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零件编号
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CXA1940N 查看數據表(PDF) - Sony Semiconductor
零件编号
产品描述 (功能)
生产厂家
CXA1940N
4ch. Read/Write Amplifier for Thin Film Head of Hard Disk Drive
Sony Semiconductor
CXA1940N Datasheet PDF : 16 Pages
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Test Circuit 1
×
100
1k 1k
LPF
AMP
V
CC
V
CC
5V 5V
to 15MHz
V
1µ
SG3
A
I4
V5
×
1
AMP
ba
V
V4
5V
1µ 1µ
V3 V2
VV
ab ab
ba ba ab ab
S12 S11
AA
S10
8.2k
I8 I7
20 19 18 17 16
S9 S8
AA
I6 I5
15 14
S7
5V
0V
500kHz
PG
PG1
abc
5.1k
S6
AA
I3 I2
13 12 11
V1
V
Test Circuit 2
1 2 3 4 5 6 7 8 9
10
S1
S2
S3
S4
ab a b ab a b ab a b ab ab
S5
ab c d e
a bc d e
A
I1
33
0.1µ
0.1µ
SG2
0.1µ
Fig. 1
SG1
1k 1k
×
1
AMP
5V
1µ
1µ 1µ
5V
PG
PG
8.2k
PG
PG
5.1k
0V
20 19 18 17 16 15 14 13 12 11
CXA1940N
1 2 3 4 5 6 7 8 9
10
1µH
1µH
1µH
1µH
Fig. 2
Note) Write current is measured with current probe. Use an oscilloscope to test items related to time.
—8—
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