LA77000V

No. 7875-4/8

Pin equivalent circuit

Pin

No.

Symbol

Voltage

Circuit

Remarks

1

P/S ADJ

2.7

Capacitor and additionally a Resistor may inserted between

the circuit and GND attenuate the audio inter-carrier level.

2

AUDIO

IN

0

FM audio Input.

3

FM LPF

2.2

Control pin of output FM oscilator for the PLL phase detector

charge pump.

4

GND

0

5

VIDEO

IN

2.6

Video Input

Clamped with sink chip.

6

CARR

OFF

-

Hi:14pin Hi RF Operating

Lo:14pin Lo RF Stop

Continued on next page.

100k

Ω

3k

Ω

2

1k

Ω

1k

Ω

3

2.2V

1k

Ω

100k

Ω

20k

Ω

25k

Ω

6

1

10k

Ω

500

Ω

2k

Ω

20PF

500

Ω

5

100

Ω