TDA5155X Philips Semiconductors, TDA5155X Datasheet - Page 22
TDA5155X
Manufacturer Part Number
TDA5155X
Description
Pre-amplifier for Hard Disk Drive HDD with MR-read/inductive write heads
Manufacturer
Philips Semiconductors
Datasheet
1.TDA5155X.pdf
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Philips Semiconductors
Table 1 Noise figure
1997 Apr 08
handbook, full pagewidth
handbook, full pagewidth
Pre-amplifier for Hard Disk Drive (HDD)
with MR-read/inductive write heads
R
MR
Fig.6 Timing diagram of the reader: typical head, current and standby-to-read characteristics.
20
25
30
( )
Fig.5 Timing diagram of the reader: write-to-read switching on the same logic head.
RDx-RDy
RDx-RDy
R/W
SEN
I
MR
= 7 mA
2.7
2.8
2.9
t rec(W-R)
t sw(R)
22
I
MR
= 10 mA
2.9
3.0
3.1
F (dB)
t off(R)
MGG986
MGG985
Preliminary specification
I
MR
= 15 mA
3.1
3.3
3.5
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