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TDA5155 Datasheet(PDF) 6 Page - NXP Semiconductors

Part No. TDA5155
Description  Pre-amplifier for Hard Disk Drive HDD with MR-read/inductive write heads
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Maker  PHILIPS [NXP Semiconductors]
Homepage  http://www.nxp.com
Logo 

 6 page
background image
1997 Apr 08
6
Philips Semiconductors
Preliminary specification
Pre-amplifier for Hard Disk Drive (HDD)
with MR-read/inductive write heads
TDA5155
7
PINNING
SYMBOL PAD
DESCRIPTION
VCC(WD)
1
supply voltage for the write drivers
GND1
2
ground connection 1
HUS
3
head unsafe output
WDIx(v)
4
write data input (differential, voltage
input)
WDIy(v)
5
write data input (differential, voltage
input)
WDIx(i)
6
write data input (differential, current
input)
WDIy(i)
7
write data input (differential, current
input)
R/W
8
read/write (read = active HIGH,
write = active LOW)
SEN
9
serial bus enable
SDATA
10
serial bus data
SCLK
11
serial bus clock
GND2
12
ground connection 2
RDx
13
read data output (differential x
− y)
RDy
14
read data output (differential x
− y)
GND3
15
ground connection 3
VCC
16
supply voltage
Rext
17
10 k
Ω external resistor
GND4
18
ground connection 4
0Wx
19
inductive write head connection for
head H0 (differential x
− y)
0Wy
20
inductive write head connection for
head H0 (differential x
− y)
0Rx
21
MR-read head connection for head
H0 (differential x
− y)
0GND
22
ground connection for head H0
0Ry
23
MR-read head connection for head
H0 (differential x
− y)
1Wx
24
inductive write head connection for
head H1 (differential x
− y)
1Wy
25
inductive write head connection for
head H1 (differential x
− y)
1Rx
26
MR-read head connection for head
H1 (differential x
− y)
1GND
27
ground connection for head H1
1Ry
28
MR-read head connection for head
H1 (differential x
− y)
2Wx
29
inductive write head connection for
head H2 (differential x
− y)
2Wy
30
inductive write head connection for
head H2 (differential x
− y)
2Rx
31
MR-read head connection for head
H2 (differential x
− y)
2GND
32
ground connection for head H2
2Ry
33
MR-read head connection for head
H2 (differential x
− y)
3Wx
34
inductive write head connection for
head H3 (differential x
− y)
3Wy
35
inductive write head connection for
head H3 (differential x
− y)
3Rx
36
MR-read head connection for head
H3 (differential x
− y)
3GND
37
ground connection for head H3
3Ry
38
MR-read head connection for head
H3 (differential x
− y)
4Wx
39
inductive write head connection for
head H4 (differential x
− y)
4Wy
40
inductive write head connection for
head H4 (differential x
− y)
4Rx
41
MR-read head connection for head
H4 (differential x
− y)
4GND
42
ground connection for head H4
4Ry
43
MR-read head connection for head
H4 (differential x
− y)
5Wx
44
inductive write head connection for
head H5 (differential x
− y)
5Wy
45
inductive write head connection for
head H5 (differential x
− y)
5Rx
46
MR-read head connection for head
H5 (differential x
− y)
5GND
47
ground connection for head H5
5Ry
48
MR-read head connection for head
H5 (differential x
− y)
6Wx
49
inductive write head connection for
head H6 (differential x
− y)
6Wy
50
inductive write head connection for
head H6 (differential x
− y)
6Rx
51
MR-read head connection for head
H6 (differential x
− y)
6GND
52
ground connection for head H6
6Ry
53
MR-read head connection for head
H6 (differential x
− y)
7Wx
54
inductive write head connection for
head H7 (differential x
− y)
SYMBOL PAD
DESCRIPTION




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