3

Multimedia ICs

BA7660FS

Pin. No

Pin name

IN

OUT

Reference

voltage

Equivalent circuit

Function

1

MUTE

K

——

K

——

2

4

7

INA

INB

INC

—

K

0.9V

0.95V

14

12

9

15

13

10

OUTA2

OUTB2

OUTC2

OUTA1

OUTB1

OUTC1

—

—

5.0V

16

Muting control

If MUTE (pin 1) is set to HIGH, muting

is carried out simultaneously on all

three channels.

Signal input

Input signals consist of composite

video signals, Y signals, C signals,

RGB, and others. The input level is

within a range of 0 to 1.3 (min.) to 1.5

(typ.).

——

0V

3

5

8

GND

Ground

Signal output

The signal output level is (0.9 + 2

×

input voltage [V]). Pins 9, 12, and 14

are the pins for sag correction. If pins

10, 13, and 15 are set to 0.2V or less,

the protective circuit is triggered and

the power-saving mode is accessed.

Power supply

15k

8k

GND

15pin

13pin

10pin

14pin

12pin

9pin

Vcc