tda5360uk NXP Semiconductors, tda5360uk Datasheet - Page 19

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

Philips Semiconductors
1998 July 30
8
9
11
Pre-Amplifier for Hard Disk Drive with
MR-Read / Inductive Write Heads
Measurement Register M4...M0 = 5 bits for Rmr/Temperature digitazation (read back only bits)
Operating mode
Register
Thermal Asperity
Compression
RANGE1,RANGE0 = 2bits to define which measurement to be done
(0,0)
(0,1) and (1,0) :
(1,1) = Temperature measurement
DIGON = is set HIGH to launch a digitazation
( Note 8 )
SIOLVL = level of SDATA when reading back a register
RSTDMY = define functionality of DRN pin
( Note 9a)
MODE1,MODE0 = 2 power management control bits.
(0,0)
(0,1)
(1,0)
(1,1)
(Note 9b)
ENFST = when TAC is enable, this bit defines BFAST functionality
( Note 11a)
TAU = Low Pole Frequency time constant of the TAC
TACT2,TACT1,TACT0 = 3 bits to determine the TAC threshold
(0,0,0) =
(0,0,1) =
(0,1,0) =
(0,1,1) =
(1,0,0) =
(1,0,1) =
(1,1,0) =
(1,1,1) =
( Note 11b )
if LOW,
if HIGH,
Sleep Mode
Standby Mode
Active Mode or STW one head
Test Mode or STW two heads
LOW
HIGH
=
=
4.00 mV
2.97 mV
2.21 mV
1.64 mV
1.22 mV
0.91 mV
0.67 mV
0.50 mV
3.3V compatible.
5.0V compatible.
RMR measurement for
Rmr = 698 / (15.5 + M0 + 2*M1 + 4*M2 + 8*M3 + 16*M4)
RMR measurement for
Rmr = 2094 / ( 21 + M0 + 2*M1 + 4*M2 + 8*M3 + 16*M4 )
Temp = 473K - 4.6K * (M0 + 2*M1 + 4*M2 + 8*M3 + 16*M4)
700 ns
70 ns
19
Objective Specification, Revision 2.2
15
40
< Rmr < 46
< Rmr < 90
TDA5360