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E97640

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operation of the devices. Sony cannot assume responsibility for any problems arising out of the use of these circuits.

6ch. Read/Write Amplifier for

Thin Film Head of Hard Disk Drive

24 pin SSOP (Plastic)

CXA3170AN

Description

The CXA3170AN is a Read/Write Amplifier for the

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

×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)

• 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.

Ω).

Function

Read, Write and Write unsafe detection for HDD,

power supply ON/OFF detection.

Structure

Bipolar silicon monolithic IC

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.