RECEIVER
2µ2
MICROPHONE
VOLUME
CONTROL
TYPICAL PERFORMANCE CURVES
-20
-30
ƒ = 1kHz
R4 - set 15
R5 - set 0
OUTPUT LEVEL (dBV)
-40
-50
R5 - set 31
-60
-70
-80
-90
-100
Used
Settings
0
9
12
14
-90
- 80
-70
-60
-50
16
17
18
19
20
21
-40
-30
23
24
26
28
30
31
-20
GAIN (dB)
INPUT LEVEL (dBV)
Fig. 5 I/O Transfer Function for Different Compression Ratios
(High Frequency Channel)
-20
-30
ƒ = 1kHz
R4 - set 0
R6 - set 0
OUTPUT LEVEL (dBV)
-40
-50
-60
R6 - set 15
-70
-80
-90
-100
GAIN (dB)
-90
-80
-70
-60
-50
-40
INPUT LEVEL (dBV)
Fig. 7 I/O Transfer Function for Different Compression Ratios
(Low Frequency Channel)
+
Fig. 4 Typical Assembly Diagram
-
+
BATTERY
48
44
40
36
32
28
24
20
16
12
8
4
0
0
2
4
6
8
48
44
40
36
32
28
24
20
16
12
8
4
0
-30
-20
0
1
2
3
4
5
6
7
8
9
V
IN
= -80dBV
+
GM3038
TO PROGRAMMER
V
IN
= -80dBV
10 12 14 16 18 20 22 24 26 28 30 31
R5 RESISTOR SET ON ER102 DIE
(set 0 - short, set 31- open)
Fig. 6 High Frequency Gain (Compression Ratio Adjustment)
10 11 12 13
14
15
R6 RESISTOR SET ON ER102 DIE
(set 0 - short, set 15- open)
Fig. 8 Low Frequency Gain (Compression Ratio Adjustment)
5
521 - 62 - 04
GENNUM [ GENNUM CORPORATION ]
