cxa1829n Sony Electronics, cxa1829n Datasheet - Page 7

• Manufacturer Part Number: cxa1829n
• Description: 8ch. Read/write Amplifier For Thin Film Heads Of Hard Disk Drive
• Manufacturer: Sony Electronics

Unless otherwise specified, V
inductance) = 1 µH, R
Head differential
voltage amplitude
Write-unsafe detection
maximum frequency
Mode switching time
Read to Write
Mode switching time
Read to Simultaneous
Write
Mode switching time
Write to Read
Mode switching time
Safe to Unsafe
Mode switching time
Unsafe to Safe
Mode switching time
Power save to Read
Head switching time
Write current
propagation delay time
Write current rise/fall
time
Item
H
(head DC resistance) = 30
Symbol
T
F
T
T
V
T
T
T
T
T
R
WUS
T
SA1
SA2
RW
WR
SW
RS
PR
PD
/T
H
CC
F
= 5 V, Ta = 25 °C, f
Potential difference between HX and
HY pins when Write current is
switched.
FWUS is the Write data frequency
when WUS pin is high in Write mode.
Time required for Write current to
reach 90% after Read mode is
switched to Write mode.
Time required for Write current to
reach 90% after Read mode is
switched to Simultaneous Write
mode.
Time required for Write current to
reach 10% after Write mode is
switched to Read mode.
Time required for WUS pin to
become high after the Write data is
stopped in Write mode.
Time required for WUS pin to
become low after the Write data is
input in Write mode.
Time required for RD output to reach
90% after Power Save mode is
switched to Read mode.
Time required for RD output to reach
90% when the selected head is
changed in Read mode.
L
Time required for Write current to
reach 90% after the Write data falling
edge.
L
T
current to reach 90% from 10%; T
the time required for it to reach 10%
from 90%.
H
H
R
= 0, R
= 0, R
is the time required for Write
Measurement conditions
H
H
= 0
= 0
WD
—7—
(Write data frequency) = 5 MHz, I
Refer to Measurement Circuit 2 and Timing Chart.
F
is
Min.
4.4
3
Typ.
280
5.2
16
7
5
W
= 15 mA, L
1000
Max.
0.6
0.6
0.6
1.0
1.0
0.6
11
30
10
CXA1829N
H
Unit
Vp-p
kHz
(head
µs
ns