SM9403BM Datasheet (Nippon Precision Circuits Inc)

SM9403BM, DVDRAM Servo-amplifier LSI

Number 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 Name NC NC FER FHOLD FSUB ISET DPDD DPDC DPDB DPDA AG N D MMTI C A PA N C A PA P CAPLFC TSUB THOLD TRE VREF4 VREF2 TROFF TRP C A PA R E A CAPOUT AV C C CAPIN CAPSEL CAPSEEK DV C C SENB S D ATA S

SM9403BM NIPPON PRECISION CIRCUITS INC.

DVDRAM Servo-ampliﬁer LSI OVERVIEW The SM9403BM is a DVDROM and DVDRAM servo preprocessor LSI, designed for double-speed format DVDROM and DVDRAM drives.

The SM9403BM is fabricated using a BiCMOS process, and incorporates an analog signal processing circuit that generates signals needed by the digital servo processor, a DPD signal processing circuit (DVDROM), and a CAPA (Complementary Allocated Pit Address) detection circuit (DVDRAM) all in a single chip

SM9403BM Features

* s s s s s s s s s s s s s PINOUT 36-pin SSOP (Top View) DPD signal processor Tracking error signal output Focus error signal output Tracking error signal sample-and-hold Focus error signal sample-and-hold CAPA detection function Track count pulse generator Off-track detection 2V and 4V reference v