GA3201 데이터 시트보기 (PDF) - Gennum -> Semtech
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GA3201 Datasheet PDF : 8 Pages
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FEATURES
• DynamEQ® II flexibility
• six programmable parameters
• 24dB/oct state variable filter
• twin average detectors
• handles high input levels
• drives class D integrated receivers
thinSTAX™ PACKAGING
Hybrid typical dimensions:
0.200 x 0.115 x 0.066in.
(5.08 x 2.92 x 1.68mm)
GA3201 Programmable
DynamEQ®II
PRELIMINARY DATA SHEET
DESCRIPTION
The GA3201 programmable hybrid is composed of a
DynamEQ®II Wide Dynamic Range Compression signal
processor and the GP522 controller memory chip. The
hybrid incorporates 24dB/oct filtering.
The gain and frequency response are dependent on the user’s
environment. The Twin Average Detector circuit is optimized
for sound quality during normal listening without sacrificing
comfort during sudden loud sounds.
The GA3201 features six programmable parameters:
independent compression ratio adjustment in the High and
Low frequency channels, VC adjustment, threshold
adjustment, crossover frequency adjustment and MPO
adjustment.
The output stage is designed as a preamplifier for the class D
integrated receiver.
VREG 1
49k5
R2
IN 2
GND 3
SDA 8
PGI
VB
5
GA3201
R3 200k
R6 200k
GP522
C8
C6
C5
8n5
83n
7n4
VBAT
CSAD
CFAD
2M
1M
REGULATOR
C1 VREG
81n
SLOW
AVERAGE
DETECTOR
FAST
AVERAGE
DETECTOR
1:1
2:1 4:1
85k6 42k8
RHI
RLO
RTH
1
CONTROL
RECTIFIER
3k3
X
VB
R
AGC_IN
C2
73n
IN 10k
RH
High Frequency
-A
24dB/oct
BAND SPLIT
Expander / Compressor
FILTER
12k
RL
48k
OUT C4
-B
-C
92n
48k
GND
AOUT REC
13k1
RFC
Low Frequency
Expander / Compressor
FOUT
11k
MPO
BIN
BOUT
R5
C3
C7
100k
73n
R1 69k5
0µ14
R4 R7
200k 500k
4 OUT
All resistors on ohms, all capacitors in farads, unless otherwise stated.
BLOCK DIAGRAM
7
6
BIN
BOUT
Revision Date: September 1999
Document No. 521 - 92 - 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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