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8 pad description – Philips TDA5360 User Manual

Page 8

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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

8

8

PAD DESCRIPTION

SYMBOL

Pin

Description

VCC

+5V supply

GND

Ground

VEE

-5V supply

RDP,RDN

output

Read Data, Differential read signal outputs

RWN

logic input

Read/Write : read = HIGH, write = LOW

WDP,WDN

input

Differential PECL or current mode write data input

FLT

output

input

In Write mode, a fault is flagged when FLT is high.
In Read Mode, a fault is flagged when FLT is low.
a 5k

external resistor must be connected between FLT and VCC.

This pad is used as an input in MDS mode.

REXT

a 10k

external resistor must be connected between REXT and GND

SEN

logic input

Serial Enable line. Active High

SCLK

logic input

Serial Clock line.

40 MHz max.

SDATA

logic
input/output

Serial Data line. Bi-directional interface

BFAST

logic input

Controls reader passband or enables the Imr generator depending on the state
of BFCTL bit from Reg.01

DRN

logic input

Selects the dummy head or performs a system reset depending on the state of
RSTDMY bit from Reg.09

RP0...RP11

input

MR head connections, positive end

RN0...RN11

input

MR head connections, negative end

WP0...WP11

output

Write head connections, positive end

WN0...WN11

output

Write head connections, negative end

STWN

logic input

Set Low for Servo Track Write mode only

CS0

logic input

Code for Chip ID

CS1

logic input

Code for Chip ID