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BA7603

Video signal switcher

ROHM Semiconductor 

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.

•Applications

Video cassette recorders and televisions

•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.).

•Absolute maximum ratings (Ta = 25°C)

Parameter

Symbol

Limits

Unit

Power supply voltage

VCC

9

V

Power dissipation

Pd

500∗

mW

Operating temperature

Topr

– 40 ~ + 85

°C

Storage temperature

Tstg

– 55 ~ + 125

°C

∗ Reduced by 5.0mW for each increase in Ta of 1°C over 25°C.

•Block diagram

IN2a 1

CTLa 2

OUTa 3

GND 4

OUTb 5

OUTc 6

CTLc 7

IN2c 8

16 IN1a

15 GND

14 IN2b

13 VCC

12 CTLb

11 IN1b

10 GND

9 IN1c

CTL Output

L

IN 2

H

IN 1

SWa, SWb, SWc: pedestal-clamped input

1

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