BA7657F_08 Ver la hoja de datos (PDF) - ROHM Semiconductor

Número de pieza

componentes Descripción

fabricante

BA7657F_08

Broadband Triple Circuits Video Signal Switchers

ROHM Semiconductor 

●Pin descriptions (1/2)

BH7659FS

Pin No.

Pin name

1

R chroma signal input pin A

(RINA)

3

G chroma signal input pin A

(GINA)

5

B chroma signal input pin A

(BINA)

7

R chroma signal input pin B

(RINB)

9

G chroma signal input pin B

(GINB)

B chroma signal input pin B

11

(BINB)

Reference

potential

3.5V

when

selected

0V

when not

selected

B chroma signal input pin

27 (BOUT)

29

G chroma signal input pin

(GOUT)

31 R chroma signal input pin

(ROUT)

1.85V

Equivalent circuit

VCC

3.7V

10k

2k

VCC

500

2k

Function

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.

Power save function is used

when PSH pin is set to high

level.

8

Power save input pin

(PSH)

0V

13 Control input pin

(CTL)

VCC

3.25V

50k

PSH Pin

Power save off ≦1.5V

Power save on ≧3.5V

CTL Pin

Input A≧3.5V

Input B≦1.5V

11/16

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