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LC895925

Sanyo
Part Number LC895925
Manufacturer Sanyo
Description Signal Processing LSI
Published Apr 25, 2005
Detailed Description Ordering number : EN*5784 CMOS LSI LC895925 Signal Processing LSI for CD-R Drives Preliminaly Overview The LC895925 pr...
Datasheet PDF File LC895925 PDF File

LC895925
LC895925

Overview
Ordering number : EN*5784 CMOS LSI LC895925 Signal Processing LSI for CD-R Drives Preliminaly Overview The LC895925 provides the following signal processing functions for CD-R drives: CD-ROM decoding/encoding (complete with ECC processing for the former), subcode decoding/encoding, CD encoding, ATIP decoding, CLV servo, and SCSI interface registers.
• Buffer RAM sizes between 1 and 32 megabits (using 16bit DRAMs) • User control over sizes of CD main channel, C2 flag, and subcode areas in buffer RAM • Built-in batch transfer function for transferring entire CD main channel, C2 flag, or subcode area in a single operation • Built-in multiblock transfer function for transferring multiple blocks in a single operation Notes: 1.
Using a SCSI master clock of 20 MHz with speeds up to 8×.
2.
Using a SCSI master clock of 17.
2872 MHz with speeds up to 4×.
Features • CD-ROM decoding/encoding complete with error detection and error correction • Subcode decoding/encoding complete with error correction • ATIP decoding and CRC checking for both encoding and decoding • CLV servo control using ATIP data during encoding • CIRC code insertion and EFM modulation during encoding • Support for PCA random EFM output during encoding • Support for CD-ReWritable (CD-RW) Write Strategy signal output • Access to buffer RAM from microcontroller via LC895925 • Built-in SCSI interface • Speeds of 12× for decoding and 4× for encoding — Frequencies Decoding: 17.
2872 MHz Encoding: 17.
2872 MHz without Write Strategy support 69.
1488 MHz with Write Strategy support • Transfers speeds of 10 megabytes/s (synchronous) and 5 megabytes/s (asynchronous) with 16 80-ns DRAMs *1 Package Dimensions unit: mm 3153A-QFP160E [LC895925] SANYO: QIP160E SANYO Electric Co.
,Ltd.
Semiconductor Bussiness Headquarters TOKYO OFFICE Tokyo Bldg.
, 1-10, 1 Chome, Ueno, Taito-ku, TOKYO, 110-0005 JAPAN D1997RM (OT) No.
5784-1/7 LC895925 Specifications Maximum Ratings at Ta = 25°C, VSS = 0 V Parameter Maximum power supply vol...


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