tda5360uk NXP Semiconductors, tda5360uk Datasheet - Page 30

• Manufacturer Part Number: tda5360uk
• Description: Pre-amplifier For Hard Disk Drive With Mr-read / Inductive Write Heads
• Manufacturer: NXP Semiconductors

Philips Semiconductors
12.4
Unless otherwise specified, recommended operating conditions apply
Notes:
1. The differential peak to peak voltage swing could be from 0.4V to 1.5V and the common mode should be such that
2. In current mode, a ratio of at least 5 sould exist between the HIGH and LOW level currents.
3. Whatever constant power is programmed, the value of the Imr current can not exceed the limits given in the constant
4. The input referred noise voltage, excluding the noise of the MR resistor iis defined as follows :
1998 July 30
SI
t
t
t
t HS
t RI
t D1
t D2
t
RW
WR
CS
D3
T
Pre-Amplifier for Hard Disk Drive with
MR-Read / Inductive Write Heads
RSET
for any of the two states the maximum High shall be less than Vcc and the minimum LOW shall be more than 2.4V.
current mode.
Switching Characteristics
PARAMETER
Serial Interface timing
R/WN to Write Mode
SEN to Write Mode
R/WN to Read Mode
CS to Read Mode
Head Switching
CS to Unselect
Safe to Unsafe
Unsafe to Safe
Head Current Propagation
Delay
MR Bias Current Settling
Time
vn
2
=
CONDITIONS
(Note 6)
To 90% of write current
To 90% of write current
Reader outputs loaded with high-
pass single ended filters :
R=165 , C=270pF
Writer output shorted
(Note 7)
Reader outputs loaded with high-
pass single ended filters :
R=165 , C=270pF
Reader outputs loaded with high-
pass single ended filters :
R=165 , C=270pF
To 10% write current
50% WDP to 50% FLT
when a low frequency condition
occurs.
50% WDP to 50% FLT
From 50% of WDP to 50% of write
current, load=short
I
(Note 8)
vnout
--------------
MR
Av
= 8mA, R
2
30
–
MR
4
=
k
T RMR
MIN
Objective Specification, Revision 2.2
TYP
175
20
MAX
50
50
1
1
50
1
5
1
TDA5360
UNIT
ns
ns
ns
us
us
ns
us
ns
ns
us