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CXA3188N

2ch. Read/Write Amplifier for Thin Film Head of Hard Disk Drive

Sony Semiconductor 

CXA3188N

2ch. Read/Write Amplifier for Thin Film Head of Hard Disk Drive

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

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.

16 pin SSOP (Plastic)

Features

• Operate on single +5 V power supply

• Low power consumption

Read : 90 mW

Write : 115 mW + IW × 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 Ω.

• Built-in supply voltage monitor circuit prohibits

incorrect write during power on or abnormal

voltage.

Absolute Maximum Ratings (Ta=25 °C)

• Supply voltage

VCC

6

V

• Operating temperature Topr –20 to +70 °C

• Storage temperature Tstg –55 to +150 °C

• Allowable power dissipation (on board)

PD

760 mW

• Write current

IW

22

mA

• WUS/SE pin input current

ISEH

15

mA

Operating Conditions

Supply voltage

VCC

5±0.5

V

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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E98128-TE

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