Order this document from Analog Marketing ! 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. 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 Group Delay in Both Data and Servo Modes 7 Tap Continuous Time Transversal Equalizer with 8 Bit Programmable Tap Weights and Integrated Decision Directed Sign–Sign Least Mean Squared Adaptation Internal Offset Cancellation Loops Fast Acquisition Data Phase Locked Loop with Zero Phase Restart 64 1 FTA SUFFIX PLASTIC PACKAGE CASE 840F (Thin QFP) ORDERING INFORMATION Device Operating Temperature Range Package TA = 0° to +70°C TQFP–64 MC34250FTA Programmable Data Phase Locked Loop Charge Pump Current Integrated Soft Decision Viterbi Detectors with Programmable Merge References Integrated 8/9 Rate (0,4/4) Encoder and Decoder with Code Scrambler and Descrambler Programmable 2/4/8 Bit NRZ Data Interface Programmable Write Precompensation Delays Locked to the Frequency Synthesizer Differential PECL Write Data Outputs External Write Data Path for DC Erase or Other Non–Encoded Data Integrated Write Current DAC Programmable Power Management Bi–Directional Serial Microprocessor Interface Various Test Modes Controlled Via the Serial Microprocessor Interface This document contains information on a product under development. Motorola reserves the right to change or discontinue thisIC product without notice. MOTOROLA ANALOG DEVICE DATA Motorola, Inc. 1996 Issue 0 1 2 FREF GND(7) Frequency Synthesizer Power Manager Zone Clk Mode WCDAC Data Q Pump FWR Peak Detector Thresholds Gain Gradient Coefficients 7–Tap Equalizer DAC Coefficients Offset Cancel Time Gradient Estimator Estimator Auto–Adapt Samplers Q Pump ÁÁÁ ÁÁÁ ÁÁÁ ÁÁÁ SLEEPB CFILT Q Pump BST BRSTA/DTP1 CREG RBIAS VCC(6) SRVOGT SERD CSRVO Mux SPOL FC BRSTB/DTP2 CDATA SRVRSTB HOLDB SRVSMPLB 7–Pole Filter SRVREF VINM VGA SRVOUT Clamp BRSTD/DTP4 VINP CLAMPB Clk DPLLFM VCO DPLLFP Servo Pulse Detector BRSTC/DTP3 Servo Demodulator MCU Interface Write Precompensation 8/9 (0,4/4) ENDEC Synchronization Byte Detect Viterbi Detector Path Memory Viterbi Margin Thresholds SCLK SDATA SLATCH WDATAM WDATAP READGT WRITEGT WRITECLK NRZCLK NRZ (7:0) SYNCDET ATP2M ATP2P ATP1M ATP1P/CM MC34250 Simplified Block Diagram IWRITE WCSENSE WCINHB SYNTHFM SYNTHFP This device contains 80,000 active transistors. MOTOROLA ANALOG IC DEVICE DATA MC34250 OUTLINE DIMENSIONS FTA SUFFIX PLASTIC PACKAGE CASE 840F–01 (Thin QFP) ISSUE O L -Z64 49 1 -UDETAIL AA S T–U S AC Z S S AB Z -T-, -U-, -Z- M P AE 0.20 (0.008) -T- V 0.20 (0.008) M 0.050 (0.002) B Z L T–U 48 G AE DETAIL AA 33 16 32 S 17 S Z S BASE METAL F M C E ÇÇÇ ÉÉÉ ÉÉÉ ÇÇÇ ÉÉÉ ÇÇÇ ÉÉÉ ÇÇÇ N S S AC T–U Z D J -AB- 0.10 Y H M M S AC T–U S 0.20 (0.008) 0.20 (0.008) Z A 0.20 (0.008) M AB T–U 0.050 (0.002) T–U SECTION AE-AE -AC-(0.004) DETAIL AD NOTES: Q R K W X DETAIL AD MOTOROLA ANALOG IC DEVICE DATA 1 DIMENSIONING AND TOLERANCING PER ANSI Y14.5M, 1982. 2 CONTROLLING DIMENSION: MILLIMETER. 3 DATUM PLANE -AB- IS LOCATED AT BOTTOM OF LEAD AND IS COINCIDENT WITH THE LEAD WHERE THE LEAD EXITS THE PLASTIC BODY AT THE BOTTOM OF THE PARTING LINE. 4 DATUMS -T-, -U- AND -Z- TO BE DETERMINED AT DATUM PLANE -AC-. 5 DIMENSIONS S AND V TO BE DETERMINED AT SEATING PLANE -AC-. 6 DIMENSIONS A AND B DO NOT INCLUDE MOLD PROTRUSION. ALLOWABLE PROTRUSION IS 0.25 (0.010 ) PER SIDE. DIMENSIONS A AND B DO INCLUDE MOLD MISMATCH AND ARE DETERMINED AT DATUM PLANE -AB-. 7 DIMENSION D DOES NOT INCLUDE DAMBAR PROTRUSION. DAMBAR PROTRUSION SHALL NOT CAUSE THE D DIMENSION TO EXCEED 0.350 (0.014). MILLIMETERS DIM MIN MAX 9.950 10.050 A B 9.950 10.050 C 1.400 1.600 D 0.170 0.270 E 1.350 1.450 F 0.170 0.230 G 0.500 BSC H 0.050 0.150 J 0.090 0.200 K 0.450 0.550 L 7.500 BSC M 12° REF N 0.090 0.160 0.250 BSC P Q 1° 5° R 0.100 0.200 S 11.900 12.100 V 11.900 12.100 0.200 REF W 1.000 REF X 12° REF Y INCHES MIN MAX 0.392 0.396 0.392 0.396 0.055 0.063 0.007 0.011 0.053 0.057 0.007 0.009 0.020 BSC 0.002 0.006 0.004 0.008 0.018 0.022 0.295 BSC 12° REF 0.004 0.006 0.010 BSC 5° 1° 0.004 0.008 0.469 0.476 0.469 0.476 0.008 REF 0.039 REF 12° REF 3 MC34250 Motorola reserves the right to make changes without further notice to any products herein. Motorola makes no warranty, representation or guarantee regarding the suitability of its products for any particular purpose, nor does Motorola assume any liability arising out of the application or use of any product or circuit, and specifically disclaims any and all liability, including without limitation consequential or incidental damages. “Typical” parameters which may be provided in Motorola data sheets and/or specifications can and do vary in different applications and actual performance may vary over time. All operating parameters, including “Typicals” must be validated for each customer application by customer’s technical experts. Motorola does not convey any license under its patent rights nor the rights of others. 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How to reach us: USA / EUROPE / Locations Not Listed: Motorola Literature Distribution; P.O. Box 20912; Phoenix, Arizona 85036. 1–800–441–2447 or 602–303–5454 JAPAN: Nippon Motorola Ltd.; Tatsumi–SPD–JLDC, 6F Seibu–Butsuryu–Center, 3–14–2 Tatsumi Koto–Ku, Tokyo 135, Japan. 03–81–3521–8315 MFAX: [email protected] – TOUCHTONE 602–244–6609 INTERNET: http://Design–NET.com ASIA/PACIFIC: Motorola Semiconductors H.K. Ltd.; 8B Tai Ping Industrial Park, 51 Ting Kok Road, Tai Po, N.T., Hong Kong. 852–26629298 4 ◊ MOTOROLA ANALOG IC DEVICE DATA *MC34250/D* MC34250/D