STMAV335 [STMICROELECTRONICS]
Low ON Resistance Triple, SP3T, Wide-Bandwidth Video Switch; 低导通电阻三重， SP3T ，宽带宽视频开关
| 型号： | STMAV335 |
| 厂家： | 
ST |
| 描述： | Low ON Resistance Triple, SP3T, Wide-Bandwidth Video Switch |
| 文件： | 总21页 (文件大小：1139K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
STMAV335
Low ON Resistance Triple, SP3T, Wide-Bandwidth Video Switch
Features
■ Bi-directional operation
■ 3x3 input/3output channels analog video
switch
■
■
■
Wide bandwidth 300MHz
Low 4Ω switch resistance between two ports
Excellent R matching between channels
ON
TSSOP16
■
■
■
Minimal propagation delay through the switch
Low quiescent current consumption
V
Operating Range: 4.0V to 5.5V
CC
Description
■
■
Zero bounce in flow-through mode
The STMAV335 is a bi-directional triple (3
channel) Single Pole/Triple Throw (SP3T) high-
speed, low-power CMOS TTL-compatible analog
video switch designed for advanced video
Control inputs compatible with TTL level
■ Data and control inputs provide the undershoot
clamp diode
applications which demand
quality. The low ON Resistance (R ) of the
switch allows inputs to be connected to outputs
without adding propagation delay or generating
additional ground bounce noise.
superior image
■ High ESD rating: > 2kV HBM
ON
■ –40°C to 85°C operating temperature range
■ Suitable for both RGB and Component-Video
Switching
■ Available in a small TSSOP16 package
STMAV335 is designed for very low cross-talk,
low bit-to-bit skew, high channel-to-channel noise
isolation and low I/O capacitance. The switch
offers very little or practically no attenuation of the
high-speed signals at the outputs, thus preserving
the signal integrity to pass stringent requirements.
Applications
■ Advanced TVs
■
■
■
■
Front projectors
LCD Monitors
Notebook PCs
DVD Players
Moreover the device reduces the overall BOM
costs by eliminating the need for more costly multi
input-output controllers.
Order Codes
Part Number
Temperature Range
Package
Comments
STMAV335
–40°C to +85°C
TSSOP16
STMAV335TTR
Rev. 1
1/21
January 2006
www.st.com
21
STMAV335
Contents
1
Summary Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
1.1
Functional Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
2
3
Pin Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
Application Diagrams . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
3.1
Power Supply Sequencing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
4
5
6
7
8
9
Maximum Ratings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
Electrical Characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
AC Loading and Diagrams . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Test Circuits . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
Package Mechanical Data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
Revision History . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
2/21
STMAV335
1 Summary Description
1
Summary Description
1.1
Functional Description
The STMAV335 is a high bandwidth analog video switch. Its low ON-resistance and low I/O
capacitance result in a very small propagation delay.
The combination of SEL1 and SEL2 is used to either disable or enable the desired video
channel. Refer to the truth table for the selection of the appropriate channels.
Figure 1.
Functional Diagram
3/21
2 Pin Configuration
STMAV335
2
Pin Configuration
Figure 2. Pin Configuration (Top View )
Table 1.
Pin Description
Symbol
Type
Name and Functions
Bus Switch Enable. Tie to V through a pull-up resistor. The
CC
SEL1, SEL2
IN
minimum value of the resistor is determined by the current-sinking
capability of the driver.
Y/R, Pb/G, Pr/B
Y1, Pb1, Pr1
Y2, Pb2, Pr2
R, G, B
IN/OUT
IN/OUT
IN/OUT
IN/OUT
Analog Video I/Os
Component 1; Analog Video I/Os
Component 2; Analog Video I/Os
RGB or Component 3; Analog Video I/Os
Power supply
V
CC
GND
Ground
Table 2.
Truth Table
SEL1
SEL2
Selection
0
0
1
1
0
1
0
1
Component = YPbPr1
Component = YPbPr2
Component = RGB
Switch disabled; external pull up resistor recommended
4/21
STMAV335
3 Application Diagrams
3
Application Diagrams
Figure 3. STMAV335 used in LCD TV as a 3-to-1 analog video switch
Figure 4. STMAV335 used in PC as a 1-to-3 analog video switch
3.1
Power Supply Sequencing
Proper power-supply sequencing is advised for all CMOS devices. It is recommended to
always apply V before applying any signals to the input/output or control pins.
CC
5/21
4 Maximum Ratings
STMAV335
4
Maximum Ratings
Stressing the device above the rating listed in the “Absolute Maximum Ratings” table may
cause permanent damage to the device. These are stress ratings only and operation of the
device at these or any other conditions above those indicated in the Operating sections of this
specification is not implied. Exposure to Absolute Maximum Rating conditions for extended
periods may affect device reliability. Refer also to the STMicroelectronics SURE Program and
other relevant quality documents.
Table 3.
Absolute Maximum Ratings
T = 25°C, V = 0V
A
SS
Symbol
Parameter
Value
Unit
V
Supply Voltage
-0.5 to + 7.0
-0.5 to + 7.0
-0.5 to + 7.0
-50
V
V
CC
V
DC Switch Voltage
DC Input Voltage
DC Input Diode Current
S
V
V
IN
I
mA
mA
mA
°C
IK
I
DC Output Sink Current
128
OUT
I
/I
DC V /GND Current
±100
CC GND
CC
T
Storage Temperature Range
-65 to 150
STG
Note:
Absolute maximum ratings are those values above which damage to the device may occur.
Functional operation under these conditions is not implied. All voltages are referenced to GND.
6/21
STMAV335
5 Electrical Characteristics
5
Electrical Characteristics
Table 4.
Recommended Operating Conditions
T = -20 to +70°C, V = 0V
A
SS
Symbol
Parameter (Note 1)
Test Conditions
Min.
4.0
0
Typ.
Max.
5.5
Unit
V
V
Power Supply Voltage
Input Voltage
CC
V
5.5
V
IN
V
Output Voltage
0
0
5.5
5
V
OUT
Switch Control Input
Switch I/O
ns/V
ns/V
°C
t t
Input Rise and Fall Time
r, f
0
DC
+85
T
Free Air Operating Temperature
-40
A
V
ESD-Human Body Model (HBM) Note 2
-2
+2
kV
ESD
Note: 1 Unused control inputs must be held HIGH or LOW. They should not float.
2 In accordance with IEC61000-4-2, level 4
Table 5.
DC Electrical Characteristics
T = -40°C to +85°C
A
V
(V)
Symbol
Parameter
Test Conditions
Min.
Typ.
Max.
Unit
CC
Analog Signal Range
Clamp Diode Voltage
HIGH Level Input Voltage
LOW Level Input Voltage
Input Leakage Current
5
0
2.0
V
V
V
I
= -18mA
4.5
-1.2
IK
IN
V
4.0-5.5
4.0-5.5
5.5
2.0
V
IH
V
0.8
V
IL
I
0 ≤ V ≤ 5.5V
±10
µA
I
IN
0 ≤ Y/R, Pb/G, Pr/B YX ≤ V
PbX ≤ V , PrX ≤ V
,
CC
OFF-STATE Leakage
Current
I
5.5
±10
µA
CC
CC
OFF
R ≤ V , G ≤ V , B ≤ V
CC
CC
CC
V
V
V
= 1.0V, I = 13mA
4.5
4.5
5.5
3
7
7
10
3
Ω
Ω
IN
IN
IN
ON
R
Switch ON resistance (1)
ON
= 2.0V, I = 26mA
ON
I
= V or GND, I
= 0
Quiescent Supply Current
µA
CC
CC
OUT
One input at 3.4V
Other inputs at V or GND
Increase in I per Input
5.5
2.5
mA
∆I
CC
CC
CC
Note: 1 Measured by the voltage drop between Y/R, Pb/G, Pr/B and YX/R, PbX/G, PrX/B pins at the
indicated current through the switch. ON Resistance is determined by the lower of the voltages
on the two.
7/21
5 Electrical Characteristics
STMAV335
Table 6.
Symbol
AC Electrical Characteristics
T = -40°C to +85°C, C = 20pF, RU = RD = 75Ω
A
L
V
= 4.5 - 5.5V
V
= 4.0V
Unit
CC
CC
Parameter
Test conditions
Min. Typ. Max. Min. Max.
Output Enable Time Select to Bus YX/
R, PbX/G, PrX/B
5.2
5.1
5.2
5.5
5.7
5.6
5.5
5.5
V = 7V for t
I
PZL
t
, t
ns
PZH PZL
Output Enable Time Select to Bus Y/R, V = OPEN for t
Pb/G, Pr/B
I
PHZ
Output Disable Time Select to Bus YX/
R, PbX/G, PrX/B
V = 7V for t
I
PLZ
t
, t
ns
PHZ PLZ
Output Disable Time, Output Enable
time OE_N to Bus A, B/C
V = OPEN for t
I
PHZ
R = 150Ω
L
B
-3dB Bandwidth
300
MHz
W
T = 25°C
A
R
= 10Ω
IN
X
Crosstalk
-58
0.64
0.1
dB
%
TALK
R = 150Ω, 10 MHz
L
R = 150Ω
L
D
Differential Gain
Differential Phase
OFF Isolation
G
f = 3.58 MHz
R = 150Ω
L
D
Deg.
dB
P
f = 3.58 MHz
R = 150Ω
L
P
-60
IRR
10 MHz
Table 7.
Capacitance
T = 25°C, f = 1MHz
A
Symbol
Parameter
Test Conditions
Min.
Typ.
Max.
Unit
C
V
V
= 5.0V
Control Pin Input Capacitance
3
pF
IN
CC
Input/Output Capacitance
Port: Y/R, Pb/G, Pr/B
7
5
pF
pF
, SEL1,
CC
C
I/O
Input/Output Capacitance
Port: YX/R, PbX/G, PrX/B
SEL2 = 5.0 V
V
= 5.0V,
CC
C
Switch On Capacitance
12
pF
ON
Except
SEL1,SEL2=5.0
8/21
STMAV335
6 AC Loading and Diagrams
6
AC Loading and Diagrams
Figure 5. AC Test Circuit
Figure 6. AC Waveforms
9/21
7 Test Circuits
STMAV335
7
Test Circuits
Figure 7. Test Circuit to measure the on-resistance of the switch
10/21
STMAV335
7 Test Circuits
Figure 8. Enable/Disable Circuit and Timing Diagram
Table 8.
Test
Test Circuit
V
R
C
V
V
V
CC
L
L
Y1
Pb1
Pr1
GND
GND
GND
V
4.75V ± 0.75V
4.75V ± 0.75V
4.75V ± 0.75V
75
75
75
20
20
20
CC
Enable time
(tpZL, tpZH)
V
GND
GND
CC
V
GND
GND
CC
GND
GND
V
4.75V ± 0.75V
4.75V ± 0.75V
4.75V ± 0.75V
75
75
75
20
20
20
CC
Disable Time
(tpLZ, tpHZ)
V
GND
GND
CC
V
GND
CC
Note: 1 CL includes probe and jig capacitance.
2 All input pulses are supplied by generators having the following characteristics: PRR ≤ 10MHz,
ZO = 50Ω, tr, tf = 2.5ns.
3 The outputs are measured one at a time, with one transition per measurement.
11/21
7 Test Circuits
STMAV335
Differential gain and phase are measured at the output of the ON channel. For example, when
SEL1, SEL2 = 0 and Y is the input, the output is measured at Y1.
Figure 9. Differential Gain/Phase Measurement Test Circuit
12/21
STMAV335
7 Test Circuits
Frequency response is measured at the output of the ON channel. For example, when
SEL1,SEL2 = 0, and Y is the input, the output is measured at Y1. All unused analog I/O ports
are left open.
Figure 10. Test Circuit for frequency response (BW)
13/21
7 Test Circuits
STMAV335
Crosstalk is measured at the output of the non-adjacent ON channel. For example, when
SEL1,SEL2 = 0, and Y is the input, the output is measured at Pb1. All unused analog input
ports (Pb,Pr) and output ports (PbX,PrX) are connected to GND through 10Ω and 50Ω pull-
down resistors respectively.
Figure 11. Crosstalk Test Circuit
Note:
50Ω termination resistor is needed for the network analyzer.
14/21
STMAV335
7 Test Circuits
Off-Isolation is measured at the output of the OFF channel. For example, when SEL1=0,
SEL2=V , and Y is the input, the output is measured at Y1. All unused analog input ports are
CC
left open, and output ports are connected to GND through 50Ω pull-down resistors.
Figure 12. Off-Isolation Test Circuit
Note:
50Ω termination resistor is needed for the network analyzer.
15/21
7 Test Circuits
STMAV335
Figure 13. ESD protection circuit for Input side of I/O pin
Figure 14. ESD protection circuit for Output side of I/O pin
Figure 15. ESD protection circuit for SEL1, SEL2 inputs
16/21
STMAV335
8 Package Mechanical Data
8
Package Mechanical Data
®
In order to meet environmental requirements, ST offers these devices in ECOPACK
packages. These packages have a Lead-free second level interconnect . The category of
second Level Interconnect is marked on the package and on the inner box label, in compliance
with JEDEC Standard JESD97. The maximum ratings related to soldering conditions are also
marked on the inner box label. ECOPACK is an ST trademark. ECOPACK specifications are
available at: www.st.com.
17/21
8 Package Mechanical Data
STMAV335
TSSOP16 MECHANICAL DATA
mm
inch
TYP.
DIM.
MIN.
TYP.
MAX.
1.1
MIN.
MAX.
0.433
0.006
0.374
0.0118
0.0079
0.201
0.256
0.176
A
A1
A2
b
0.05
0.85
0.19
0.09
4.9
0.10
0.9
0.15
0.95
0.30
0.20
5.1
0.002
0.335
0.0075
0.0035
0.193
0.246
0.169
0.004
0.354
c
D
E
5
6.4
0.197
0.252
6.25
4.3
6.5
E1
e
4.4
4.48
0.173
0.65 BSC
4o
0.0256 BSC
4o
K
0o
8o
0o
8o
L
0.50
0.60
0.70
0.020
0.024
0.028
A2
A
K
L
b
e
A1
c
E
D
E1
PIN 1 IDENTIFICATION
1
18/21
STMAV335
8 Package Mechanical Data
Tape & Reel TSSOP16 MECHANICAL DATA
mm.
TYP
inch
TYP.
DIM.
MIN.
MAX.
330
MIN.
MAX.
12.992
0.519
A
C
12.8
20.2
60
13.2
0.504
0.795
2.362
D
N
T
22.4
6.9
5.5
1.8
4.1
8.1
0.882
0.272
0.217
0.071
0.161
0.319
Ao
Bo
Ko
Po
P
6.7
5.3
1.6
3.9
7.9
0.264
0.209
0.063
0.153
0.311
19/21
9 Revision History
STMAV335
9
Revision History
Date
Revision
Description of Change
23-Jan-2006
1
First Release
20/21
STMAV335
9 Revision History
Information furnished is believed to be accurate and reliable. However, STMicroelectronics assumes no responsibility for the consequences
of use of such information nor for any infringement of patents or other rights of third parties which may result from its use. No license is granted
by implication or otherwise under any patent or patent rights of STMicroelectronics. Specifications mentioned in this publication are subject
to change without notice. This publication supersedes and replaces all information previously supplied. STMicroelectronics products are not
authorized for use as critical components in life support devices or systems without express written approval of STMicroelectronics.
The ST logo is a registered trademark of STMicroelectronics.
All other names are the property of their respective owners
© 2006 STMicroelectronics - All rights reserved
STMicroelectronics group of companies
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www.st.com
21/21
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