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參數(shù)資料
| 型號： | LD549 |
| 廠商： | Electronic Theatre Controls, Inc. |
| 英文描述： | High Power Class B Output Stage |
| 中文描述： | 高功率輸出級B級 |
| 文件頁數(shù)： | 4/5頁 |
| 文件大?。?/td> | 79K |
| 代理商： | LD549 |
4
500 - 25 - 09
6.8
470 TYP
.0.047
+
+
+
V
B=
1.3VDC
V
C=
10k
G
T
10k
LC506
LC/LD549
2.2
0.1
0.01
NC
4
4
3
3
2
2
7
1
1
6
6
5
5
8
MIC
6.8
6.8
TEMPERATURE
°
C
Fig. 4 Volume Gain vs Battery Voltage
Fig. 5 Quiescent Current vs Battery Voltage
Fig. 6 Quiescent Current vs Temperature
Fig. 7 Gain vs Temperature
-20 -10 0 10 20 30 40 50 60 70
41.0
40.2
39.4
38.6
37.8
37.0
46
44
42
40
38
36
A
V
(
V
B
(V)
V
B
(V)
I
Q
μ
A
I
Q
μ
A
-20 -10 0 10 20 30 40 50 60 70
TEMPERATURE (
°
C)
A
V
(
All resistors in ohms, all capacitors in farads unless otherwise stated
Fig. 3 Typical Hearing Aid Circuit
800
700
600
500
400
300
0.9 1.0 1.1 1.2 1.3 1.4 1.5 1.6 1.7 1.8
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
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