TDA5360 Datasheet, PDF (29/34 Pages) NXP Semiconductors – Pre-Amplifier for Hard Disk Drive with MR-Read / Inductive Write Heads

Philips Semiconductors
Pre-Amplifier for Hard Disk Drive with
MR-Read / Inductive Write Heads
Objective Specification, Revision 2.2
TDA5360
12.3 Write Charateristics
Unless otherwise specified, recommended operating conditions apply,
IW=50mA, LH=75nH, RH = 10Ω, fDATA=5MHz, Ambient temperature.
SYMBOL PARAMETERS
IWR
Write Current Range
∆I_WR / I_WR Write Current Tolerance
Differential Head Voltage
Swing
IUH
Unselected Head Current
Glitch
fDATA
Write Data Frequency for
Safe Condition
RO
Differential Output
Resistance
CONDITIONS
Iwr = 50mA
IW = 50mA
FLT = Low
MIN
10
-7
TBD
1
TYP
30.8
16
MAX
50.3
7
1
UNIT
mA_PK
%
VPP
mA
PK
MHz
30
60
Ohm
CO
ASYM
tr , tf
TWSET
WCOV
Differential Output
Capacitance
Asymmetry
(ASYM = |tr-tf| )
Rise/Fall Time
(-0.8 * I_WR => +0.8 * I_WR)
Write Current Settling Time
Write Current Overshoot
Write Data has 50% duty cycle &
0.5ns rise/fall time, load=short
10-90%; IW = 50mA
L_H=75nH, R_H=10Ω
IWR = 50mA,
L_H=75nH, R_H=10Ω
IW = 50mA,
L_H = 75 nH, R_H = 10Ω
WCP0,1,2 = 000
6
pF
0.1
ns
0.84
ns
2.5
ns
20
%
1998 July 30
29