鈥?/div>
designed to drive class D integrated receivers
handles high input levels (up to 100 mVRMS) cleanly
low THD and IMD distortion
unique twin average detectors
dual channel signal processing
adjustable AGC threshold levels
MPO range externally adjustable
highpass filter with adjustable corner frequency
2:1 compression of high frequencies
DESCRIPTION
The DynamEQ
廬
I hybrid is a dynamically adaptive loudness
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.
DynamEQ
廬
I has two signal paths for dual channel
processing incorporating 4 amplifying stages (A , B,
C, D) and the AGC processing circuit.
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.
鈥?no external capacitors or resistors required
鈥?30% smaller by volume than DynamEQ
廬
I (GS3011)
STANDARD PACKAGING
鈥?Hybrid Typical Dimensions
0.250 in x 0.115 in x 0.115 in
(6.35 mm x 2.92 mm x 2.92 mm)
V
B
5
C7
2碌2
C6
0碌1
100k
V
REG
10
C1
2碌2
R
TH
1
R1
68k
C
HP
11
C2
IN 9
3n9
12k
REGULATOR
SLOW
AVERAGE
DETECTOR
100k
FAST
AVERAGE
DETECTOR
CURRENT
REFERENCE
2:1
COMPRESSION
CONTROL
RECTIFIER
V
B
48k
-A
-C
D
48k
3 OUT
C3
0碌1
MGND 8
R2
50k
-B
50k
50k
50k
2 MPO
C5
C4
0碌1
7
6
C
OUT
0碌1
GS3021
GND 4
All resistors in ohms, all capacitors in farads unless otherwise stated.
Patent Pending.
C
IN
FUNCTIONAL BLOCK DIAGRAM
Revision Date: May 1998
Document No. 521 - 06 - 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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