BA7664FV 데이터 시트보기 (PDF) - ROHM Semiconductor

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BA7664FV

75Ω driver with Y / C MIX circuit

ROHM Semiconductor 

Multimedia ICs

•Pin descriptions and input / output circuits

Pin. No Pin name

IN

OUT

Reference

potential

Equivalent circuit

1

MUTEA K

—

—

5

MUTEB

15k

14k

BA7664FV

Pin description

Muting control

If MUTEA (pin 1) is set to HIGH, the

output is muted. If MUTEB (pin 8) is

set to HIGH, only the chrominance

signal is muted. (The Y signal is

output without being muted.)

2

YIN

K — 2.0V

3

GND

——

0V

Signal input

This is the input pin for composite Y

signals, and is sync chip clamped

input.

↓

Ground

GND

4

CIN

K — 2.0V

6pin

6

7

MIXOUT2

MIXOUT1 —

K

0.9V

0.95V

7pin

8

VCC

— — 5.0V

20k

↓

Signal input

This is the input pin for chrominance

signals, and is bias-type input. The

input impedance is 20kΩ.

Signal output

These are the Y / C MIX signal output.

Pin 6 is the pin for sag correction. If

pin 7 is set to 0.2V or less, the

protective circuit is triggered and the

power-saving mode is accessed.

Power supply

VCC

3

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