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YOUDA INTEGRATED CIRCUIT

YD5020

LOW VOLTAGE COMPANDER鈥擸D5020

DESCRIPTION

The YD5020 contains two variable gain circuits configured for compressing and expanding the dynamic range

of an audio signal. One circuit is configured as an expander, while the other circuit can be configured as a compressor

or expander. Each circuit has a full wave rectifier to provide average value information to a variable gain cell located

in either the input stage or the feedback path.

FEATURES

*Low voltage operation: Vopr=1.8錕?frac12;錕?.0V

*Decreasing external component

*Built in compressor and expander mute circuit

*Unity gain level set a 100mVrms

*Response time adjustable

BLOCK DIAGRAM

14

Vcc

13

12

11

10

9

8

_

Mute

Bais

+

_

Mute

+

VB

VB

Gain

RECT

Gain

RECT

Vref

1

2

3

VB

4

5

6

GND

7

WuXi YouDa Electronics Co., Ltd

Tel:

Add: No.5 Xijin Road, National Hi-Tech Industrial Development Zone, Wuxi Jiangsu China

86-510-85205117

86-510-85205106

Fax: 86-510-85205110

Website: www.e-youda.com

SHENZHEN OFFICE

Tel錛?86-755-83740369

Fax錛?86-755-83741418

1 of 4

2006-08-11

Ver 5.0

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