BA7657F Ver la hoja de datos (PDF) - ROHM Semiconductor

Número de pieza

componentes Descripción

fabricante

BA7657F

Ultra Wide Band Triple Circuits Video Signal Switchers

ROHM Semiconductor 

BA7657F,BH7659FS

●Pin descriptions (BH7659FS)

○BH7659FS

Pin

NO

Pin name

Reference

potential

1 R chroma signal input pin A

(RINA)

3 G chroma signal input pin A

(GINA)

5 B chroma signal input pin A

3.5V

(BINA)

when selected

7 R chroma signal input pin B

0V

9

(RINB)

G chroma signal input pin B

when not selected

(GINB)

11 B chroma signal input pin B

(BINB)

Technical Note

Equivalent circuit

Function

VCC

3.7V

10k

2k

RGB signals are switched

in two channels.

When selected by SW,

the DC potential is

approximately 3.5V, and

when not selected, the DC

potential is about 0 V.

27 B chroma signal input pin

(BOUT)

29 G chroma signal input pin

(GOUT)

31 R chroma signal input pin

(ROUT)

1.85V

VCC

500

2k

Power save function is

used when PSH pin is set

to high level.

8 Power save input pin

(PSH)

13 Control input pin

0V

(CTL)

VCC

PSH Pin

3.25V

Power save off ≦1.5V

Power save on ≧3.5V

CTL Pin

Input A≧3.5V

50k

Input B≦1.5V

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© 2011 ROHM Co., Ltd. All rights reserved.

9/16

2011.04 - Rev.A

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