CXA3239TN

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 specifica...