器件名称: SZA1000
功能描述: QIC digital equalizer
文件大小: 164.9KB 共32页
简 介:INTEGRATED CIRCUITS
DATA SHEET
SZA1000 QIC digital equalizer
Product specication File under Integrated Circuits, IC01 1998 Feb 16
Philips Semiconductors
Product specication
QIC digital equalizer
FEATURES 3-wire serial interface for programming and status reading Suitable for MFM (Modified Frequency Modulation), RLL 1,7 (Run Length Limited) and similar codes Transfer rates with MFM code from 250 kbits/s to 4 Mbits/s Transfer rates with RLL(1,7) code from 500 kbits/s to 12 Mbits/s Programmable FIR (Finite Impulse-Response) filter makes it possible to equalize complex and asymmetric channel impulse responses Programmable fixed and tracking qualification thresholds provide reliable data recovery in read mode, and reliable bad sector detection in verify mode Read pulse output for floppy tape drives Digital data synchronizer based on digital PLL with maximum likelihood detector for a better error rate than can be achieved with conventional analog circuits Data verification can be used (with the maximum likelihood detector switched off) to find bad sectors on drives with conventional read electronics Servo stripe detection for TR4, QIC3080 and similar formats Gap detector 2 programmable current sources QUICK REFERENCE DATA SYMBOL VDDD1; VDDD2 VDDA1; VDDA2 IDDD1; IDDD2 IDDA1; IDDA2 fclk(CLKIN) fclk(WEQCLK) Tamb PARAMETER digital supply voltage analog supply voltage digital supply current analog supply current read circuit clock frequency WEQ circuit clock frequency ……
