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Ordering number: EN 4952

Monolithic Linear IC

LA7578N

IF Signal Processing (Super PLL-II VIF + SIF)

Circuit for TVs and VCRs

Overview

The LA7578N is an intercarrier-type VIF + SIF IC that

supports excellent sound quality and image quality.

The pin assignment of the LA7578N is identical to that of the

LA7577N, allowing the LA7577N to be used for split systems

while the LA7578N is used for intercarrier systems. In

addition, the LA7578N suppresses Nyquist buzz interference

by using a PLL detection system with a buzz canceller in order

to provide the best sound quality possible.

Package Dimensions

unit : mm

3067-DIP24S

[LA7578N]

Functions

.

.

.

.

.

.

[SIF Block]

.

Limiter amplifier

[Mute]

.

Audio mute (pin 2)

.

IS-15 switch (pin 13)

Features

[VIF Block]

VIF amplifier

VCO

APC filter

B/W NC

AFT

IF AGC

.

PLL detector

.

Equalizer amplifier

.

Lock detection

.

RF AGC

.

APC detector

.

Buzz canceller

.

FM quadrature detector

.

AV mute (pin 4)

SANYO : DIP24S

.

Excellent buzz and buzz-beat characteristics due to PLL

system

.

detectionAPC timewith buzz canceller.

constant switch.

.

Built-in time constant system suited for high-speed AGC.

.

Duplicate DG and DP characteristics.

.

Excellent adjustment is simple.

RF AGC

SANYO Electric Co.,Ltd. Semiconductor Bussiness Headquarters

TOKYO OFFICE Tokyo Bldg., 1-10, 1 Chome, Ueno, Taito-ku, TOKYO, 110 JAPAN

81095HA (II)No.4952 - 1/18

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LA7578相關(guān)型號(hào)PDF文件下載

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• LA7533
  英文版
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• LA7550
  英文版
  IF Signal Processing (VIF+SIF) Cricuit for TV/VTR
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