V
B=
1.3VDC
+
6.8
+
6.8
+
6.8
MIC
0.01
2
1
2.2
3
4
V
C=
10k
6
0.1
1
4
6
5
.0.047
8
470 TYP
LC506
5
LC/LD549
2 3
7
G
T
10k
NC
All resistors in ohms, all capacitors in farads unless otherwise stated
Fig. 3 Typical Hearing Aid Circuit
41.0
532
40.2
524
39.4
516
A
V
(dB)
38.6
I
Q
(µA)
0.9
1.0
1.1
1.2
1.3
1.4
1.5
1.6
1.7
1.8
508
37.8
500
37.0
492
0.9
1.0
1.1
1.2
1.3
1.4
1.5
1.6
1.7
1.8
V
B
(V)
V
B
(V)
Fig. 4 Volume Gain vs Battery Voltage
Fig. 5 Quiescent Current vs Battery Voltage
800
46
700
44
I
Q
(µA)
600
42
500
A
V
(dB)
-20
-10
0
10
20
30
40
50
60
70
40
400
38
300
36
-20
-10
0
10
20
30
40
50
60
70
TEMPERATURE
°C
TEMPERATURE (°C)
Fig. 6 Quiescent Current vs Temperature
500 - 25 - 09
Fig. 7 Gain vs Temperature
4
GENNUM [ GENNUM CORPORATION ]
