BA7622 データシートの表示（PDF） - ROHM Semiconductor

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BA7622

75Ω driver IC with 3 internal circuits

ROHM Semiconductor 

Multimedia ICs

•Block diagram

GND 1

75Ω

driver

8 OUT1

IN1 2

Clamp

75Ω

driver

7 OUT2

IN2 3

IN3 4

Clamp

20k

NO Clamp

75Ω

driver

6 OUT3

5 VCC

BA7622F

•Pin descriptions

Pin No. Pin name

1

GND

2

IN1

3

IN2

4

IN3

5

VCC

6

OUT3

7

OUT2

8

OUT1

Function

Ground connection

Clamp input

Input composite video or the Y signal separated from Y / C.

Clamp input

Input composite video or the Y signal separated from Y / C.

Biased input

Input the chroma signal. Terminated with a 20kΩ resistor.

Power supply

Biased output

Output for the signal input to IN3. When connected to earth a protection circuit operates,

and the IC enters power-save mode.

Clamped output

Output for the signal input to IN2. When connected to earth a protection circuit operates,

and the IC enters power-save mode.

Clamped output

Output for the signal input to IN1. When connected to earth a protection circuit operates,

and the IC enters power-save mode.

2

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