gs3023 ETC-unknow, gs3023 Datasheet

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gs3023

Manufacturer Part Number
gs3023
Description
Size Dynameq Dynamic Equalizer Class
Manufacturer
ETC-unknow
Datasheet
FEATURES
• unique twin average detectors
• dual channel signal processing
• adjustable AGC threshold levels
• MPO range externally adjustable
• handles high input levels (up to 100 mVRMS)
• designed for CIC instruments
• 2:1 compression of high frequencies
• designed to drive class D integrated receivers
• 65% smaller by volume than DynamEQ
• 50% smaller by volume than DynamEQ
STANDARD PACKAGING
• Hybrid Typical Dimensions
DESCRIPTION
DynamEQ
input compression amplifier.
Revision Date: May 1998
cleanly
GENNUM CORPORATION P.O. Box 489, Stn. A, Burlington, Ontario, Canada L7R 3Y3 tel. +1 (905) 632-2996
®
I (GS3023) hybrid is a dual channel level dependent
MGND
V
GND
C
REG
R
All resistors in ohms, all capacitors in farads unless otherwise stated.
Patent Pending.
HP
TH
IN
12
10
1
8
9
6
0.180 in x 0.115 in x 0.080 in
(4.57 mm x 2.92 mm x 2.03 mm)
C1
3n9
C2
0 1
Web Site: www.gennum.com E-mail: hipinfo@gennum.com
68k
REGULATOR
V
13
B
12k
50k
®
®
FUNCTIONAL BLOCK DIAGRAM
I (GS3011)
I (GS3021)
REFERENCE
CURRENT
C
11
SAD
- B
DETECTOR
AVERAGE
50k
SLOW
100k
- A
COMPRESSION
CONTROL
C3
2:1
50k
AB
7
OUT
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.
0 1
C
14
FAD
50k
DETECTOR
AVERAGE
C6
0 1
FAST
100k
82n
C4
RECTIFIER
Dynamic Equalizer - Class D
C
IN
2
- C
CIC Size DynamEQ
3
C
OUT
D
8k4
V
GS3023 - DATA SHEET
B
GS3023
48k
48k
Document No. 521 - 15 - 03
47n
C5
5
4
MPO
OUT
®
I

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gs3023 Summary of contents

Page 1

... D integrated receivers • 65% smaller by volume than DynamEQ • 50% smaller by volume than DynamEQ STANDARD PACKAGING • Hybrid Typical Dimensions 0.180 in x 0.115 in x 0.080 in (4. 2. 2.03 mm) DESCRIPTION DynamEQ I (GS3023) hybrid is a dual channel level dependent ® input compression amplifier. V REG 1 REGULATOR R 12 ...

Page 2

ABSOLUTE MAXIMUM RATINGS PARAMETER Supply Voltage Power Dissipation Operating Temperature Range Storage Temperature Range CLASS 1 ESD SENSITIVITY ELECTRICAL CHARACTERISTICS Conditions: Input Level V = -97dBV, Frequency = 5 kHz, Temperature = 25 ...

Page 3

... C4 82n Fig. 2 Typical Hearing Instrument Application 48k - 47n 48k 50k 8k4 MPO GS3023 100k No components connected to pin 1.3V 48k ES3126 47n 2 2 48k 8k4 4 GS3023 100k 521 - ...

Page 4

... COMPRESSION REFERENCE CONTROL 68k - A 12k - B 50k 50k 50k Fig. 4 Characterization Circuit (used to generate typical curves 2µ2 + REC 5 ES3126 100k FAST AVERAGE DETECTOR RECTIFIER V B 48k - 47n 48k 8k4 50k C4 82n GS3023 15k 5 50k 4 ...

Page 5

V =-96dBV -10 -15 20 100 1k FREQUENCY (Hz) Fig. 5 Frequency Response for Different Input Levels 30 R =100k -50dBV ...

Page 6

-60 22k 47k -70 100k -80 -90 -100 -90 -80 -70 -60 -50 INPUT LEVEL (dBV) Fig. 10 I/O Transfer Function for Different R 1 ...

Page 7

... MAX (2.29) Gennum Corporation assumes no responsibility for the use of any circuits described herein and makes no representations that they are free from patent infringement. 0.180 (4.57) GS3023 XXXXXX Dimension units are in inches. Dimensions in parenthesis are in millimetres converted from inches and include minor rounding errors ...

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