LA7583 데이터 시트보기 (PDF) - SANYO -> Panasonic

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LA7583

IF Signal Processing Circuit (A2C PLL VIF + SIF) for TVs and VCRs

SANYO -> Panasonic 

Continued from preceding page.

Pin

No.

Symbol

17 EQUALIZER INPUT

LA7583

Circuit Configuration

Description

Pin 17 is the equalizer amplifier input pin. A

signal which has passed through a 4.5 MHz

trap is input through pin 17 and is output

.through pin 19.

The input level of pin 17 is 1.5 Vp-p. This

is amplified 3 dB to 2 Vp-p by the

equalizer amplifier.

18 EQUALIZER FILTER

Pin 18 is the equalizer pin. The equalizer

amplifier is of the voltage follower type with

a voltage gain of 3 dB. To correct the

frequency characteristics, connect LCR

externally.

The operating characteristics are as follows:

Ve

R1

Av = = 1 + (times)

Vi

Z

19 EQUALIZER

OUTPUT

Pin 19 is the equalizer amplifier output pin.

This output has a built-in low-impedance

drive circuit.

Continued on next page.

No.5177-11/16

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