GA3204 Просмотр технического описания (PDF) - Gennum -> Semtech
Номер в каталоге
Компоненты Описание
производитель
GA3204 Datasheet PDF : 8 Pages
| |||
Multimemory Programmable
DynamEQ®II - GA3204
PRELIMINARY DATA SHEET
FEATURES
• DynamEQ®II flexibility
• six programmable parameters
• four memories
• 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 0.060in.
(5.08 x 2.92 x 1.52mm)
DESCRIPTION
The GA3204 programmable hybrid is composed of a
DynamEQ®II Wide Dynamic Range Compression signal
processor and the GP523 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 GA3204 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.
Four independent memories add to hybrid flexibility.
The output stage is designed as a preamplifier for the class D
integrated receiver.
The GA3204 hybrid code programmed into GP523 is “1”.
VREG 1
IN 2
GND2 3
GND1 4
C8
8n5
C1
81n
45k5
R2
C2
81n
VB
7
C5
C14
8n
7n4
1M
C6
83n
2M
REG.
FAST
AVERAGE
DETECTOR
SLOW
AVERAGE
DETECTOR
R3 185k
R6 185k
85k6
42k8
3k3
CONTROL
RAGC_IN
10k
-A
1
RECT.
X
RH
24 dB / Oct
High Frequency
Expander/Compressor
BAND SPLIT
12k
FILTER
RL
13k1
Low Frequency
Expander/Compressor
GA3204
GP523
VB
48k
-B
-C
C4
48k 92n
11k
6 OUT
SDA 10
MS 5
C3
C7
80n
0µ14
R5
92k
R8
R1
92k
64k
R4 R7
184k 460k
All resistors in ohms, all capacitors in farads, unless otherwise stated.
BLOCK DIAGRAM
9
8
BIN
BOUT
Revision Date: June 2000
Document No. 522 - 17 - 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
Share Link: 