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.