描述 Description

The CXA3090N is a Read/Write Amplifier for the thin film head of hard disk drive and designed to handle up to 6 channel heads.

特性 Features

? Operate on single +5 V power supply

? Low power consumption

Read : 85 mW

Write : 115 mW + IW ×5

? 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 (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.

? Self switching damping resistance (RD = 350 ?).

Function

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