參數(shù)資料
型號(hào): GE570
廠商: Electronic Theatre Controls, Inc.
英文描述: Dual Channel signal processing
中文描述: 雙通道信號(hào)處理
文件頁數(shù): 1/7頁
文件大?。?/td> 142K
代理商: GE570
D y n a m E Q
II
W DRC IC
GE570 - DATA SHEET
FUNCTIONAL BLOCK DIAGRAM
All resistors in ohms, all capacitors
in microfarads, unless otherwise stated
Document No. 522 - 07 - 00
GENNUM CORPORATION P.O. Box 489, Stn. A, Burlington, Ontario, Canada L7R 3Y3 tel. +1 (905) 632-2996
W eb Site: www.gennum.com E-mail: hipinfo@gennum.com
SLOW
AVERAGE
DETECTOR
FAST
AVERAGE
DETECTOR
CONTROL
10k
RECTIFIER
V
B
50k
REGULATOR
48k
48k
8k4
1M
1M
14k
13
12k
1
X
- B
- A
- C
24 dB / Oct
BAND SPLIT
FILTER
High Frequency
Expander / Compressor
Low Frequency
Expander / Compressor
R
AGC_IN
R
H
RL
53k5
R
LO
4
R
HI
4:1
1:1A
C
SAD
MPO
R
TH
B
OUT
B
IN
R
FC
F
OUT
A
OUT
REC
OUT
1:1B
C
FAD
V
B
V
REG
IN
GND
1
2
3
5
7
8
9
10
11
12
14
15
16
17
18
19
20
6
85k6
FEATURES
dual channel signal processing
4th order state variable filter
adjustable crossover frequency
adjustable compression ratio from 1:1 to 4:1
independent compression ratio adjustment for
low and high frequency band
adjustable AGC threshold levels
unique twin average detectors
handles high input levels
low THD and IMD distortion
drives class D integrated receivers
MPO range externally adjustable
PACKAGING
Chip
Au Bump
DEVICE DESCRIPTION
The DynamEQ
II product family is a second generation Wide
Dynamic Range Compression (WDRC) system.
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.
Twin averaging detector circuits are optimized for sound quality
during normal listening without sacrificing comfort during
sudden loud inputs.
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.
The gain setting stage is followed by a class D integrated
receiver preamplifier stage. Symmetrical peak clipping is used
to achieve MPO adjustment.
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