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SM5859AF - compression and non compression type antishock memory controller

Description

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 42 43 44 Pine name VDD UC1 UC2 UC3 UC4 UC5 NTEST1 NTEST2 CLK VSS YSRDATA YLRCK YSCK ZSCK ZLRCK ZSRDATA YFLAG YFCLK YBLKCK NRESET ZSENSE UC6 YDMUTE YMLD YMDATA YMCLK NOE (NCAS2

Features

  • - 2-channel processing - Serial data input.
  • 2s complement, 16-bit/MSB first, rear-packed format - System clock input.
  • 384fs (16.9344 MHz) - Anti-shock memory controller - ADPCM compression method.
  • 4-level compression mode selectable 4-bit compression mode 2.78 s/Mbit 5-bit compression mode 2.22 s/Mbit 6-bit compression mode 1.85 s/Mbit Full-bit non compression mode 0.74 s/Mbit.
  • 4 external DRAM configurations selectable 2×4M DRAM (1M×4 bits) 1×4M DRAM (1M×4 bits) 2.

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Datasheet Details

Part number SM5859AF
Manufacturer Nippon Precision Circuits Inc
File Size 173.18 KB
Description compression and non compression type antishock memory controller
Datasheet download datasheet SM5859AF Datasheet
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Full PDF Text Transcription

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SM5859AF compression and non compression type antishock memory controller NIPPON PRECISION CIRCUITS INC. Overview The SM5859 is a compression and non compression type anti-shock memory controller LSI for compact disc players. The compression level can be set in 4 levels, and external memory can be selected from 4 options (1M, 1M×2, 4M, 4M×2). Digital attenuator, soft mute and related functions are also incorporated. It operates from a 2.7 to 5.5 V wide supply voltage range. Features - 2-channel processing - Serial data input •2s complement, 16-bit/MSB first, rear-packed format - System clock input •384fs (16.9344 MHz) - Anti-shock memory controller - ADPCM compression method •4-level compression mode selectable 4-bit compression mode 2.78 s/Mbit 5-bit compression mode 2.
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