GM3038 Просмотр технического описания (PDF) - Gennum -> Semtech
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GM3038 Datasheet PDF : 8 Pages
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VB
VREG
7
C1
0µ1
VB
1
C6 C5
VDD
0µ22 10n
R5S R5R
R5
VB
CSAD
CFAD
1:1A 1:1B 1MΩ 4:1
18
7 1M
2 1M
16
5
VREG 8 REGULATOR
SLOW
AVERAGE
DETECTOR
53.5kΩ
FAST
AVERAGE
DETECTOR
85.6kΩ
R6R
R6S
R6
RHI RLO
4
3
600kΩ
GM3038
ER102
Any
Knowles or
Microtronic
microphone
IN
6
GND
8
RTH 19
R3R
50k
R3
C2
150kΩ
11
10k
0µ2
IN
VSS
9
GND
SDA
5
SDA
All resistors in ohms, all capacitors
in farads, unless otherwise stated
CONTROL
R
AGC_IN
-A
10
AOUT
1
RECTIFIER
X
24 dB / Oct
BAND SPLIT
FILTER
12k
12
REC
14k
13
RFC
VB
VB
RH
High Frequency
Expander / Compressor
RL
Low Frequency
Expander / Compressor
R4
300kΩ
14
FOUT
48k
OUT C4 OUT
-B
-C
20
2
0µ1
48k
2µ2
8k4
16
17
BIN
BOUT
15 MPO
R2
R2R
150kΩ
Any
Knowles
class D
integrated
receiver
C3
R4R
0µ1
Fig. 2 Typical Application Circuit
C7
0µ22
4
BIN
3
RVC BOUT
100kΩ LOG
VB = 1.3V
VB
1
VDD
VB
18
C6 C5
0µ22 10n
CSAD
CFAD
7 1M
2 1M
R5S R5R
R5
1:1A 1:1B 1MΩ 4:1
16
5
R6R
R6S
R6
RHI RLO
4
3
600kΩ
GM3038
ER102
7
C1
2µ2
0µ1
VREG 8 REGULATOR
SLOW
AVERAGE
DETECTOR
53.5kΩ
FAST
AVERAGE
DETECTOR
85.6kΩ
Table of Defaults
R2 - set 0
R3 - set 15
VIN =
-80dBV 6
Pink
Noise
Generator
8
RTH 19
R3R
50k
R3
C2
150kΩ
11
10k
0µ2
IN
VSS
9
GND
to programmer 5
SDA
CONTROL
R
AGC_IN
-A
10
AOUT
1
RECTIFIER
X
24 dB / Oct
BAND SPLIT
FILTER
12k
12
REC
14k
13
RFC
RH
High Frequency
Expander / Compressor
RL
Low Frequency
Expander / Compressor
R4
300kΩ
14
FOUT
R4 - set 15
R5 - set 31
VB
R6 - set 15
48k
OUT C4
-B
-C
20
2
0µ1
48k
50k
8k4
16
17
BIN
BOUT
15 MPO
R2
R2R
150kΩ
All resistors in ohms, all capacitors
in farads, unless otherwise stated
C3
R4R
0µ1
C7
0µ22
4
BIN
3
RVC BOUT
100kΩ
Fig. 3 Characterization Circuit (Used to generate typical curves)
521 - 62 - 04
4
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