Ordering number : ENN7779A

SANYO Semiconductors

DATA SHEET

SANYO Electric Co.,Ltd. Semiconductor Company

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

81505MS OT B8-7701 No.7779-1/21

Overview

The LA7567EV is PAL/NTSC multi-format audio VIF/SIF IF ICs that adopt a semi-adjustment-free system. The VIF

block adopts a technique that makes AFT adjustment unnecessary by adjusting the VCO, thus simplifying the

adjustment steps in the manufacturing process. PLL detection is adopted in the FM detector to support multi-format

audio detection. A built-in SIF converter is included to simplify multi-format system designs. A 5V power-supply

voltage is used to match that used in most multimedia systems. In addition, these ICs also include a buzz canceller to

suppress Nyquist buzz and provide high audio quality. The LA7567EV feature improvements over the LA7567N and

LA7567NM in the audio and video signal-to-noise ratios and the video signal.

Functions

• VIF block: VIF amplifier, PLL detector, BNC, RF AGC, EQ amplifier, AFT, IF AGC, buzz canceller.

• First SIF block: first SIF, first SIF detector, AGC.

• SIF block: multi-format SIF converter, limiter amplifier, PLL FM detector.

Features

• No AFT or SIF coils are required, making these circuits adjustment free.

• A PAL/NTSC multi-format audio system can be constructed easily.

• Built-in buzz canceller for excellent audio performance.

•VCC = 5V, low power dissipation (250mW)

LA7567EV

Monolithic Linear IC

TV and VCR VIF/SIF IF Signal-Processing Circuit

with PAL/NTSC Multi-Format Audio Support

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.

Parameter

Symbol

Conditions

Ratings

Unit

Maximum supply voltage

VCC max

6V

Circuit voltage

V13, V17

VCC

V

I6

–3

mA

Circuit current

I10

–10

mA

I24

–2

mA

Allowable power dissipation

Pd max

Ta

≤ 70°C, when mounted on a PCB*

400

mW

Operating temperature

Topr

–20 to +70

°C

Storage temperature

Tstg

–55 to +150

°C

Specifications

Maximum Ratings at Ta = 25°C

*: Printed circuit board: 114.3mm

× 76.1mm × 1.6mm, glass epoxy board.