LC78605E

www.DataSheet4U.com Ordering number : ENN7735 SANYO Semiconductors DATA SHEET CMOS IC LC78605E Overview Compact Disc Player DSP with Built-in Microcontroller The LC78605E CMOS IC implements the signal processing, servo control, LCD display, button state acquisition, and remote controller handling required by compact disc players without requiring a separate microcontroller. It provides the following basic functions: demodulation of the EFM signal from the optical pickup, deinterleaving, error detection and correction, 8× oversampling audio filters, D/A converter (with built-in analog low-pass filter), LCD display drivers, key acquisition (A/D) and control processing, and automatic discrimination and playback of CD-RW discs. Thus the LC78604E is ideal for implementing low-end CD players that support playback of CD-RW discs. The LC78604E also provides a radio tuner frequency display function, and allows digital display of the selected frequency in manual tuning CD radio/cassette players. Functions Implements the CD play/pause, stop, track selection, fast forward/fast rewind, repeat 1/repeat all, program setup/play/clear for up to 30 tracks, and shuffle play functions controlled from CD player buttons. The signal-processing block applies slicing at the correct level to the input HF signal, and converts that signal to an EFM signal. At the same time it generates a PLL clock signal with an average frequency of 4.3218MHz by comparing the phase w...