CIC Size
DynamEQ
廬
I
Dynamic Equalizer - Class D
GS3023 - DATA SHEET
FEATURES
鈥?unique twin average detectors
鈥?dual channel signal processing
鈥?adjustable AGC threshold levels
鈥?MPO range externally adjustable
鈥?handles high input levels (up to 100 mVRMS)
cleanly
鈥?designed for CIC instruments
鈥?2:1 compression of high frequencies
鈥?designed to drive class D integrated receivers
鈥?65% smaller by volume than DynamEQ
廬
I (GS3011)
鈥?50% smaller by volume than DynamEQ
廬
I (GS3021)
STANDARD PACKAGING
鈥?Hybrid Typical Dimensions
0.180 in x 0.115 in x 0.080 in
(4.57 mm x 2.92 mm x 2.03 mm)
DESCRIPTION
DynamEQ
廬
I (GS3023) hybrid is a dual channel level dependent
input compression amplifier.
This
WDRC
(Wide Dynamic Range Compression) system can
be easily configured to provide either a
TILL
(Treble Increases
at Low Level) or
wideband
response.
Twin averaging detector circuits drastically reduce the pump-
ing effects associated with traditional fast attack/slow release
systems. The fast detection circuitry cuts in to control the
output level during impulsive sounds, but quickly backs out of
the way during normal operation.
Low distortion, large signal handling capabilities and constant
corner frequncy make it ideal for providing loudness growth
compensation for many of the mild to moderate cases.
The size of the hybrid and variety of electrical access points,
offers system design flexibility perfect for
ITC
and
CIC
applications.
Stage A is a highpass channel with 2:1 compression, Stage B
is a wideband unity gain buffer. The sum of the two paths gives
a high frequency boost to low level signals, which gradually
compresses to a flat response at high input levels. Stage C is
used for volume control adjustment, while stage D is a fixed
gain stage with MPO control designed to drive class D
integrated receivers.
V
B
13
C
SAD
11
C
FAD
14
C6
0碌1
100k
V
REG
1
REGULATOR
SLOW
AVERAGE
DETECTOR
100k
FAST
AVERAGE
DETECTOR
R
TH
12
68k
CURRENT
REFERENCE
2:1
COMPRESSION
CONTROL
RECTIFIER
V
B
C
HP
10
C1
IN 9
3n9
12k
48k
-A
-C
D
48k
C5
47n
5 OUT
C2
0碌1
MGND 6
50k
GND 8
C3
0碌1
7
AB
OUT
C4
82n
-B
50k
50k
50k
8k4
4 MPO
GS3023
All resistors in ohms, all capacitors in farads unless otherwise stated.
Patent Pending.
2
C
IN
3
C
OUT
FUNCTIONAL BLOCK DIAGRAM
Revision Date: May 1998
Document No. 521 - 15 - 03
GENNUM CORPORATION P.O. Box 489, Stn. A, Burlington, Ontario, Canada L7R 3Y3 tel. +1 (905) 632-2996
Web Site: www.gennum.com E-mail: hipinfo@gennum.com
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