GA3201 Просмотр технического описания (PDF) - Gennum -> Semtech
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GA3201 Datasheet PDF : 8 Pages
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1
Any
Knowles or
Microtronic
microphone
2
49k5
R2
3
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
24 dB / 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
VB
4
OUT
2µ2 Any
Knowles
class D
integrated
receiver
All resistors in ohms, all cpacitors in farads, unless otherwise shown.
VB = 1.3V
Fig. 2 Typical Application Circuit
7
6
RVC
100k LOG
1
2µ2
VIN =
-80dBV
2
PINK
NOISE
GENERATOR
3
49k5
R2
8
TO PROGRAMMER
PGI
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
24 dB / Oct
Expander / Compressor
-A
BAND SPLIT
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
50k
All resistors in ohms, all cpacitors in farads, unless otherwise shown.
7
6
TABLE OF DEFAULTS
Fig. 3 Characterization Circuit (Used to generate typical curves)
R1 - Tap 8
R2 - Tap 0
R3 - Tap 0
R4 - Tap 2
R5 - Tap 15
R6 - Tap 0
R7 - Tap 23
521 - 92 - 02
4
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