CXA1940N Datasheet, PDF (3/16 Pages) Sony Corporation – 4ch. Read/Write Amplifier for Thin Film Head of Hard Disk Drive

CXA1940N
Pin Description
No. Symbol
1
GND
2
H0X
3
H0Y
4
H1X
5
H1Y
6
H2X
7
H2Y
8
H3X
9
H3Y
10
NC
11
WUS
12
WDI
13
VCC
14
HS1
15
HS0
19
R/W
20
PS
Equivalent circuit
2
4
6
2k 2k
8
3
5
7
9
11
12
2.1V
14
15
19
20
Description
VCC
Head.
4 channels provided.
GND
VCC
GND
VCC
1.4V
GND
VCC
2.1V
GND
Write unsafe detection output.
Open collector output. When it is
off in Write mode, it means an
error is detected.
Write data input.
At “High” → “Low”,
input is triggered.
5V power supply
Head select signal input.
Selects one of 4 heads according
to Table 2.
Read/Write signal input.
At “High”: Read,
at “Low”: Write.
Power save signal input.
At “High”: Power save.
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