Philips TDA5360 - Manual (Page 6)

1998 July 30
Philips Semiconductors Objective Specification, Revision 2.2
Pre-Amplifier for Hard Disk Drive with
MR-Read / Inductive Write Heads
TDA5360
6
6 BLOCK DIAGRAM
H
E
A
D
M
U
X
d/dt
Av
MUX
SERIAL
INTERFACE
FAULT
DETECTION
B
U
F
F
E
R
MR BIAS
/ POWER
SETTING
WRITE
BANDGAP
THERMAL
ASPERITY
DETECTOR
RDp
RDn
FLT
Rext
WDp
WDn
SDATA
SCLK
SEN
+
CURRENT
RFE
hybrid
sense
R
M
R
TA handling
Rin:2bits
voltage
p
re
-d
ri
v
e
r
b
o
o
s
t
1
b
it
boost:2bits
WDI
V/I
Interface
1 bit
voltage
driven
p
re
-d
ri
v
e
r
b
o
o
s
t:
1
b
it
CODING
Av
1.5 bit
On/Off
T
A
C
O
R
R
E
C
T
O
R
3bits
DIGITIZER
Rmr measure
temperatue
WDI
Read Back End
RFE
hybrid
sense
R
M
R
Rin:2bits
V / I
out
CURRENT
4 bits
5 bits
5 bits
TA handling
driven