GA3203(2000) View Datasheet(PDF) - Gennum -> Semtech
Part Name
Description
View to exact match
GA3203 Datasheet PDF : 9 Pages
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VB = 1.3V
7
R4
184k
R3
185k
C21
C20
C19
8n
10n
100n
R6
185k
R5
92k
C18
100n
GA3203
GP523
1
3k9
2
3
10
5
to
programmer
C1
R2 80n
45k5
R9
18k
C2
8n
C3
80n
REGULATOR
FAST
SLOW
DETECTOR DETECTOR
1
1
X
X
CONTROL
RECTIFIER
I REF
-A
NOTCH
Hp
24 dB / Oct
BAND SPLIT
FILTER
Lp
COMPRESSOR
COMPRESSOR
SQUELCH
DETECTOR
AGC-O
RECTIFIER
C17
20n
-B
Ragc
-C
Rsquelch C16
30n
C4
15n
C6
20n
R7
R1
460k
64k
SW
C13
150n
R8
92k
C14
C15
100n
4n
6
50k
4
All resistors in ohms, all capacitors in farads, unless otherwise stated.
8
9
Fig. 3 Characterization circuit (used to generate typical curves)
TABLE OF DEFAULTS
R1 - Tap 15
R2 - Tap 15
R3 - Tap 0
R4 - Tap 15
SW - CLOSED
R5 - Tap 4
R6 - Tap 0
R7 - Tap 24
R8 - Tap 23
MICROPHONE
+
5
MS
4
GND
3
GND
2
IN
1
VREG
MEMORY
SELECT
2µ2
6
OUT
+
7
VB
8
BIN
9
BOUT
RECEIVER
+
_
BATTERY
10
SDA
TO PROGRAMMER
Fig. 4 Typical Assembly Diagram
5
522 - 13 - 02
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