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SM5903CF
NIPPON PRECISION CIRCUITS INC.
compression and non compression type anti-shock memory controller
Overview
The SM5903CF 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, 4M, 4M× 2, 16M). It operates from a 4.5 to 5.5 V supply voltage range.
Features
- 2-channel processing - Serial data input ⋅ 2s complement, 16-bit/MSB first, rear-packed format ⋅ Wide capture function
pre lim ina
(until triple speed available) - 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.