LC78602NE

Ordering number : EN6021 CMOS IC LC78602NE Compact Disc Player DSP with Built-in Microcontroller Overview The LC78602NE CMOS IC implements compact disc player signal processing, servo control, LED display, key input acquisition, and remote controller processing without requiring control by a separate microcontroller. The basic functions provided include demodulation of the EFM signal from the optical pickup, deinterleaving, error detection and correction, 8× oversampling digital filters, D/A converter (with built-in analog low-pass filter), LED driver, remote controller processing, key acquisition, and control processing. Thus this IC can provide excellent cost/performance characteristics when implementing a low-end CD player. Functions Implements CD play/pause, disc stop, track selection, fast forward, reverse, repeat mode playback of 1 track or the whole disc, programmed play (setup, play, and clear) of up to 16 tracks, and random repeat play under the control of key input or remote controller input. Slices an input high-frequency signal at an accurate level, converts the EFM signal, and generates a clock with an average frequency of 4.3218 MHz using a PLL circuit that performs a phase comparison with an internal VCO. Accurately generates not only the reference clock but also all necessary internal timings using an external 16.9344MHz crystal. Controls the disc motor speed using a frame difference signal created based on the reproduced ...