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零件编号
产品描述 (功能)
KA9270 查看數據表(PDF) - Samsung
零件编号
产品描述 (功能)
生产厂家
KA9270
AUDIO FILTER
Samsung
KA9270 Datasheet PDF : 7 Pages
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7
KA9270
AUDIO FILTER
TEST CIRCUIT
CH2
OUTPUT
(Vo)
3.3
§Þ
10K
47
§Þ
0.01
§Þ
Vcc
1/2 Vcc
0.0015
§Þ
5.6K
1M
0.0012
§Þ
12K
330pF
+
4.7
§Þ
27K
27K
+
5.6K 5.6K
20
19
18
+ 4.7
§Þ
17
16
15
14
1
3
12
11
Vcc
LPF2
-
-
+
+
DE-AMP2
-
+
-
+
BUFFER2
CH2-INPUT
(from SIGNAL
GENERATOR
5K
OUTPUT)
+
VI
-
1/2 Vcc
+
-
LPF1
MUTE
SW
DE-EM
SW
+
-
DE-AMP1
BUFFER1
+
-
1
CH1
OUTPUT
(Vo)
2
3
4
330pF
5.6K
5
6
7
8
9
5.6K
27K
+
27K
4.7
§Þ
+
3.3
§Þ
5.6K
0.0015
§Þ
10K
MUTE
CONTROL
SIGNAL
(MUTE)
DE-EMPHASIS
CONTROL
SIGNAL
(DE-EM)
0.0012
§Þ
12K
1M
10
5K
CH1-INPUT
(from SIGNAL
GENERATOR
OUTPUT)
+
VI
-
Fig. 2
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