LC78684E

www.DataSheet4U.com Ordering number : ENN7350 CMOS IC LC78684E MP3 Decoder for Compact Disc Players Overview The LC78684E integrates, on a single chip, CD-ROM signal-processing functions, MP3 signal-processing functions, and CD-DA shockproof signal-processing functions. The LC78684E achieves significant power savings by implementing signal-processing functions using hardwired structures. A CD player that supports playback of MPEG audio (MP3) recorded on CD media as well as CD-DA shockproof playback can be implemented by combining this IC with a CD DSP, DRAM, and audio D/A converter, and other circuits. x CD-ROM Decoding Functions  Supports CD-ROM modes 1 and 2 (forms 1 and 2)  Faithfully reproduces data stored on CD-ROM discs using CD-ROM error correction functions.  Header and sector management  Supports playback speeds up to 4×.  In addition to data buffering also supports C2 error flag buffering.  Provides external serial output of decoded CD-ROM data. x CD-DA Playback Functions (Shockproof support)  Shockproof operation for about 180 seconds (compressed mode) when 64M DRAM is used.  Shockproof function supports compressed, uncompressed, and data through modes.  VCEC (variable speed) supports up to 4×-speed playback. x Audio Signal Processing  Serial audio signal output using LRCK, BCK, and DATA signals. (I²S format, either 16-bit or 20-bit precision PCM output, data-slot supports 16-bit, 24-bit, and 32-bit modes)  Digital bass boost function (4 modes), atte...