ICs for Audio Common Use

1

Publication date: October 2002

SDC00027BEB

AN7397K, AN7397S

■ Overview

Spatializer Audio Processor is a signal process-

ing technology, monopolized by Desper Products,

Inc., that was developed for commercial electronics

and multimedia markets, and is based on Desper's

“PRO Spatializer” that is a 3-D audio production

system for business use. The AN7397K, AN7397S

utilizes the innovative technology adopted in that

system, and provides sound enhancement effect and

sound expansion with the conventional 2-speaker ste-

reo system.

■ Features

• Provides deep 3-D sound with conventional 2-

speaker system.

• The audio signal recorded through this IC can be

reproduced with usual stereo system.

• Performs optimal processing to the sound source

recorded with surround-effect so as not to give

double effects.

• Sound localization can be varied.

• A pseudo stereo effect for the monaural audio sig-

nal is achieved.

• Positions and moves each sound source on 270°

arc in real time.

space-effect and change modes.

■ Applications

• Televisions, videos, audio equipment, DVDs, per-

sonal computers, and game machines

■ Pin Assignment

SOP020-P-0300B

AN7397S

SDIP020-P-0300

AN7397K

0.3

12.6±0.3

110

20

11

1.27

0.4

0.40±0.25

7.62±0.25

3

° to 15

°

0.35

+0.1

– 0.05

19.1±0.3

110

20

11

1.778

0.5±0.1

0.9±0.25

Unit: mm

Unit: mm

are owned by Desper Products Inc.

This product can be used with the consent of the Desper Products Inc.

Under the terms of the agreement between Matsushita Electric and Desper Products Inc., no technical information on the

Spatializer, which is applied to this product, shall be provided.

Note) The packages (SDIP020-P-0300 and SOP020-P-0300B) of this

product will be changed to lead-free type (SDIP020-P-0300A

and SOP020-P-0300E). See the new package dimensions sec-

tion later of this datasheet.