®
DynamEQ -1
Dynamic Equalizer-Reflowable
GS3030 - DATA SHEET
FEATURES
DESCRIPTION
• handles high input levels (up to 100 mVRMS)
cleanly
TheDynamEQ® -1hybridisadynamicallyadaptiveloudness
growth equalizer. Its gain and frequency response is
dependent on the user's environment, and is designed for
level dependant frequency response providing treble
increase at low levels (TILL). The unique twin averaging
detector circuit dramatically reduces pumping effects and
is optimized for mild to moderate hearing loss.
• low THD and IMD distortion
• unique twin average detectors
• dual channel signal processing
• adjustable AGC threshold levels
• highpass filter with adjustable corner frequency
• 2:1 compression of high frequencies
DynamEQ®-1has twosignalpathsfordualchannelprocessing
incorporating 4 amplifying stages ( A, B, C, D ) and the
AGC processing circuit.
• 26% smaller than original DynamEQ® -1 GS3011
STANDARD PACKAGING
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 class A power amplifier with receiver
bias current adjustment.
• Hybrid Typical Dimensions
0.250 in x 0.115 in x 0.070 in
(6.35 mm x 2.92 mm x 1.78 mm)
C
V
SAD
15
GND
14
B
5
100nF
100k
13
GND
C
V
100k
REG 12
10
C
SLOW
AVERAGE
DETECTOR
FAST
AVERAGE
DETECTOR
REG
REGULATOR
REG
2:1
CURRENT
REFERENCE
R
1
COMPRESSION
CONTROL
TH
RECTIFIER
R1
68k
V
B
C
24k
1k
11
9
HP
12k
C2
3
OUT
E
- A
IN
- C
3n9
D
1
2
1 R
C3
R2
515
- B
0µ1
50k
50k
50k
MGND
GND
8
4
50k
0µ1
GS3030
0µ1
7
6
All resistors in ohms, all capacitors in farads unless otherwise stated.
Patent Pending.
C
C
OUT
IN
FUNCTIONAL BLOCK DIAGRAM
Revision Date: May 1998
Document No. 521 - 22 - 04
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