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Philips TDA5360 User Manual

Page 23

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1998 July 30

Philips Semiconductors

Objective Specification, Revision 2.2

Pre-Amplifier for Hard Disk Drive with
MR-Read / Inductive Write Heads

TDA5360

23

The aim of the TAC is to limit the amplitude and the duration of the perturbation seen at the reader output.
Because thermal asperity amplitude is not constant, the TAC need some threshold programmation to define
the sharpness of the response.

note that reducing the TAC threshold also impact the Low corner frequency value of the read amplifier.