MC34250

Order this document from Analog Marketing Product Preview 5.0 V, 200 M-Bit/Sec PR-IV Hard Disk Drive Read Channel The Motorola MC34250 is a fully integrated partial response maximum likelihood disk drive read/write channel for use in zoned recording applications. This device integrates the AGC, active filter, 7 tap equalizer, Viterbi detector, frequency synthesizer, servo demodulator, 8/9 rate (0,4/4) Encoder/Decoder with write precompensation and power management in a single 64 pin 10 mm x 10 mm TQFP package. MC34250 HARD DISK DRIVE READ CHANNEL SEMICONDUCTOR TECHNICAL DATA FEATURES: 50 to 200 MBPS Programmable Data Rate 800 mW at 200 MBPS and 5.0 V Channel Monitor Output Programmable AGC Charge Pump Currents with Different Values for Data and Servo Envelope Modes and Gain Gradient Mode Programmable AGC Peak Detector Droop Currents with Different Values for Data and Servo Envelope Modes Separate AGC Charge Pump Outputs for Data and Servo Modes Programmable Dual Threshold Qualifier or Hysteresis Comparator Type Pulse Detector for Servo Data Detection. ERD and Polarity Outputs for Servo Timing and Raw Encoded Data Integrated 7 pole 0.05° Equiripple Linear Phase Filter with Programmable Bandwidth from 5.0 MHz to 80 MHz and Different Values for Both Data and Servo Modes Programmable Symmetrical Boost from 0 to 10 dB and Different Values for Data and Servo Modes Programmable Asymmetrical Boost of Up to ±40% of Nominal Filter...