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Multimedia ICs
Video signal switcher
BA7603 / BA7603F
The BA7603 and BA7603F are switching ICs developed for use in VCRs. Each contains three two-channel analog
multi-plexers. The switches have sync-tip clamped inputs and are ideal for switching video signals.
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Applications
Video cassette recorders and televisions
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Features
1) Three 2-input / 1-output switches.
2) Sync-tip clamped inputs.
3) 5V power supply.
4) Low power consumption (62.5mW Typ.).
5) Excellent frequency characteristics
(10MHz, 0dB Typ.).
6) Wide dynamic range (2.9VP-P Typ.).
7) Fast switching speed (50ns Typ.).
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Absolute maximum ratings (Ta = 25°C)
Parameter Symbol Limits Unit
V
°C
mW
°C
VCC 9
500
*
Topr
Tstg
– 40 ~ + 85
– 55 ~ + 125
Pd
Power supply voltage
Power dissipation
Operating temperature
Storage temperature
*
Reduced by 5.0mW for each increase in Ta of 1°C over 25°C.
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Block diagram
OUTa
SWa
SWb
SWc
1IN2a IN1a
GND
IN2b
VCC
CTLb
IN1b
GND
CTLa
GND
OUTb
OUTc
IN2c
16
15
14
13
12
11
10
9
2
3
4
5
6
7
8
CTLc
IN1c
L
H
IN 2
IN 1
CTL
SWa, SWb, SWc: pedestal-clamped input
Output