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CXA3238TN

Sony Corporation
Part Number CXA3238TN
Manufacturer Sony Corporation
Description 6/4-channel Read/Write Amplifier for GMR-Ind Head Hard Disk Drive
Published Mar 27, 2005
Detailed Description CXA3238TN/CXA3239TN 6/4-channel Read/Write Amplifier for GMR-Ind Head Hard Disk Drive For the availability of this prod...
Datasheet PDF File CXA3238TN PDF File

CXA3238TN
CXA3238TN

Overview
CXA3238TN/CXA3239TN 6/4-channel Read/Write Amplifier for GMR-Ind Head Hard Disk Drive For the availability of this product, please contact the sales office.
Description The CXA3238TN/CXA3239TN is a Read/Write amplifier for GMR-Ind (Giant Magneto ResistiveInductive) heads used in hard disk drives, and is capable of supporting up to six channels.
Features • +5 V and –3 V power supply.
• Current bias voltage sense type.
• Drives up to six heads (CXA3238TN) • Drives up to four heads (CXA3239TN) • Low power 180 mW at Read • Differential read amplifier gain ; ×140/190 (RMR=50 Ω) • Input noise of 0.
77 nV/ √ Hz (typ.
), RMR=50 Ω, IB=6.
0 mA.
• • • • • Recovery time write to read ; 300 nsec.
(typ.
) Write data is triggered by differential P-ECL signal.
Servo bank write.
(All channels) 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 38 pin TSSOP (Plastic) Absolute Maximum Ratings (Ta=25 °C) • Supply voltage VCC –0.
3 to +6 V • Supply voltage VEE –4.
5 to +0.
3 V • Digital input voltage Vdi –0.
3 to VCC+0.
3 V • Operating temperature Topr –20 to +70 °C • Storage temperature Tstg –55 to +150 °C • Allowable power dissipation TSSOP38 PD 1000 mW Operating Conditions • Supply voltage • MR bias voltage • Bias current • Write current VCC VEE VMR IB IW +4.
4 to +5.
5 V –4.
0 to –2.
6 V –300 to +300 mV 3 to 8 mA 15 to 45 mA Sony reserves the right to change products and specifications without prior notice.
This information does not convey any license by any implication or otherwise under any patents or other right.
Application circuits shown, if any, are typical examples illustrating the operation of the devices.
Sony cannot assume responsibility for any problems arising out of the use of these circuits.
—1— E98346C8Y CXA3238TN/CXA3239TN Block Diagram and Pin Configuration CXA3238TN RS SCLK SDATA WDX WDY VCC GND RDY RDX 1 Serial Interface 2 3 4 WD BUF Bias curren...


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