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參數資料
| 型號： | GS3026 |
| 廠商： | Electronic Theatre Controls, Inc. |
| 英文描述： | AGC-O in a CIC Size Hybrid |
| 中文描述： | 自動增益控制在一個議會大小?混合 |
| 文件頁數： | 1/7頁 |
| 文件大?。?/td> | 99K |
| 代理商： | GS3026 |
CIC suitable package size
8:1 compression ratio
38 dB maximum system gain,
adjustable over a 38 dB range
output compression threshold,
adjustable over 16 dB range
designed to drive a class D integrated receiver
averaging detector
STANDARD PACKAGING
Hybrid typical dimensions:
0.162 in x 0.094 in x 0.070 in
(4.11 mm x 2.39 mm x 1.78 mm)
C1
0
μ
1
C2
0
μ
1
C3
0
μ
15
OUT
IN
GND
C4
33n
C5
22n
GS3026
12k
48k
V
B
REG.
48k
-A
RECT.
B
8:1
COMPRESSION
CONTROL
V
B
1
Rvc
4
VREG
R
TH
6
2
3
5
7
GS3026 - DATA SHEET
AGC-O in a CIC Size Hybrid
FEATURES
DESCRIPTION
The GS3026 CIC hybrid features AGC-O capability for low
distortion output limiting and offers a package size suitable
for CIC instruments. The circuit consists of a newly designed
AGC preamplifier and output stage, capable of driving the
class D integrated receiver. The compression control
circuit varies the current controlled resistance, connected
between the input and output of the AGC preamplifier. The
compression circuit operates with an 8:1 compression
ratio and uses an averaging detector with a time constant
of 270 ms, selected to provide optimal sound quality over
the full range of sound and listening environments. The
actual attack and release times are typically 40 ms and 150
ms respectively when the circuit is fully in the compression
region of operation (measured times will vary depending
on gain and threshold settings).
The system gain and compression control can be adjusted
by the choice of two independent resistors. Maximum
system gain is 38 dB and it can be adjusted within a 38 dB
range. The output compression threshold can be adjusted
within a 16 dB range.
BLOCK DIAGRAM
All resistors in ohms, all capacitors in farads unless otherwise stated.
Revision Date: July 1998
Document No. 521 - 71 - 02
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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