Datasheet > GB570

GB570

更新时间： 2024-11-25 23:53:35

品牌	Logo	应用领域
其他 - ETC		/
页数	文件大小	规格书
7页	120K
描述
GB570 - DynamEQ? II WDRC IC

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中文翻译

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GB570 数据手册

D y n a m E Q II

W DRC IC

GB5 7 0 / GC5 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

• 2nd (4th) order state variable filter

• adjustable crossover frequency

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

GB570 (GC570) incorporates 12 dB/oct (24 dB/oct) filtering

a nd is d e s ig ne d to a c c ommod a te CIC a nd ITC s ize

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 12 dB/oct (24 dB/oct) band split filter ahead of the

e xp a nd e r/c omp re s s or c irc uits a llows for ind e p e nd e nt

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

1:1

2:1

4:1

SAD

FAD

GB570

GC570

85k6

SLOW

FAST

42k8

REG

REGULATOR

AVERAGE

DETECTOR

CONTROL

RECTIFIER

50k

AGC_IN

48k

High Frequency

Expander / Compressor

12 dB / Oct

OUT

MPO

- B

- C

(24 dB / Oct)

BAND SPLIT

FILTER

- A

10k

48k

8k4

Low Frequency

Expander / Compressor

14k

12k

GND

REG

OUT

ƒc

OUT

All resistors in ohms, all capacitors

in microfarads, unless otherwise stated

FUNCTIONAL BLOCK DIAGRAM

Document No. 5 2 1 - 9 9 - 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

中文翻译

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