TDA5155 Просмотр технического описания (PDF) - Philips Electronics

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TDA5155

Pre-amplifier for Hard Disk Drive (HDD) with MR-read/inductive write heads

Philips Electronics 

Philips Semiconductors

Pre-amplifier for Hard Disk Drive (HDD)

with MR-read/inductive write heads

Table 1 Noise figure

RMR (Ω)

20

25

30

IMR = 7 mA

2.7

2.8

2.9

F (dB)

IMR = 10 mA

2.9

3.0

3.1

handbook, full pagewidth

R/W

Preliminary specification

TDA5155

IMR = 15 mA

3.1

3.3

3.5

RDx-RDy

trec(W-R)

toff(R)

MGG985

Fig.5 Timing diagram of the reader: write-to-read switching on the same logic head.

handbook, full pagewidth

SEN

RDx-RDy

tsw(R)

MGG986

Fig.6 Timing diagram of the reader: typical head, current and standby-to-read characteristics.

1997 Apr 08

22

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