NAD VISO TWO Service Manual page 50

VIDEO SW IC(PI5V330) : IC56, IC59
Low On-Resistance Wideband/Video
Quad 2-Channel Mux/DeMux
Features
• High-performance solution to switch between video sources
• Wide bandwidth: 200 MHz
• Low On-Resistance: 3Ω
• Low crosstalk at 10 MHz: –58dB
• Ultra-low quiescent power (0.1μA typical)
• Single supply operation: +5.0V
• Fast switching: 10ns
• High-current output: 100mA
• Packaging (Pb-free & Green Available):
– 16-pin 300-mil wide plastic SOIC (S)
– 16-pin 150-mil wide plastic SOIC (W)
– 16-pin 150-mil wide plastic QSOP (Q)
Block Diagram
1
S A
2
S A
1
S B
2
S B
1
S C
2
S C
1
S D
2
S D
DECODER/DRIVERS
EN
Truth Table
EN IN
0 0
0 1
1 X
IN
ON Switch
1 , 1 , 1 , 1
S A S B S C S D
2 , 2 , S2 , 2
S A S B C S D
Disabled
Description
Pericom Semiconductor's PI5V330 is a true bidirectional Quad
2-channel multiplexer/demultiplexer recommended for both RGB
and composite video switching applications. The video switch can
be driven from a current output RAMDAC or voltage output com-
posite video source.
Low On-Resistance and wide bandwidth make it ideal for video and
other applications. Also this device has exceptionally high current
capability which is far greater than most analog switches offered
today. A single 5V supply is all that is required for operation.
The PI5V330 offers a high-performance, low-cost solution to
switch between video sources. The application section describes the
PI5V330 replacing the HC4053 multiplier and buffer/amplifier.
Pin Configuration
D
A
D
B
D
C
D
D
Pin Description
Pin Name
1 , 1 ,
S A S B
2 , 2 ,
S A S B
IN
EN
D , D
A B
D , D
C D
GND
V
CC
2-39
IN
1
1
S A
2
2
S A
3
D
A
4
1
S B
5
2
S B
6
D
B
7
GND
8
1 , 1
S C S D
Analog Video I/O
2 , 2
S C S D
Select Input
Enable
Analog Video I/O
Ground
Power
V
16
CC
15 EN
1
14 S D
2
13 S D
D
D
12
1
S C
11
2
S C
10
D
C
9
Description