Sanyo Electric LC78632RE
The LC78632RE is a compact disc D/A signal-processing LSI for Video-CD players that provides a variable clock error correction (VCEC) mode. The LC78632RE demodulates the EFM signal from the optical pickup and performs de-interleaving, error detection, error correction, digital filtering, and other processing. The LC78632RE includes an on-chip 1-bit D/A converter, and executes commands sent from a control microprocessor.FEATURES
● VCEC support● Built-in PLL circuit for EFM detection (supports 4× playback)
● 18KB RAM on chip
● Error detection and correction (corrects two errors in C1 and four errors in C2)
● Frame jitter margin: ±8 frames
● Frame synchronization signal detection, protection, and insertion
● Dual interpolation adopted in the interpolation circuit.
● EFM data demodulation
● Subcode demodulation
● Zero-cross muting adopted
● Servo command interface
● 2fs digital filter
● Digital de-emphasis
● Built-in independent left- and right-channel digital attenuators (239 attenuation steps)
● Supports the bilingual function
● Left/right swap function
● Built-in 1-bit D/A converter (third-order ∆∑ noise shaper, PWM output)
● Built-in digital output circuit
● CLV servo
● Arbitrary track jumping (of up to 255 tracks)
● Variable sled voltage (four levels)
● Six extended I/O ports and 2 extended output ports
● Built-in oscillator circuit using an external 16.9344 MHz or 33.8688 MHz (for 4× playback) element
● Supply voltage: 4.5 to 5.5 V SANYO: QFP80E SANYO Electric Co.,Ltd.