cxa3239tn Sony Electronics, cxa3239tn Datasheet - Page 12

• Manufacturer Part Number: cxa3239tn
• Description: 6/4-channel Read/write Amplifier For Gmr-ind Head Hard Disk Drive
• Manufacturer: Sony Electronics

No.
W1
W2
W3
W4
W6
W7
W8
W9
P1
P2
U1
U2
U3
U4
U5
U6
U7
Read Safety Characteristics
Write Characteristics
Write Safety Characteristics
MR head open threshold
MR head short threshold
Write current range
Write current accuracy
Write current resolution
Leakage current
Damping register
Write current propagation
delay time
Write current rise/fall time
Erase current accuracy
Write head open threshold
Head voltage when short
to GND
WD frequency too low
Write safety detect time
Low V
Low V
Low V
hysteresis
CC
CC
CC
threshold
threshold
threshold
Item
Symbol
VWthH
VWthL
MRop
MRsh
T
Vhys
I
f
Tpd
R
T
E
R
LEAK
I
E
WDL
R
R
V
WR
WS
OP
IW
/T
IW
IE
D
G
F
Head X - Head Y
Head X - Head Y
IB= ‘000’ to ‘011’
DAC code= ‘0000’ to
R
4 bit DAC
Unselected head
L
Write DATA to 50 % of Write current
R
V
DAC code= ‘0101’
Detect open head
Detect short to GND
T1 : 2 transitions on WDX/WDY
Fault detected
Fault removed
H
CC
H
H
=0, R
=0
=15 , L
Measurement conditions
=3.5 V
—12—
H
=0
H
=150 nH, I
W
‘1111’
=31 mA
Min.
600
320
–18
0.5
3.7
3.9
15
15
–7
Typ.
750
420
200
2.5
1.2
3.9
4.1
50
–9
CXA3238TN/CXA3239TN
2
Max.
900
200
520
300
+T1
1.4
0.1
1.8
4.1
4.3
90
45
+7
10
0
MHz
Unit
mV
mV
mA
mA
mV
µA
ns
ns
ns
%
%
V
V
V
V