Agamem Microelectronics Inc.

AA8334

PRELIMINARY

SURROUND PROCESSOR

©Copyright Agamem Microelectronics Inc.

www.agamem.com.tw

2008/3/28

AGAMEM MICROELECTRONICS INCOPERATION RESERVES THE RIGHT TO MAKE CHANGES WITHOUT FURTHER

NOTICE TO ANY PRODUCTS HEREIN TO IMPROVE RELIABILITY, FUNCTION OR DESIGN. AGAMEM DOES NOT

ASSUME ANY LIABILITY ARISING OUT OF THE APPLICATION OR USE OF ANY PRODUCT OR CIRCUIT DESRIBED

HEREIN; NEITHER DOES IT CONVEY ANY LICENSE UNDER ITS PATENT RIGHTS, NOR THE RIGHTS OF OTHERS.

1

■ DESCRIPTION

AA8334 is an analog stereo enhancement processor. It creates a stereo image with depth

in three dimensions from ordinary left and right input channels. The patented QXpander

(*1) technology developed by QSound Labs, Inc., is faithfully implemented by

Agamem(*2).

Note 1: QXpander® is a stereo to 3D enhancement processor and is a trademark of QSound

Labs, Inc...

Note 2: Agamem has got licensing agreement of QXpander® from QSound Labs, Inc...

■ FEATURES

• Sound spreading can be easily adjusted using an external VR.

• Few external components required through use of internal filter circuit.

• QXpander on/off switching at TTL level.

■ APPLICATIONS

• Sound enhancement processor for LCD TV, home theater, PC, notebook and car stereo.

■ BLOCK DIAGRAM

16

14

15

13

11

12

9

10

1

3

2

4

6

5

8

7

RIN

VREF

S/3D

FC

SPC

3DIN

ROUT

GND

Vcc

LIN

3DF1

DET

LOUT

3DF2

3DF3

3DF4

AA8334

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