
—1—
E98128-TE
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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.
Absolute Maximum Ratings
(Ta=25 °C)
Supply voltage
Operating temperature
Storage temperature
Allowable power dissipation (on board)
V
CC
Topr
Tstg
6
V
–20 to +70
–55 to +150
°C
°C
P
D
I
W
760
22
mW
mA
Write current
WUS/SE pin input current
I
SEH
15
mA
Operating Conditions
Supply voltage
V
CC
5±0.5
V
Description
The CXA3188N is a Read/Write Amplifier for the
thin film head of hard disk drive and designed to
handle up to 2 channel heads.
Features
Operate on single +5 V power supply
Low power consumption
Read : 90 mW
Write : 115 mW + I
W
×
5
Idle
: 8 mW
Designed for two terminal thin-film or MIG heads.
Read amplifier emitter follower output featuring
200 times gain(typ).
Differential input capacitance for Read : 6pF (typ)
Input noise : 0.47 nV /
√
Hz (typ)
Write current range : 10 to 20 mA
Differential Head voltage swing : 9 Vp-p (typ)
Differential P-ECL write data input.
Built-in write unsafe detection circuit.
Built-in Servo write function.
Read data outputs are high impedance in write
mode.
Unselected head voltage is high impedance.
Self switching damping resistor 380
.
Built-in supply voltage monitor circuit prohibits
incorrect write during power on or abnormal
voltage.
Function
Read, Write and Write unsafe detection for HDD,
power supply ON/OFF detection.
Structure
Bipolar silicon monolithic IC
2ch. Read/Write Amplifier for Thin Film Head of Hard Disk Drive
For the availability of this product, please contact the sales office.
16 pin SSOP (Plastic)
CXA3188N