Datasheet > GE570

GE570

更新时间： 2025-08-03 21:55:15

品牌	Logo	应用领域
其他 - ETC		/
页数	文件大小	规格书
7页	146K
描述
Dual Channel signal processing

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数据手册

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GE570 数据手册

D y n a m E Q II

W DRC IC

GE5 7 0 - DATA SHEET

FEATURES

DEVICE DESCRIPTION

The DynamEQ^®II product family is a second generation Wide

Dynamic Range Compression (WDRC) system.

• dual channel signal processing

• 4th order state variable filter

• adjustable crossover frequency

• adjustable compression ratio from 1:1 to 4:1

GE570 incorporates 24 dB/oct filtering and is designed to

accommodate CIC and ITC size requirements.

The gain and frequency response is dependant on the user’s

environment.

• independent compression ratio adjustment for

low and high frequency band

Twin averaging detector circuits are optimized for sound quality

during normal listening without sacrificing comfort during

sudden loud inputs.

• adjustable AGC threshold levels

• unique twin average detectors

• handles high input levels

All input signals to DynamEQ^®II, are processed by 2:1

compression before subsequent band splitting.

The 24 dB/oct band split filter ahead of the expander/

compressor circuits allows for independent compression ratio

adjustment (1:1 to 4:1) in high and low frequency channels.

• low THD and IMD distortion

• drives class D integrated receivers

• MPO range externally adjustable

The gain setting stage is followed by a class D integrated

receiver preamplifier stage. Symmetrical peak clipping is used

to achieve MPO adjustment.

PACKAGING

• Chip

Au Bump

C_SAD

V_B

1:1B

R_HIR_LO

C_FAD

1:1A

4:1

FAST

53k5

85k6

SLOW

V_REG

REGULATOR

AVERAGE

DETECTOR

AVERAGE

DETECTOR

R_TH

CONTROL

R_{AGC_IN}

RECTIFIER

V_B

50k

48k

R_H

High Frequency

Expander / Compressor

24 dB / Oct

BAND SPLIT

FILTER

OUT

MPO

- B

- C

- A

10k

48k

8k4

Low Frequency

Expander / Compressor

12k

14k

GND

A_OUT

F_OUT

REC

R_FC

B_IN

B_OUT

All resistors in ohms, all capacitors

in microfarads, unless otherwise stated

FUNCTIONAL BLOCK DIAGRAM

Document No. 5 2 2 - 0 7 - 0 0

GENNUM CORPORATION P.O. Box 4 8 9 , Stn. A, Burlington, Ontario, Canada L7 R 3 Y3 tel. +1 (9 0 5 ) 6 3 2 -2 9 9 6

W eb Site: www.gennum.com E-mail: hipinfo@gennum.com

12 3 4 5 6 7

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