cxa3239tn Sony Electronics, cxa3239tn Datasheet - Page 16

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

Unsafe condition
Bank write control (refer to ‘Bank write current vs Current accuracy’ characteristic curve)
BHV (Buffered Head Voltage)
Head select table
1. Write fault condition
2. Read fault condition
1. Set the Read mode.
2. Force a certain voltage(min.V
#This operation disables all Fault detection.
3. Set V
4. Start the write operation by setting R/XW = “L”.
5. Terminate the write operation by setting R/XW = “H”.
1. Applicable within V
2. Turn BHV on,but turn off MROPN and MRSHT
3. V
FLT is a high level in write fault condition.
FLT is a low level in read fault condition.
BHV
• Open write head leads. f
• Write head leads shorted to ground.
• WD frequency is too low.
• Power supply is out of tolerance.
• Open and short MR head. (This function is set by serial register)
i) Allow 50 % write duty or less.
ii) Low voltage detector is disabled in Bank Write mode and Erase mode.
iii) Don’t change the serial register data bits in following conditions :
is determined by basis of V
CC
6ch
at 3.5 V (in case of Erase mode only)
)
) On entering Write data
V
CC
HS2
=3.5 V
0
0
0
0
1
1
1
1
CC
=5 V±5 %
HS1
WD
0
0
1
1
0
0
1
1
CC
+1.2V) to FLT/SE pin by using the pull-up resister(Rse=820 )
< 15 MHz
CC
. V
BHV
HS0
0
1
0
1
0
1
0
1
=V
CC
—16—
–4
I
B
Normal operation
Head select,
(R
MR
none
none
0
1
2
3
4
5
+5.5 )
CXA3238TN/CXA3239TN