Sanyo LA7953 Specifications

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.

Monolithic Linear IC

Audio Controller for TV Use

Ordering number:ENN2713A

LA7953

SANYO Electric Co.,Ltd. Semiconductor Company

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

Overview

The LA7953 Audio Controller is a single-chip, liner IC
featuring a built-in expansion circuit. The device also fea­tures a 4-input 1-output audio switch, an acoustic mute, a
LINE-OUT output, and audio control functions for volume,
balance, bass and treble on-chip.
Excellent audio reproduction can be obtained using the right
channel expansion circuit.
The LA7953 operates on a single 12V power supply and is
available in 30-pin plastic DIPs.

Features

• On-chip audio controller and audio switch facilitate de­sign.

• Audio controller for volume, balance, bass and treble.

• 4-input/1-output audio switch.

• On-chip expansion circuit ensures excellent sound repro­duction.

• LINE-OUT output.

• Acoustic mute.

Specifications

Maximum Ratings at Ta = 25˚C

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Package Dimensions

unit:mm

3061-DIP30S

30

1

1.15

V

CC

1.78

V41=21V

[LA7953]

27.2

0.48 0.95

16

8.6

10.16

15

4.25

4.95max

3.2

0.51min

SANYO : DIP30S

Continued on next page.

0.25

12501TN (KT)/O2095TH (KOTO)/7128TA, TS (KOTO) No.2713–1/7

LA7953

Continued from preceding page.

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Operating Conditions at Ta = 25˚C

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No.2713–2/7

LA7953

Audio Switch Truth Table

4S

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LH FFONOFFOFFOFFONOFFOFFO
HL FFOFFONOFFOFFOFFONOFFO
LL FFOFFOFFONOFFOFFOFFONO

Equivalent Curcuit Block Diagram

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No.2713–3/7

I/O Equivalent Curcuits

LA7953

No.2713–4/7

Test Circuit (1)

LA7953

Test Circuit (2)

No.2713–5/7

LA7953

No.2713–6/7

LA7953

Specifications of any and all SANYO products described or contained herein stipulate the performance,
characteristics, and functions of the described products in the independent state, and are not guarantees
of the performance, characteristics, and functions of the described products as mounted in the customer's
products or equipment. To verify symptoms and states that cannot be evaluated in an independent device,
the customer should always evaluate and test devices mounted in the customer's products or equipment.

SANYO Electric Co., Ltd. strives to supply high-quality high-reliability products. However, any and all
semiconductor products fail with some probability. It is possible that these probabilistic failures could
give rise to accidents or events that could endanger human lives, that could give rise to smoke or fire,
or that could cause damage to other property. When designing equipment, adopt safety measures so
that these kinds of accidents or events cannot occur. Such measures include but are not limited to protective
circuits and error prevention circuits for safe design, redundant design, and structural design.

In the event that any or all SANYO products(including technical data,services) described or
contained herein are controlled under any of applicable local export control laws and regulations,
such products must not be exported without obtaining the export license from the authorities
concerned in accordance with the above law.

No part of this publication may be reproduced or transmitted in any form or by any means, electronic or
mechanical, including photocopying and recording, or any information storage or retrieval system,
or otherwise, without the prior written permission of SANYO Electric Co. , Ltd.

Any and all information described or contained herein are subject to change without notice due to
product/technology improvement, etc. When designing equipment, refer to the "Delivery Specification"
for the SANYO product that you intend to use.

Information (including circuit diagrams and circuit parameters) herein is for example only ; it is not
guaranteed for volume production. SANYO believes information herein is accurate and reliable, but
no guarantees are made or implied regarding its use or any infringements of intellectual property rights
or other rights of third parties.

This catalog provides information as of January, 2001. Specifications and information herein are subject
to change without notice.

PS No.2713–7/7