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LC895925 - Signal Processing LSI

Description

Type: I: Input pin, O: Output pin, B: Bidirectional pin, P: Power supply pin, N: No connection pin Pin 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 37 38 39 40 41 Pin Name VSS Reserve0 Reserve1 Reserve2 TEST1 XTALCK0 XTAL0 TEST2 MCK TEST3

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.

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Full PDF Text Transcription (Reference)

The following content is an automatically extracted verbatim text from the original manufacturer datasheet and is provided for reference purposes only.

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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.
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