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E96713-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.

Description

The CXA3092N is a Read/Write Amplifier for the

thin film head of hard disk drive and designed to

handle up to 4 channel heads.

Features

• Operate on single +5 V power supply

• Low power consumption

Read : 85 mW

×5

Idle : 8 mW

• Designed for two terminal thin-film or MIG heads

• Read amplifier emitter follower output featuring

325 times gain (typ).

• Differential input capacitance for Read : 6pF (typ)

• Input noise : 0.47 nV /

√ Hz (typ)

• Write current range : 5 to 15 mA

• Differential Head voltage swing : 6.8 Vp-p (typ)

• Differential P-ECL write data input

• Built-in write unsafe detection circuit.

• Built-in Servo write function (2/4 ch).

• Built-in IC protection circuit for short of head to

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.

Ω).

Function

Read, Write and Write unsafe detection for HDD,

power supply ON/OFF detection.

Structure

Bipolar silicon monolithic IC

4ch. Read/Write Amplifier for Thin Film Head of Hard Disk Drive

20 pin SSOP (Plastic)

CXA3092N

Absolute Maximum Ratings (Ta=25 °C)

• Supply voltage

6V

• Write current

20

mAo-p

• Operating temperature

Topr

–20 to +75

°C

• Storage temperature

Tstg

–55 to +150

°C

• Allowable power dissipation

800

mW

• WUS/SE pin input current

15

mA

Recommended Operating Conditions

• Supply voltage

5.0 V±10

%

• Write current

5 to 15 mAo-p

For the availability of this product, please contact the sales office.