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PDF GS3023 Data sheet ( Hoja de datos )
| Número de pieza | GS3023 | |
| Descripción | CIC Size DynamEQ I Dynamic Equalizer - Class D | |
| Fabricantes | Gennum | |
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CIC Size DynamEQ® I
Dynamic Equalizer - Class D
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)
cleanly
• designed for CIC instruments
• 2:1 compression of high frequencies
• designed to drive class D integrated receivers
• 65% smaller by volume than DynamEQ® I (GS3011)
• 50% smaller by volume than DynamEQ® I (GS3021)
STANDARD PACKAGING
• 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® I (GS3023) hybrid is a dual channel level dependent
input compression amplifier.
GS3023 - DATA SHEET
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.
VB CSAD
13 11
CFAD
14
C6
0µ1
VREG 1
REGULATOR
100k
SLOW
AVERAGE
DETECTOR
100k
FAST
AVERAGE
DETECTOR
RTH 12
68k
CURRENT
REFERENCE
2:1
COMPRESSION
CONTROL
RECTIFIER
VB
CHP 10
IN 9
C1
3n9
-A
12k
-C
MGND 6
GND 8
C2
0µ1
-B
50k
50k 50k
50k
C4
C3 0µ1 82n
7
All resistors in ohms, all capacitors in farads unless otherwise stated.
Patent Pending.
ABOUT
2
CIN
FUNCTIONAL BLOCK DIAGRAM
Revision Date: May 1998
48k
D
48k
8k4
5 OUT
C5
47n
4 MPO
3
COUT
GS3023
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: [email protected]
1 page  
www.DataSheet4U.com
35
VIN=-96dBV
30
VIN=-88dBV
25
VIN=-80dBV
20
VIN=-70dBV
15
VIN=-60dBV
10
5 VIN=-40dBV
0 VIN=-20dBV
-5
-10
-15
20
100 1k
FREQUENCY (Hz)
10k 20k
Fig. 5 Frequency Response for Different Input Levels
30
25 VIN = -50dBV
20
15
RVC=100kΩ
RVC=47kΩ
RVC=22kΩ
10
RVC=15kΩ
5
0
-5
-10
-15
20 100 1k 10k 20k
FREQUENCY (Hz)
Fig. 7 Frequency Response for Different RVC Values
-10
-20
-30 1kHz
-40 2kHz
5kHz
-50
RTH = ∞
-60
-70
-80
-90
-100
RTH = 0
-90 -80 -70
-60 -50
1kHz
2kHz
5kHz
-40 -30 -20 -10
0
INPUT LEVEL (dBV)
Fig. 6 I/O Transfer Function for Different Test
Frequencies. Shown for Min/Max RTH Resistors Values
35
VIN=-96dBV
30
25
20 CHP=100nF
CHP=68nF
15
CHP=33nF
10
CHP=10nF
5 CHP= No capacitor
0 VIN=-20dBV
-5
-10
-15
20
100 1k
FREQUENCY (Hz)
10k 20k
Fig. 8 Corner Frequency vs CHP Capacitor Value
35
30
25
20
15
10
5
0
-5
-10
-15
20
RTH = ∞
= 100kΩ
= 47kΩ
= 22kΩ
=0
VIN=-96dBV
100 1k
FREQUENCY (Hz)
10k 20k
Fig. 9 Frequency Characteristics for Different
RTH Values
5
521 - 15 - 03
5 Page | ||
| Páginas | Total 7 Páginas | |
| PDF Descargar | [ Datasheet GS3023.PDF ] | |
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