LC78626E Datasheet, PDF (2/32 Pages) Sanyo Semicon Device – DSP for Compact Disk Players

LC78626E
Continued from preceding page.
• Command (such as track jump, start focus, disk motor
start/stop, muting on/off, track count, etc.) is are
executed after they are entered from the microprocessor.
(An 8-bit serial input is used.)
• The digital output is equipped internally.
• High speed access is supported through discretionary
track counting.
• Using the 4× oversampling digital filter, D/A converter
signals with improved continuity of output data are
produced.
• A ∆∑-type D/A converter using a 3-order noise shaper is
equipped internally. (An analog low-pass filter is
equipped internally.)
• Internal digital attenuator (8-bit-[ALPHA]; 239 steps.)
• Internal digital deemphasis.
• Uses 0 cross mute.
• Bilingual compatibility.
• General I/O ports: 4. (Three of these are shared,
exclusively, with the subcode output function.)
• Up to ten seconds of skip prevention (when using 4M of
DRAM) through ADPCM compression/decompression
processing. 1M/4M bit DRAM can be selected.
• Memory overflow detection output.
• Free memory output.
Features
• 100-pin QFP
• A single 3.2 V/5 V power supply
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