LA75691 データシートの表示（PDF） - SANYO -> Panasonic

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LA75691

IF Signal-Processing IC for PAL/NTSC Multichannel Audio TV and VCR Systems

SANYO -> Panasonic 

Ordering number : EN5734

Monolithic Linear IC

LA75691

IF Signal-Processing IC for PAL/NTSC Multichannel

Audio TV and VCR Systems

Overview

The LA75691 is a PAL/NTSC multichannel audio

VIF/SIF signal-processing IC that makes the minimum

number of adjustments possible. The system is designed

so that VCO adjustment makes AFT adjustment

unnecessary, thus simplifying the adjustment steps in end-

product manufacturing. PLL detection is adopted in the

FM detector, allowing the LA75691 to support

multichannel detection for the audio signal. In addition, it

also incorporates a buzz canceller that suppresses Nyquist

buzz for improved audio quality.

Functions

[VIF Block]

• PLL detector with minimum number of adjustments

• AFT

• Equalizer amplifier

• RF AGC

[First SIF BLOCK]

• First SIF detector

• HPF

[SIF Block]

• PLL-based FM detector

[Muting Block]

• AV muting

Package Dimensions

unit: mm

3067-DIP24S

[LA75691]

SANYO: DIP24S

Features

• Excellent buzz and buzz/beating characteristics provided

by a PLL detection technique that includes a buzz

canceller.

• The second IF AGC filter is built in.

• No coils are used in the AFT and SIF circuits, making

them adjustment free.

Ambient temperature, Ta — °C

Any and all SANYO products described or contained herein do not have specifications that can handle

applications that require extremely high levels of reliability, such as life-support systems, aircraft’s

control systems, or other applications whose failure can be reasonably expected to result in serious

physical and/or material damage. Consult with your SANYO representative nearest you before using

any SANYO products described or contained herein in such applications.

SANYO assumes no responsibility for equipment failures that result from using products at values that

exceed, even momentarily, rated values (such as maximum ratings, operating condition ranges, or other

parameters) listed in products specifications of any and all SANYO products described or contained

herein.

SANYO Electric Co.,Ltd. Semiconductor Bussiness Headquarters

TOKYO OFFICE Tokyo Bldg., 1-10, 1 Chome, Ueno, Taito-ku, TOKYO, 110-8534 JAPAN

90898RM (OT) No. 5734-1/13

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