BH7634AS datasheet(4/12 Pages) ROHM

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Multimedia ICs

BH7634AS

•Pin descriptions and input output equivalent circuits

µA

50k

DRVGND

GND

DRVVCC

VCC

50k

12V

FS control

Three voltages are output

via I2C BUS control: 11.8V,

5.9V, 0.2V.

FSCOUT

—

™

—

Pin No.

VDECIN

VTUNIN

VEXTIN

VVTRIN

DRVGND

GND

DRVVCC

VCC

ADECIN

AEXTIN

ATUNIN

AVTRIN

™

—

1.6V

——

—

12V

™

—

5.3V

OUT

Pin name

Typ.

voltage

I / O equivalent circuits

Pin description

Video signal input

For composite video signal

input (sink chip clamp input).

Ground

DRVGND is the driver

ground. GND is the ground

for the circuit itself. GND and

DRVGND are not connected

internally.

Power supply

DRVVCC is the driver

power supply. VCC is the

power supply for the circuit

itself. VCC and DRVVCC

are not connected internally.

Audio signal input

For audio signal input.

Input impedance is 50k.

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