequate current can be
supplied to the ADV7850.
1.8V SUPPLIES
1.8V
Table 8. Current Rating Recommendation for Power Supply
Design
Parameter
Rating
600 mA
450 mA
400 mA
350 mA
150 mA
100 mA
60 mA
50 mA
50 mA
50 mA
20 mA
20 mA
IDVDD
ICVDD
ITVDD
IAVDD
IAC_AVDD
ITX_PVDD
IPVDD
ITX_VDD33
ISDVDD
ITX_AVDD
IDVDDIO
ISAVDD
3.3V SUPPLIES
POWER-UP
1.8V SUPPLIES
POWER-UP
Figure 10. Recommended Power-Up Sequence
Notes
RESET should be held low while the supplies are being
powered up.
3.3 V supplies should be powered up first.
1.8 V supplies should be powered up last.
The ADV7850 can alternatively be powered up by asserting all
supplies simultaneously.
Rev. 0 | Page 24 of 32
Data Sheet
ADV7850
FUNCTIONAL OVERVIEW
•
•
Internal E-EDID RAM
Hot plug assert output pin for each HDMI port
HDMI RECEIVER
The ADV7850 front end incorporates a 4:1 multiplexed HDMI
receiver with Xpressview fast switching technology and support
for HDMI features including ARC and 3D TV. Building on the
feature set of Analog Devices existing HDMI devices, the
ADV7850 also offers support for all HDTV formats up to 3D
1080p at 60 Hz and 2160p at 24 Hz. Xpressview fast switching
technology, using the Analog Devices hardware-based HDCP
engine that minimizes software overhead, allows switching
between any two input ports in less than 1 second.
ANALOG FRONT END
The ADV7850 analog front end comprises four 170 MHz, 12-bit
ADCs that digitize the analog video signal before applying it
to the standard definition processor (SDP) or component
processor (CP).
The front end also includes a 13-channel input mux that enables
multiple video signals to be applied to the ADV7850 without
the requirement of an external mux.
With the inclusion of HDCP 1.4, the ADV7850 can receive
encrypted video content. The HDMI interface of the ADV7850
allows for authentication of a video receiver, decryption of encoded
data at the receiver, and renewal of that authentication during
transmission, as specified by the HDCP 1.4 protocol. Repeater
support is also offered by the ADV7850.
Current and voltage clamp control loops ensure that any dc
offsets are set properly for the video signal. The clamps are
positioned in front of each ADC to ensure that the video signal
remains within the range of the converter.
The ADCs are configured to run up to 4× oversampling mode
when decoding composite, S-Video, or SCART inputs. For
component 525i, 625i, 525p, and 625p sources, 4× oversampling is
performed. Higher frequency video standards can be 2× or 1×
oversampled. Oversampling the video signals reduces the cost
and complexity of external antialiasing filters with the benefit of
an increased signal-to-noise ratio (SNR).
The ADV7850 supports the audio return channel feature. There
is a dedicated S/PDIF input on which audio can be received for
retransmission on the HDMI input. Wide ranges of 3D video
formats are supported, including frame packing up to 3D 1080p
at 60 Hz and 2160p at 24 Hz.
The HDMI receiver incorporates active equalization of the
HDMI data signals. This equalization compensates for the high
frequency losses inherent in HDMI and DVI cabling, especially
at longer lengths and higher frequencies. It is capable of equaliz-
ing for cable lengths up to 30 meters to achieve robust receiver
performance at even the highest HDMI data rates.
Optional internal antialiasing filters with programmable
bandwidth are positioned in front of each ADC. These filters
can be used to band-limit video signals, removing spurious out-
of-band noise.
The ADV7850 can support the simultaneous processing of
CVBS and RGB standard definition signals to enable SCART
compatibility and overlay functionality. A combination of
CVBS and RGB inputs can be mixed with the output under the
control of I2C registers.
The HDMI receiver offers advanced audio functionality. It sup-
ports multichannel I2S audio for up to eight channels. It also
supports a six-DSD channel interface with each channel carry-
ing an oversampled 1-bit representation of the audio signal as
delivered on SACD. The ADV7850 can also receive HBR audio
packet streams and outputs them through the HBR interface in
an S/PDIF format conforming to the IEC 60958 standard.
Analog front-end features include:
•
•
•
•
•
•
Four 170 MHz, 12-bit NSV ADCs that enable 10-bit (SD)/
12-bit (CP) video decoding
The receiver contains an audio mute controller that can detect a
variety of conditions that may result in audible extraneous noise
in the audio output. On detection of these conditions, the audio
signal can be muted to prevent audio clicks or pops.
13-channel analog input mux that enables multiple source
connections without the requirement of an external mux
Four current and voltage clamp control loops that ensure
any dc offsets are set properly for the video signal
SCART functionality and SD RGB overlay on CVBS
controlled by fastblank input
SCART source switching detection through the TRI1 to TRI8
inputs
Four programmable antialiasing filters
HDMI receiver features include:
•
•
•
•
•
4:1 multiplexed HDMI receiver
HDMI, ARC, and 3D format support, DVI 1.0
297 MHz HDMI receiver
Integrated equalizer
High-bandwidth Digital Content Protection (HDCP 1.4)
on background ports
•
•
•
•
Internal HDCP keys
36-/30-bit Deep Color support
PCM, HBR, DSD, and DST audio packet support
Repeater support
Rev. 0 | Page 25 of 32
ADV7850
Data Sheet
•
•
Advanced TBC with frame synchronization, which ensures
nominal clock and data for nonstandard input
Color controls that include hue, brightness, saturation,
and contrast
STANDARD DEFINITION PROCESSOR
The SDP is capable of decoding a large selection of baseband
video signals in composite, S-Video, and 525i/625i component
formats. The video standards supported by the SDP include
PAL, PAL 60, PAL M, PAL N, PAL NC, NTSC M/J, NTSC 4.43,
and SECAM. The ADV7850 can automatically detect the video
standard and process it accordingly.
COMPONENT PROCESSOR
The CP section of the ADV7850 is capable of decoding and
digitizing a wide range of component video formats in any color
space. Component video standards supported by the CP include
525i, 625i, 525p, 625p, 720p, 1080i, 1080p, 1250i, VGA up to
UXGA at 60 Hz, and many other standards.
The SDP has a 3D temporal comb filter and a five-line adaptive
2D comb filter that gives superior chrominance and luminance
separation when decoding a composite video signal. This highly
adaptive filter automatically adjusts its processing mode according
to the video standard and signal quality with no user intervention
required. The SDP has an IF filter block that compensates for
attenuation in the high frequency chroma spectrum due to a tuner
SAW filter. The SDP has specific luminance and chrominance
parameter controls for brightness, contrast, saturation, and hue.
The any-to-any, 3 × 3 CSC matrix is placed between the analog
front end and the CP section. This enables YPbPr-to-RGB and
RGB-to-YCbCr conversions. Many other standards of color
space can be implemented using the color space converter.
The CP section contains circuitry to enable the detection of
Macrovision encoded YPbPr signals for 525i, 625i, 525p, and
625p. It is designed to be fully robust when decoding these
types of signals.
The ADV7850 implements a patented Adaptive Digital Line
Length Tracking (ADLLT™) algorithm to track varying video
line lengths from sources such as a VCR. ADLLT enables the
ADV7850 to track and decode poor quality video sources (such
as VCRs) and noisy sources (such as tuner outputs, VCR players,
and camcorders). Frame TBC ensures stable clock synchroniza-
tion between the decoder and the downstream devices.
CP features include:
•
525i, 625i, 525p, 625p, 720p, 1080i, 1080p, and many other
HDTV formats are supported
Supports 720p at 24 Hz/25 Hz formats
Manual adjustments including gain (contrast), offset
(brightness), hue, and saturation
•
•
The SDP also contains both a luma transient improvement (LTI)
block and a chroma transient improvement (CTI) block. These
increase the edge rate on the luma and chroma transitions,
resulting in a sharper video image.
•
•
•
Support for analog component YPbPr and RGB video
formats with embedded synchronization, composite
synchronization, or separate HS and VS
Any-to-any, 3 × 3 CSC matrix that supports YCbCr-to-
RGB and RGB-to-YCbCr, fully programmable or
preprogrammable configurations
Synchronization source polarity detector (SSPD) that
determines the source and polarity of the synchronization
signals that accompany the input video
Macrovision copy protection detection on component
formats (525i, 625i, 525p, and 625p)
Free-run output mode that provides stable timing when no
video input is present or video lock is lost
Arbitrary pixel sampling support for nonstandard video
sources
170 MHz conversion rate, which supports RGB input
resolutions up to 1600 × 1200 at 60 Hz
Automatic or manual clamp-and-gain controls for
graphics modes
32-phase ADC DLL that allows optimum pixel clock
sampling
Automatic detection of synchronization source and
polarity by SSPD block
Standard identification enabled by STDI block
RGB that can be color space converted to YCbCr and
decimated to a 4:2:2 format for video-centric back-end IC
interfacing
The SDP has a Macrovision® detection circuit that allows Type I,
Type II, and Type III Macrovision protection levels. The
decoder is also fully robust to all Macrovision signal inputs.
SDP features include:
•
Advanced adaptive 3D comb (using the external DDR2
memory)
•
Adaptive 2D five-line comb filters for NTSC and PAL that
give superior chrominance and luminance separation for
composite video
•
•
•
•
•
•
•
•
•
Full automatic detection and autoswitching of all
worldwide standards (PAL, NTSC, and SECAM)
Automatic gain control with white peak mode that
ensures the video is always processed without loss of
the video processing range
•
•
Proprietary architecture for locking to weak, noisy, and
unstable sources from VCRs and tuners
IF filter block that compensates for high frequency luma
attenuation due to tuner SAW filter
•
•
•
•
LTI and CTI
Vertical and horizontal programmable luma peaking filters
4× oversampling (54 MHz) for CVBS, and S-Video modes
Free-run output mode that provides stable timing when no
video input is present or video lock is lost
Internal color bar test pattern
•
•
•
Rev. 0 | Page 26 of 32
Data Sheet
ADV7850
Double Data Rate 2 (DDR2)
VBI DATA PROCESSOR (VDP)
The ADV7850 can use DDR2 external memory to simultane-
ously provide 3D comb and frame TBC operation.
VBI extraction of Teletext, CC, WSS, CGMS, PDC, UTC, VPS,
GEMSTAR, and VITC data is performed by the VBI data
processor of the ADV7850 at interlaced, progressive, and high
definition scanning rates. The data extracted can be read back
over the SPI interface.
It requires a minimum memory of 128 Mb with a speed grade of
200 MHz at CAS latency (CL) 3.
The recommended DDR2 memory compatible with the
ADV7850 include the MT47H32M16HR-25E:G from Micron
Technology, Inc.
TMDS OUTPUT
The ADV7850 incorporates a 297 MHz TMDS output. This
interface is designed to connect to any internal IC with an HDMI
or DVI input port.
OTHER FEATURES
The ADV7850 has one I2C host port interface.
The digital video interface contains an HDMI and a DVI 1.0-
compatible transmitter, and supports all HDTV formats up to 3D
1080p at 60 Hz and 2160p at 24 Hz. The ADV7850 transmitter
fully supports programmable AVI InfoFrames. With the inclusion
o f H D C P, t h e ADV7850 transmitter allows the secure transmission
of protected content as specified by the HDCP protocol. The
ADV7850 transmitter also fully supports EDID read operations.
The ADV7850 has two programmable interrupt request output
pins, INT1 and INT2. It also features a number of low power
modes and a full power-down mode. The ADV7850 contains an
internal power regulator to accommodate power-off mode. In
this mode, the ADV7850 is powered from the 5 V supply of the
HDMI/VGA cable connected to a source device or devices. In
this mode, EDID can be read over an HDMI/VGA DDC link.
The ADV7850 TMDS output supports the audio mode received
from the HDMI receiver, that is, PCM, HBR, DSD, and DST.
The ADV7850 is provided in a 19 mm × 19 mm, RoHS-compliant
CSP_BGA package and is specified over the −20°C to +70°C
temperature range.
EXTERNAL MEMORY REQUIREMENTS
The ADV7850 requires an external SDRAM for 3D comb and
frame TBC. The ADV7850 supports DDR2 memories.
For more detailed product information about the ADV7850,
contact your local Analog Devices sales office.
Rev. 0 | Page 27 of 32
ADV7850
Data Sheet
AUDIO OVERVIEW
AUDIO_L/R_1
AUDIO_L/R_2
AUDIO_L/R_3
AUDIO_L/R_4
AUDIO_L/R_5
5-CHANNEL
ADV7850
2
I S
EXTERNAL
INTERNAL
TO HDMI
STEREO
ADC
DAC
IMPEDANCE
IMPEDANCE
Tx BLOCK
INPUT
MATRIX
AUDIO
PLL
22kΩ
22kΩ
22kΩ
22kΩ
22kΩ
10.1kΩ
10.1kΩ
10.1kΩ
10.1kΩ
10.1kΩ
2.8 V rms INPUT
2.8 V rms INPUT
2.8 V rms INPUT
2.8 V rms INPUT
2.8 V rms INPUT
MUX OUTPUT
AC_MCLK
ADC
AUDIO_L/R_OUT
DAC_L/R_OUT
AC_SCLK
AC_LRCLK
AC_SDI
HP_L/R_OUT
Figure 11. Audio Block
The ADV7850 supports an audio codec comprising a stereo
ADC and a stereo DAC. A 5:1 stereo mux is placed in front of
the ADC input. The DAC output is available as a line level
output and is passed through an internal headphone amplifier.
The integrated headphone amplifier eliminates the need for an
external amplifier when driving headphones.
Figure 12. High Level Overview of Analog Audio Input/Output Configuration
ANALOG AUDIO MUX FUNCTIONALITY
A factory calibration is applied during final test to ensure that
the gain through the mux circuit remains within 5%. Calibra-
tion is also applied to the ADC reference current to ensure that
the code swing from the ADC remains within 5% across the
part for a given input. External impedances with a tolerance of
1% are required.
The ADV7850 has five stereo analog audio inputs and one
stereo analog output. Any one of the stereo inputs can be
connected to the stereo ADC, and any one of the inputs can be
connected to the stereo output. In the case of the analog output,
the ADV7850 also supports mono in-stereo output. The I/O
connectivity is shown in Table 9.
AUDIO CODEC FUNCTIONALITY
The ADV7850 audio codec requires an external MCLK.
For MCLK with a frequency of 6.144 MHz, 12.288 MHz,
or 24.576 MHz, the ADC and DAC sample rate is 48 kHz.
If the MCLK is reduced to 5.6448 MHz, 11.2896 MHz, or
22.5792 MHz, the ADC and DAC sample rate reduces to
44.1 kHz.
Table 9. Analog Audio Inputs to ADC and Analog Audio
Outputs Connection Capability
Mux Output
ADC Input
Mux Input
Left
Right
OK
OK
OK
OK
OK
OK
OK
OK
OK
OK
Left
OK
Right
Left
OK
OK
OK
OK
OK
OK
OK
OK
OK
OK
N/A
OK
1
Right
Left
N/A
OK
The bandwidth of the digital filter is sufficient so that 20 kHz
pass band is maintained in this mode. The 32 kHz sampling is
also possible but with pass-band reduction.
The system controller must set an I2C control to select the
correct mode of operation for the internal PLL so that it always
generates an internal MCLK of 6.144 MHz. A fixed oversample
rate of 128× is implemented.
N/A
OK
2
3
4
5
Right
Left
N/A
OK
N/A
OK
Right
Left
N/A
OK
N/A
OK
Right
Left
N/A
OK
N/A
OK
Right
N/A
The word depth of both the ADC and DAC is 24 bits. The ADC
and DAC have independent LRCLK and SCLK signals but use a
common MCLK.
The ADC supports I2S mode, providing LRCLK, SCLK, and I2S
signals. These signals are sent to the HDMI Tx and embedded
into the HDMI stream.
The DAC supports I2S mode. The LRCLK, SCLK, and data
signals must be provided by the back-end SOC and must be
frequency locked with the MCLK but can be phase independ-
ent. The output level is 1 V rms full scale.
The ADV7850 is designed to use a combination of internal and
external resistances. Measured from the system audio input
connector, the total nominal input impedance is 32.1 kΩ. All
analog system audio inputs are designed to support 2.8 V rms
audio input. Figure 12 shows a high level overview of the
implementation.
The input level at the analog audio input pins on the ADV7850
is 880 mV rms. However, the ADV7850 incorporates a gain
stage to restore the mux output level to 1.0 V rms. An external
line driver is required to restore the audio output signals to the
SCART specification of 2.8 V rms. Analog audio mux output
signals are inverted with respect to mux input signals.
There is one stereo headphone amplifier output capable of
driving 32 Ω loads at 1 V rms. The headphone output
incorporates circuitry to suppress pop/click sounds during
power-on/off cycle.
Rev. 0 | Page 28 of 32
Data Sheet
ADV7850
REGISTER MAP ARCHITECTURE
The registers of the ADV7850 are controlled via a 2-wire serial
(I2C-compatible) interface. The ADV7850 has 17 maps. The IO
map and HDMI Tx map has a static I2C addresses. All other
map addresses must be programmed. This ensures that no
address clashes on the system. Figure 13 shows the register map
architecture.
Table 5.
Register Map Name
Default Address
0x40
0xB8
0x00
0x00
0x00
0x00
0x00
0x00
0x00
0x00
0x00
0x00
0x00
0x00
0x00
0x00
Programmable Address
Not programmable
Not programmable
Programmable
Programmable
Programmable
Programmable
Programmable
Programmable
Programmable
Programmable
Programmable
Programmable
Programmable
Programmable
Programmable
Programmable
Programmable
Location at Which Address Can Be Programmed
Not applicable
Not applicable
IO Map
HDMI Tx Map
VDP Map
IO map, Register 0xFE
IO map, Register 0xFD
IO map, Register 0xFB
IO map, Register 0xFA
IO map, Register 0xF9
IO map, Register 0xF8
IO map, Register 0xF5
IO map, Register 0xF2
IO map, Register 0xF1
IO map, Register 0xF0
IO map, Register 0xEF
IO map, Register 0xEC
IO map, Register 0xEB
IO map, Register 0xE7
IO map, Register 0xE3
CP Map
HDMI Rx Map
HDMI Rx EDID Map
KSV Map
AFE Map
InfoFrame Map
SDP_IO Map
SDP Map
HDMI Tx EDID Map
Tx UDP Map
VFE
Memory Map
Audio Codec Map
Tx TEST Map
0x00
IO
MAP
HDMI Tx
MAP
VDP
MAP
CP
MAP
HDMI Rx
MAP
HDMI Rx EDID
MAP
KSV
MAP
SLAVE
ADDRESS:
0x40
SLAVE
ADDRESS:
0xB8
SLAVE
SLAVE
SLAVE
SLAVE
SLAVE
ADDRESS:
ADDRESS:
ADDRESS:
ADDRESS:
ADDRESS:
PROGRAMMABLE PROGRAMMABLE PROGRAMMABLE PROGRAMMABLE PROGRAMMABLE
SCL
SDA
SLAVE
SLAVE
SLAVE
SLAVE
SLAVE
ADDRESS:
ADDRESS:
ADDRESS:
ADDRESS:
ADDRESS:
PROGRAMMABLE PROGRAMMABLE PROGRAMMABLE PROGRAMMABLE PROGRAMMABLE
AFE
MAP
INFOFRAME
MAP
SDP_IO
MAP
SDP
MAP
HDMI Tx EDID
MAP
SLAVE
SLAVE
SLAVE
SLAVE
SLAVE
ADDRESS:
ADDRESS:
ADDRESS:
ADDRESS:
ADDRESS:
PROGRAMMABLE PROGRAMMABLE PROGRAMMABLE PROGRAMMABLE PROGRAMMABLE
Tx UDP
MAP
VFE
MAP
MEMORY
MAP
AUDIO CODEC
MAP
Tx TEST
MAP
Figure 13. Register Map Architecture
Rev. 0 | Page 29 of 32
ADV7850
Data Sheet
OUTLINE DIMENSIONS
19.20
A1 BALL
CORNER
19.00 SQ
18.80
22 20 18 16 14 12 10
23 21 19 17 15 13 11
8
6
4
2
A1 BALL
CORNER
9
7
5
3
1
A
C
E
G
J
B
D
F
H
K
M
P
T
17.60
BSC SQ
L
N
R
U
W
0.80
BSC
V
Y
AA
AB
AC
TOP VIEW
DETAIL A
BOTTOM VIEW
DETAIL A
1.50
1.36
1.21
1.11
1.01
0.91
0.65
NOM
0.35 NOM
0.30 MIN
0.35
NOM
0.50
0.45
0.40
COPLANARITY
0.12
SEATING
PLANE
BALL DIAMETER
COMPLIANT TO JEDEC STANDARDS MO-275-PPAB-2.
Figure 14. 425-Ball Chip Scale Package Ball Grid Array [CSP_BGA]
(BC-425-1)
Dimensions shown in millimeters
ORDERING GUIDE
Model1
Notes Temperature Range
Package Description
Package Option
2, 3
ADV7850KBCZ-5
EVAL-ADV7850EBZ
−20°C to +70°C
425-Ball Chip Scale Package Ball Grid Array [CSP_BGA]
Low Cost, Blackfin-Based Evaluation Board with ADV7850
(with HDCP keys)
ADV7850 Evaluation Board with Complete Audio Support
(with HDCP Keys)
BC-425-1
3
3
EVAL-ADV7850EB1Z
1 Z = RoHS Compliant Part.
2 Speed grade: 5 = 170 MHz.
3 This part is programmed with internal HDCP keys. Customers must have HDCP adopter status (consult Digital Content Protection, LLC, for licensing requirements) to
purchase any components with internal HDCP keys.
Rev. 0 | Page 30 of 32
Data Sheet
NOTES
ADV7850
Rev. 0 | Page 31 of 32
ADV7850
NOTES
Data Sheet
©2012 Analog Devices, Inc. All rights reserved. Trademarks and
registered trademarks are the property of their respective owners.
D07758-0-5/12(0)
Rev. 0 | Page 32 of 32
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