LC549 查看數據表（PDF） - Gennum -> Semtech
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LC549 Datasheet PDF : 5 Pages
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VB=1.3VDC
+
6.8
+
6.8
+
6.8
VC=10k
MIC
3
2
46
14
65
0.01
LC506
0.1
LC/LD549
470 TYP
.0.047
1
5
23
7
8
2.2
GT
NC
10k
All resistors in ohms, all capacitors in farads unless otherwise stated
Fig. 3 Typical Hearing Aid Circuit
41.0
40.2
39.4
38.6
37.8
37.0
0.9 1.0
1.1 1.2 1.3 1.4 1.5
VB (V)
1.6 1.7 1.8
Fig. 4 Volume Gain vs Battery Voltage
532
524
516
508
500
492
0.9 1.0
1.1 1.2 1.3 1.4 1.5 1.6 1.7 1.8
VB (V)
Fig. 5 Quiescent Current vs Battery Voltage
800
700
600
500
400
300
-20 -10
0 10 20 30 40 50 60 70
TEMPERATURE °C
Fig. 6 Quiescent Current vs Temperature
500 - 25 - 09
4
46
44
42
40
38
36
-20 -10
0 10 20 30 40 50 60 70
TEMPERATURE (°C)
Fig. 7 Gain vs Temperature
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