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SM5904BF - compression and non compression type shock-proof memory controller

Datasheet Summary

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 Pin name VDD2 UC1 UC2 UC3 UC4 VSS2 DIT NTEST1 CLK VSS1 YSRDATA YLRCK YSCK ZSCK ZLRCK ZSRDATA YFLAG YFCLK YBLKCK NRESET ZSENSE VDD1 YDMUTE YMLD YMDATA YMCLK NTEST2 NCA

Features

  • - 2-channel processing - Serial data input ⋅ 2s complement, 16-bit/MSB first, right-justified format - Wide capture function (up to 3 × speed input rate) - System clock input ⋅ 384fs (16.9344 MHz) - Shock-proof 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 ⋅ External DRAM configurations usable 2 × 4M DRAM (1M × 4 b.

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Datasheet Details

Part number SM5904BF
Manufacturer Nippon Precision Circuits Inc
File Size 266.00 KB
Description compression and non compression type shock-proof memory controller
Datasheet download datasheet SM5904BF Datasheet
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Full PDF Text Transcription

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SM5904BF NIPPON PRECISION CIRCUITS INC. compression and non compression type shock-proof memory controller Overview The SM5904BF is a compression and non compression type shock-proof memory controller LSI for compact disc players. The compression level can be set in 4 levels, and external 4M DRAM can be connected to expand the memory to 4M bits. Digital attenuator, soft mute and related functions are also incorporated. It operates from a 2.4 to 3.3 V supply voltage range. Features - 2-channel processing - Serial data input ⋅ 2s complement, 16-bit/MSB first, right-justified format - Wide capture function (up to 3 × speed input rate) - System clock input ⋅ 384fs (16.
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