Philips TDA5360

1998 July 30

Philips Semiconductors Objective Specification, Revision 2.2

Pre-Amplifier for Hard Disk Drive with

MR-Read / Inductive Write Heads TDA5360

12.3 Write Charateristics

Unless otherwise specified, recommended operating conditions apply,

IW=50mA, LH=75nH, RH = 10Ω, fDATA=5MHz, Ambient temperature.

SYMBOL PARAMETERS CONDITIONS MIN TYP MAX UNIT

IWR Write Current Range 10 30.8 50.3 mAPK

∆IWR / IWR Write Current Tolerance -7 7%

Differential Head Voltage

Swing Iwr = 50mA TBD 16 VPP

IUH Unselected Head Current

Glitch IW = 50mA 1mAPK

fDATA Write Data Frequency for

Safe Condition FLT = Low 1MHz

RODifferential Output

Resistance 30 60 Ohm

CODifferential Output

Capacitance 6pF

ASYM Asymmetry

(ASYM = |tr-tf| ) Write Data has 50% duty cycle &

0.5ns rise/fall time, load=short 0.1 ns

tr , tfRise/Fall Time

(-0.8 * IWR => +0.8 * IWR)10-90%; IW = 50mA

LH=75nH, RH=10Ω

0.84 ns

TWSET Write Current Settling Time IWR = 50mA,

LH=75nH, RH=10Ω

2.5 ns

WCOV Write Current Overshoot IW = 50mA,

LH = 75 nH, RH = 10Ω

WCP0,1,2 = 000

20 %