LA75676V-S 데이터 시트보기 (PDF) - SANYO -> Panasonic

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LA75676V-S

VIF/SIF IF Signal-Processing Circuit for TV and VCR Products

SANYO -> Panasonic 

Continued from preceding page.

Pin No.

Pin

LA75676V-S

Function

Outputs a video signal that includes the SIF carrier. A

resistor must be inserted between pin 10 and ground

10

Composit video output to acquire adequate drive capability.

R ≥ 560 Ω

Equivalent circuit

2kΩ

10

15pF

A13275

VCO tank circuit for video detection

11

VCO tank

See the separately provided coil specifications for

12

details on the tank circuit. This VCO is a vector

synthesis VCO circuit.

11

12

A13276

AFT output

This circuit includes a function that controls the AFT

voltage so that it naturally goes to the center voltage

13

AFT output

during weak field reception.

A 120 kΩ bleeder resistor is built in. Note that the

sensitivity can be lowered by attaching an external

resistor.

120kΩ

1kΩ 13

120kΩ

A13277

RF AGC output

This output controls the tuner RF AGC. The internal

14

RF AGC output

circuit includes both a 30 kΩ pull-up resistor and a

100 Ω protective resistor. Determine the value of the

to tuner

external bleeder resistor to match the specifications of

the tuner.

14

A13278

Continued on next page.

No. 6277-9/13

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