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CXA3541N - 2-channel Read/Write Amplifier for GMR-Ind Head Hard Disk Drive

General Description

The CXA3541N is a read/write amplifier for GMR-Ind (Giant Magneto Resistive-Inductive) heads used in hard disk drives, and is capable of supporting up to two channels.

Key Features

  • +5V and.
  • 3V power supply.
  • Current bias voltage sense type.
  • Low power 180mW at read.
  • Differential read amplifier gain; ×100/135 (RMR = 50Ω).
  • Input noise of 0.77nV/√ Hz (typ. ), RMR = 50Ω, IB = 5.9mA.
  • Recovery time write to read; 300ns (typ. ).
  • Write data is triggered by differential P-ECL signal.
  • Servo bank write.
  • Write unsafe detection circuit.
  • Serial port Head selection MR bias Write current Applica.

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CXA3541N 2-channel Read/Write Amplifier for GMR-Ind Head Hard Disk Drive Description The CXA3541N is a read/write amplifier for GMR-Ind (Giant Magneto Resistive-Inductive) heads used in hard disk drives, and is capable of supporting up to two channels. Features • +5V and –3V power supply • Current bias voltage sense type • Low power 180mW at read • Differential read amplifier gain; ×100/135 (RMR = 50Ω) • Input noise of 0.77nV/√ Hz (typ.), RMR = 50Ω, IB = 5.9mA • Recovery time write to read; 300ns (typ.