LA75675M-S 데이터 시트보기 (PDF) - SANYO -> Panasonic

부품명

상세내역

일치하는 목록

LA75675M-S

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

SANYO -> Panasonic 

Pin Functions

Pin No.

Pin

LA75675M-S

Function

Equivalent circuit

SIF input

The input impedance is about 1 kΩ.

Since interference signals* entering this input can

result in buzzing and beat signals, the pattern layout

1

SIF input

for the signal input to this pin must be designed

carefully.

*: Signals that can interfere with audio include video

and chrominance signals. Thus the VIF carrier

signal can cause interference.

1 kΩ

1 kΩ

1 kΩ

1

A12620

4.2 V

The FM detector signal-to-noise ratio can be improved

by inserting a filter in the FM detector bias line.

C1 must be 0.47 µF or higher, and we recommend

2

FM power supply filter 1 µF.

If the FM detector is not used, a 2 kΩ resistor must be

inserted between pin 2 and ground. This stops the FM

detector VCO circuit.

10 kΩ

4 kΩ

2

C1

TO VCO BIAS

14 kΩ

A12621

Outputs the intercarrier detector output that has been

3

SIF out

passed through a high-pass filter.

(4.5 MHz output)

4

NC

This pin should be left open.

5

VCC

Use lines that are as short as possible for VCC/ground

decoupling.

200 Ω

3

A12622

Continued on next page.

No. 6276-7/13

Share Link: