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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.), RM.
• +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 Applications Hard disk drives with GMR-Ind heads Structure Bipolar silicon monolithic IC 24 pin SSOP (Plastic)
Absolute Maximum Ratings (Ta = 25°C)
–0.3 to +5.8 V
• Supply voltage VCC
• Supply v.
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