M65849 [MITSUBISHI]
SINGLE CHIP SURROUND PROCESSOR; 单芯片环绕声处理器
| 型号： | M65849 |
| 厂家： | 
Mitsubishi Group |
| 描述： | SINGLE CHIP SURROUND PROCESSOR |
| 文件： | 总15页 (文件大小：86K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
MITSUBISHI SOUND PROCESSOR ICs
SER I ES
SER I ES
50
M65849BFP
SINGLE CHIP SURROUND PROCESSOR
DESCRIPTION
The M65849BFP is a CMOS IC built-in Digital circuit and mixing amplifiers.
It is suitable for adding effects to Mini Stereo, CD-Radio Cassette and TV.
This COMS IC can be used dolby surround.
PIN CONFIGURATION
FEATURES
1
2
32
31
30
29
28
27
26
25
24
23
22
21
20
19
18
17
MCLKCONT
TEST1
MVOL IN
MIC IN
NC
•Built-in digital delay , mixing amplifiers,input output selector
achieve a surround system with a single chip .
•Delay volume , feedback volume Built-in
•ADM digital delay ,16kbit SRAM Built-in
•Selection of delay time in a range between 9.2msec and
196.6msec 8 increments.
•32 pin SSOP package (32P2U-B)
•Built-in automatic reset circuit activated with power on
•5V single power supply
3
CLOCK
LATCH
DATA
4
Lch IN
5
Rch IN
6
DELAY OUT
ADCONT
DACONT
Vcc
7
Lch OUT
Rch OUT
REF
8
DELAYSOURCE
OUT
9
10
11
12
13
14
15
16
TEST OUT
LPF1IN1
LPF1IN2
LPF1OUT
ADINTIN
ADINTOUT
GND
MIC OUT
FVOL IN
LPF2OUT
LPF2IN2
LPF2IN1
DAINTOUT
DAINTIN
RECOMMENDED OPERATING CONDITION
•Supply voltage range...................Vcc=4.5 ~ 5.5V
Rated supply voltage.................Vcc=5V
SYSTEM CONFIGURATION
MIX AMP
INPUT
SEL
OUTPUT
SEL
L ch OUT
L ch
IN
I(L+R)
O(NORMAL)
DIGITAL
DELAY/ECHO
MIX
VOLUME
O(L+R)
O(L-R)
MIC OUT
SW
I(L-R)
I(MIC)
MIC amp
ALC
O(ECHOMIX)
MIC
FEEDBACK
VOLUME
MIC IN
MIC OUT
R ch OUT
MIX AMP
R ch
IN
M 6 5 8 4 9 B F P
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MITSUBISHI SOUND PROCESSOR ICs
SER I ES
SER I ES
50
M65849BFP
SINGLE CHIP SURROUND PROCESSOR
Block Diagram
32
29
28
27
24
18
26
25
23
22
21
20
31
30
19
17
NC
1/2Vcc
MIC OUT
SW
INPUT
SEL
D/A
LPF
I(MIC)
I(L+R)
I(L-R)
O(NORMAL) O(L+R)
O(L-R)
O(ECHOMIX)
F.B
VOL
16kSRAM
OUTPUT
SEL
-1
MIX
VOL
MAIN LOGIC
A/D
MCLK
LPF
12
µ - COM I/F
Vcc
TEST OUT
10
TEST1
2
GND
16
7
8
9
14
15
1
3
4
5
6
11
13
:Schmitt Trigger Buffer
NC :Nonconnect(This terminal can use relay terminal)
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ELECTRIC
MITSUBISHI SOUND PROCESSOR ICs
SER I ES
SER I ES
50
M65849BFP
SINGLE CHIP SURROUND PROCESSOR
Pin Description
No.
1
Symbol
Name
Oscillator Input
Test pin
Function
I/O
Controls builts-in clock generation circuit
with external R
MCLKCONT
I
I
Test mode change "H" Normal / "L" Test
(Be sure connect to Vcc at Normal mode)
2
TEST1
CLOCK
LATCH
DATA
3
4
5
6
Clock input via serial bas
Latch input via serial bas
Data input via serial bas
Decide the time constant of A/D
Decide the time constant of D/A
CLOCK
I
I
I
LATCH
DATA
AD CONT
DA CONT
Vcc
A/D Control
7
8
D/A Control
Power Supply
Delay source output
Test output
DELAYSOURCE
OUT
(L+R) or( L-R) or (MIC) signal Output
9
O
O
I
Memory /Mute /Sampling Data Output (Test mode)
(Be sure to open at Normal mode)
TEST OUT
LPF1 IN 1
LPF1 IN 2
LPF1 OUT
AD INT IN
AD INT OUT
GND
10
11
12
Low Pass Filter 1 Input 1
Prefilter placed before A/D convertor for
digital delay
Low Pass Filter 1 Input 2
Low Pass Filter 1 Output
A/D Integrator Input
A/D Integrator Output
GND
I
O
I
13
14
To form D/A convertor Integrator by connecting
external capacitor
15
16
O
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MITSUBISHI SOUND PROCESSOR ICs
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M65849BFP
SINGLE CHIP SURROUND PROCESSOR
No.
Function
Symbol
I/O
Name
I
DAINT IN
D/A Integrator Input
17
18
Form Integrator With External C
O
I
DAINT OUT
LPF 2 IN 1
LPF 2 IN 2
LPF 2 OUT
FVOL IN
D/A Integrator Output
Low Pass Filter 2 Input1
Low Pass Filter 2 Input 2
Low Pass Filter 2 Output
Feedback Volume Input
Microphone Output
Reference
19
20
21
22
23
24
I
Form Low Pass Filter With External C,R
O
I
Feedback Volume Input
Microphone Output
MIC OUT
REF
O
1/2 Vcc Output , Connect External C
Rch Mixing Output
O
O
Rch Output
Rch OUT
Lch OUT
DELAYOUT
Rch IN
25
26
27
28
29
30
31
32
Lch Mixing Output
Lch Output
O
I
Delay Signal Output
Rch Input
DELAY Output
Rch Input
I
Lch Input
Lch Input
Lch IN
NC
This terminal can use relay terminal for external
Nonconnect
Microphone Input
Mix Volume Input
I
Microphone Input
Mix Volume Input
MIC IN
MVOL IN
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M65849BFP
SINGLE CHIP SURROUND PROCESSOR
Operation Mode Settings.
Operation mode is controlled by the 16-bit serial data inputted in accordance with
the following timing.
• The (DATA is reading at the rising edge of the CLOCK and the last 16-bits
are loaded at the rising edge of the LATCH.
LATCH
4
3 CLOCK
5 DATA
D0 D1 D2 D3 D4 D5 D6 D7 D8 D9 D10 D11 D12 D13 D14 D15
Control
Control Explanation
Block
Data No.
D0
D1
D2
D3
D4
There are 8 kinds of Delay Time which are
from 9.2ms to 196.6ms.
DELAY TIME
This is the input selector which selects (CLOCKOFF),(L+R),
(L-R) or( MIC).
INPUT
SELECTOR
D5
D6
D7
This is the output selector which selects (L+R),(L-R),
(ECHOMIX) or (NORMAL).
OUTPUT
SELECTOR
MICOUT SW
This is the ON/OFF switch for the Microphone signal.
D8
There are 8 kinds of ATT. level which are from +3dB to
-15dB,- dB(3dB step).
D9
MIX VOL
D10
D11
D12
D13
D14
D15
FEED
BACK
Vcc
There are 8 kinds of ATT. level which are from -3dB
to -15dB,- dB(2dB step).
D14=(L),D15=(H)DATA Load,the others cancel.
ADDRESS
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M65849BFP
SINGLE CHIP SURROUND PROCESSOR
Description of Control
Delay Time Control
The Cut Off
Frequency
of LPF
CONTROL DATA
DELAY TIME
D0 D1 D2
L
H
L
L
L
9.2msec
15.4msec
21.5msec
L
L
7.3kHz
H
H
L
L
H
L
L
28.7msec
49.2msec
98.3msec
147.5msec
H
H
H
H
H
L
L
H
H
3.1kHz
H
196.6msec
Input Selector Control
Output Selector Control
Control Data
Control Data
INPUT SELECTOR
OUTPUT SELECTOR
D3 D4
D5 D6
I(L+R)
I(L-R)
L
L
L
L
O(L+R)
H
L
L
H
L
L
O(L-R)
O(ECHOMIX)
H
H
I(MIC)
H
H
I(CLKOFF)
O(NORMAL)
H
H
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M65849BFP
SINGLE CHIP SURROUND PROCESSOR
Microphone Output
Switch Control
Control Data
MICOUT
SWITCH
D7
SW OFF
SW ON
L
Feedback volume Control
H
Control Data
FEEDBACK
VOLUME
D11 D12 D13
-3dB
-5dB
-7dB
L
H
L
L
L
Mix volume Control
L
L
Control Data
MIX VOLUME
H
H
L
L
D8 D9 D10
H
L
L
-9dB
+3dB
0dB
L
H
L
L
L
-11dB
H
H
H
H
L
L
-13dB
-15dB
-
H
L
L
-3dB
H
H
L
L
H
H
H
L
L
-6dB
-9dB
-12dB
-15dB
-
H
H
H
H
H
H
L
L
Address Control
H
H
Control Data
ADDRESS
H
D14 D15
L
H
L
L
L
DATA CANCEL
DATA LOAD
H
H
H
DATA CANCEL
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MITSUBISHI SOUND PROCESSOR ICs
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M65849BFP
SINGLE CHIP SURROUND PROCESSOR
Construction of Diagram
Lch
in
29
Lch
polar
non -
polar
non -
21
22
32
27
out
26
+
(ECHOMIX)
OUTPUT
SEL
DELAY
INPUT
SEL
MIX
MIC
out
O(NORMAL)
MIC OUT
SW
VOL
I(L+R)
-1
O(L+R)
O(L-R)
23
+
31
MIC
in
I(MIC)
I(L-R)
FB
VOL
+
25
28
9
11
Rch
out
Rch
in
polar
non -
M 6 5 8 4 9 B F P
•DELAY TIME
There are 8 kinds of Delay Time which are from 9.6ms to 196.6ms.
•FEEDBACK VOLUME
There are 8 kinds of ATT. level which are from -3dB to -15dB,- dB.
•MIX VOLUME
There are 8 kinds of ATT. level which are from +3dB to -15dB,- dB.
•INPUT SELECTOR
This is the input selector which selects (CLOCKOFF),(L+R),(L-R)or (MIC).
•OUTPUT SELECTOR
This is the output selector which selects (L+R),(L-R),(ECHOMIX), (NORMAL).
•MIC SWITCH
This is the ON/OFF switch for the Microphone signal.
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M65849BFP
SINGLE CHIP SURROUND PROCESSOR
The Power On Reset
When the IC is supplied Vcc, the reset circuit is on and after about 120ms (Vcc=5V C 24 =47µF) the
reset circuit is off automatically.
The conditions are as follows.
D0 D1 D2 D3 D4 D5 D6 D7 D8 D9 D10 D11 D12 D13 D14 D15
L
L
L
L
H
L
L
L
H
H
H
H
H
H
L
H
MICSW
DATA LOAD
9.2ms
I(L+R) NORMAL OFF
-¥
-¥
*1 The Reset Time
The reset time depends on the external C of 24 pin and the time can be calculated
as follows.
The Reset Time (mS)=2.5 x c (mS)
Ex.)
In The Case Of c=47µF
The Reset Time 2.5 x 47=117.5 (mS)
Clock oscillator circuit
This IC incorporates a current control type clock oscillator circuit in it, thus providing circuit
configuration just by connecting an Rc for current control pin 1 (MCLKCONT).
Fully internal clock supply prevents occurrence of undesired radiation without affecting any
external circuit.
The oscillator frequency fck is following.
fck=4MHz(Rc=22kW)
DC Current
Clock
oscillator
circuit
1
Rc
Clock frequency:fck
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M65849BFP
SINGLE CHIP SURROUND PROCESSOR
The Auto Muting
The auto muting is active upon the power-on and the changing delay time for rejecting the
shock noise.
•Upon Power-on
Reset Time
Mute Time
Cancel
Reset
Cancel
Mute
Power
On
•Upon Changing Delay Time
Delay Signal After
Change Mode
Delay Signal Before
Change Mode
Mute Time
Cancel Mute
The Mute Time is set by Delay Time as follows.
MUTE TIME
DELAY TIME
Typ.
410 ms
9.2 ~ 196.6 ms
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MITSUBISHI SOUND PROCESSOR ICs
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M65849BFP
SINGLE CHIP SURROUND PROCESSOR
The LPF Of The Input & Output Stage Of The Digital Delay
The circuit of the LPF is as follows.
C2
C1,C2:External C
C1
10kW
SD
Internal of IC
11 or 19 pin
12 or 20 pin
13 or 21 pin
SD
LD
10kW
10kW
LAD
SD
LD
24kW
-
INPUT
OUTPUT
24kW
+
24kW
The accuracy of the internal resisters are about ±30%.
DELAY TIME
S
W
SD
9.2 ~ 49.2 ms
98.3 ~ 196.6 ms
(SHORT DELAY)
LD
(LONG DELAY)
The cut off frequency is calculated by the following formulas.
*
•Surround
1
fc=
2 x10kWx
C1xC2
C1xC2
•Echo
1
fc=
2 x24kWx
The quality factor (Q) is as follows under the conditions of both Short Delay & Long Delay.
C1
C2
1
3
Q=
At all the cut off frequency is decided by the external C.
We recommend C1=0.0047µF and C2=0.001µF.
Under this condition, fc and Q are as follows.
Surround
Echo
fc=7.3kHz
fc=3.1kHz
Q=0.72
* The Cut Off Frequency of LPF means the cut off frequency of the each stage (A/D & D/A)
and doesn't mean the total cut off frequency.
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M65849BFP
SINGLE CHIP SURROUND PROCESSOR
Absolute Maximum Ratings
No.
Parameter
Supply voltage
Circuit Current
Conditions
Ratings
Units
Vcc
Icc
V
6.5
50
mA
mW
Power dissipation
Pd
Topr
Tstg
325
Operating Temperature
-20 ~ +75
-40 ~ +125
°C
°C
Storage temperature
Recommended Operating Conditions
Limits
No.
Parameter
conditions
Units
Typ.
Min.
Max.
Supply Voltage
V
V
4.5
5.0
5.5
Vcc
VIH
5
5
3
3
4
4
Vcc
High Input Voltage
2.4
VIL
fck
Low Input Voltage
CLOCK Frequency
0
3
0.8
5
V
MHz
4
Thermal Derating
1000
800
600
460
400
200
0
0
25
50
75 100 125
Ambient Temperature Ta (°C)
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M65849BFP
SINGLE CHIP SURROUND PROCESSOR
Electrical Characteristics
(Ta=25°C,Vcc=5V,f=1kHz,Vi=200mVrms,fck=4MHz Unless Otherwise Noted)
Limits
Units
Symbol
Parameter
Conditions
Min.
Typ.
Max.
No Signal
Circuit Current
Total
Icc
32
70
mA
7.8
13.1
18.3
24.5
41.8
83.6
9.2
10.6
17.7
24.7
33.0
56.6
15.4
21.5
28.7
49.2
Refer to
Delay time Control
Delay Time
Td
ms
dB
%
98.3 113.0
125.4 147.5 169.6
167.1 196.6 226.1
Voltage Gain
Gv
-3
3
0
Td = 9.2ms
Td = 15.4ms
Td = 21.5ms
Td = 28.7ms
30kHz LPF
30kHz LPF
30kHz LPF
30kHz LPF
0.3
0.3
0.3
0.5
0.7
1.0
1.5
0.6
0.6
0.6
1.0
1.4
Output
Distortion
THD
Td = 49.2ms
Td = 98.3ms
Td =147.5ms
30kHz LPF
30kHz LPF
30kHz LPF
2.0
3.0
4.0
30kHz LPF
Td = 196.6ms
30kHz LPF
2.0
1.0
Maximum
Vrms
dBV
Vo max
Output Voltage THD = 10 %
0.7
Rg=620W
JIS-A
Td = 9.2ms
Vi = 0mVrms
-92
-92
-92
-90
-90
-87
-82
-77
-80
-80
-80
-75
-75
-72
-70
-62
Rg=620W
JIS-A
Td = 15.4ms
Vi = 0mVrms
Rg=620W
JIS-A
Td = 21.5ms
Vi = 0mVrms
Rg=620W
JIS-A
Td = 28.7ms
Vi = 0mVrms
Output
Noise Voltage
No
Rg=620W
JIS-A
Td = 49.2ms
Vi = 0mVrms
Rg=620W
JIS-A
Td = 98.3ms
Vi = 0mVrms
Rg=620W
JIS-A
Td =147.5ms
Vi = 0mVrms
Td =196.6ms
Vi=0mVrms
Rg=620W
JIS-A
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MITSUBISHI SOUND PROCESSOR ICs
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50
M65849BFP
SINGLE CHIP SURROUND PROCESSOR
(Ta=25°C,Vcc=5V,f=1kHz,Vi=200mVrms,fck=4MHz Unless Otherwise Noted)
Limits
Typ.
Units
No.
Conditions
Parameter
Max.
Min.
FB
VOL -6
0
6
-3
3
Volume max
Voltage Gain
Mix
VOL
Gv
dB
dB
0
Volume min
JIS-A
Maximum ATT.
Output Distortion
ATTMAX
THD
-70
0.15
1.4
-60
Volume max
30kHz LPF
RL=47kW
0.30
%
Volume max
30kHz LPF
RL=47kW
Maximum
Output Voltage
THD=10%
Vomax
Vrms
1.1
Volume max
JIS-A
Rg=620W
Output
Noise Voltage
No
-98
dBV
mV
-90
Mix Volume +3dB-0dB
voltage (3dB,0dB)
Offset Voltage
Voltage Gain
Output Distortion
Voff
Gv
±1.6
3
-3
0
dB
%
30kHz LPF
THD
Vomax
No
0.01
0.03
RL = 10kW
30kHz LPF
THD=10 %
Maximum
Output Voltage
Vrms
1.2
1.8
-98
DELAYOFF MODE
Rg=620W
Output
Noise Voltage
dBV
dB
-90
-60
JIS-A
DMIXSW OFF
Channel Separation
Input Impedance
LchIN
f=400Hz
RchOUT
JIS-A
CS
-90
30
Zi
kW
21
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M65849BFP
SINGLE CHIP SURROUND PROCESSOR
The Application Example
0.15µ
0.001µ
100µ
+
0.22µ
0.068µ
2.2µ
+
2.2µ
+
2.2µ
0.0047µ
1µ
+
1µ
1µ
+
+
*
32
29
28
27
24
26
25
23
22
21
20
31
30
18
19
17
NC
1/2Vcc
MIC OUT
SW
INPUT
SEL
D/A
LPF
I(L+R)
I(MIC)
I(L-R)
O(ECHOMIX)
O(NORMAL) O(L+R)
O(L-R)
F.B
16kSRAM
VOL
OUTPUT
SEL
-1
MIX
VOL
MAIN LOGIC
A/D
MCLK
LPF
12
µ-COM I/F
Vcc
TEST OUT
TEST1
2
GND
16
7
14
15
9
4
5
6
8
11
13
10
1
3
*
0.1µ
*
*
0.1µ
0.068µ
µ-COM
0.001µ
GND
22K
0.0047µ
0.22µ
Vcc
100µ
0.1µ
The condensers of the "*" mark are recommended
less than ±5% relative accuracy.
Units: Resistor:W
Condenser:F
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