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