CXA3170AN Datasheet, PDF (1/18 Pages) Sony Corporation – 6ch. Read/Write Amplifier for Thin Film Head of Hard Disk Drive

CXA3170AN
6ch. Read/Write Amplifier for
Thin Film Head of Hard Disk Drive
For the availability of this product, please contact the sales office.
Description
The CXA3170AN is a Read/Write Amplifier for the
24 pin SSOP (Plastic)
thin film head of hard disk drive and designed to
handle up to 6 channel heads.
Features
• Operate on single +5 V power supply
• Low power consumption
Read : 85 mW
Write : 115 mW + IW ×5
• Designed for two terminal thin-film or MIG heads
• Read amplifier emitter follower output featuring
360 times gain (typ).
• Differential input capacitance for Read : 6 pF (typ)
• Input noise : 0.47 nV / √ Hz (typ)
• Write current range : 5 to 15 mA
• Differential Head voltage swing : 9 Vp-p (typ)
• IW Rise / Fall times : 3.7 ns (typ)
(LH=540 nH, RH=25 Ω, IW=10 mA)
• Differential P-ECL write data input
• Built-in write unsafe detection circuit.
• Built-in Servo write function (3/6 ch).
• Built-in IC protection circuit for short of head and
GND.
• Read data outputs are high impedance in write
mode.
• Unselected head voltage is GND potential.
• Built-in supply voltage monitor circuit prohibits
incorrect write during power on or abnormal
voltage.
• Self switching damping resistance (RD = 360 Ω).
Absolute Maximum Ratings (Ta=25 °C)
• Supply voltage
VCC
6
V
• Write current
IW
20 mAo-p
• Operating temperature Topr –20 to +75 °C
• Storage temperature Tstg –55 to +150 °C
• Allowable power dissipation
PD
800 mW
• WUS/SE pin input current
ISEH
15
mA
Recommended Operating Conditions
• Supply voltage
VCC 5.0 V±10 %
• Write current
IW
5 to 15 mAo-p
Function
Read, Write and Write unsafe detection for HDD,
power supply ON/OFF detection.
Structure
Bipolar silicon monolithic IC
Sony reserves the right to change products and specifications without prior notice. This information does not convey any license by
any implication or otherwise under any patents or other right. Application circuits shown, if any, are typical examples illustrating the
operation of the devices. Sony cannot assume responsibility for any problems arising out of the use of these circuits.
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