V
B
16
C6
0µ22
1M
14
C5
10n
1M
10
11
12
13
9
2µ2
C1
0µ1
REGULATOR
SLOW
AVERAGE
DETECTOR
FAST
AVERAGE
DETECTOR
1
15
R =
∞
TH
50k
CONTROL
R
AGC_IN
RH
3.9k
8
C2
0µ2
10k
-A
12 dB / Oct
(24 dB / Oct)
BAND SPLIT
FILTER
High Frequency
Expander / Compressor
-B
-C
0µ1
RL
Low Frequency
Expander / Compressor
14k
5
8k4
48k
50k
48k
C4
17
RECTIFIER
X
Vb
V
IN
6
12k
C3
0µ1
7
2
R
ƒc
= 22k
C7
0µ22
1
3
R
4
= 100k
GS3031
(GS3032)
R
=0
MPO
All resistors in ohms, all capacitors
in microfarads, unless otherwise stated
VC
Fig. 1 Production Test Circuit
RHI
200k Linear
VB
RLO
200k Linear
16
C6
0µ22
1M
14
C5
10n
1M
10
11
12
13
9
C1
0µ1
RTH
100k
Log
REGULATOR
SLOW
AVERAGE
DETECTOR
FAST
AVERAGE
DETECTOR
1
15
50k
R
AGC_IN
RH
High Frequency
Expander / Compressor
48k
C4
-B
-C
0µ1
48k
RL
Low Frequency
Expander / Compressor
14k
8k4
2µ2
Any
Knowles
Class D
receiver
R
MPO
50k
Log
C3
0µ1
7
2
R
ƒc
100k Log
C7
0µ22
1
3
4
2
17
CONTROL
RECTIFIER
X
Vb
VB
C2
8
0µ2
Any Knowles
or
Microtronic
microphone
10k
-A
12 dB / Oct
(24 dB / Oct)
BAND SPLIT
FILTER
6
12k
5
GS3031
(GS3032)
All resistors in ohms, all capacitors
in microfarads, unless otherwise stated
R
VC
100k Log
Fig. 2 Maximum Flexibility Hearing Instrument Application
3
521 - 52 - 02
GENNUM [ GENNUM CORPORATION ]
