
3
522 - 17 - 05
G
GENNUM CORPORATION
Fig. 1 Test Circuit
50k
2
μ
2
3k9
R
VC
VB
116k
C2
81n
GA3204
C1
81n
80n
92n
R3
R4
R6
R5
92k
CONTROL
10k
RECT.
V
B
3k3
REG.
48k
48k
11k
13k1
12k
1
X
- B
- A
- C
24 dB / Oct
BAND SPLIT
FILTER
ExHigh Frequency
Low Frequency
Expander/Compressor
R
AGC_IN
R
H
R
L
R8
92k
R7
C4
C3
C8
R2
GP523
7n4
C5
8n
C6
83n
SLOW
AVERAGE
FAST
AVERAGE
1M
2M
C14
R1
10
5
2
3
4
1
7
6
8
9
42k8
85k6
C7
0
μ
14
45k5
185k
185k
460k
184k
64k
All resistors in ohms, all capacitors in farads unless otherwise stated.
Fig. 2 Typical Application Circuit
V
B
RVC
100k
LOG
VB
Any
Knowles or
Microtronic
microphone
Any
Knowles
class D
integrated
receiver
2
μ
2
C2
81n
GA3204
C1
81n
80n
92n
R3
R4
184k
R6
R5
92k
CONTROL
10k
RECT.
V
B
3k3
REG.
48k
48k
11k
13k1
12k
1
X
- B
- A
- C
24 dB / Oct
BAND SPLIT
FILTER
Expander/Compressor
ExpLow Frequency
R
AGC_IN
RH
R
L
R8
92k
R7
C4
C3
8n5
C8
R2
GP523
7n4
C5
8n
C6
83n
ASLOW
AFAST
1M
2M
C14
R1
10
5
2
3
4
1
7
6
8
9
42k8
85k6
C7
0
μ
14
45k5
185k
185k
64k
All resistors in ohms, all capacitors in farads, unless otherwise stated.