LA75675M-S 查看數據表（PDF） - SANYO -> Panasonic

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LA75675M-S

VIF/SIF IF Signal-Processing Circuit that Supports NTSC Intercarrier for TV and VCR Products

SANYO -> Panasonic 

Continued from preceding page.

Pin No.

Pin

LA75675M-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 ≥ 470 Ω

Equivalent circuit

2 kΩ

15 pF

10

300 Ω

A12626

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

A12627

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.

120 kΩ

1 kΩ 13

120 kΩ

A12628

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

A12629

Continued on next page.

No. 6276-9/13

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