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 + 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.

Function

Read, Write and Write unsafe detection for HDD, power supply ON/OFF detection.