Ordering number : EN*5826
CMOS LSI
LC78632RE
Compact Disk Player DSP
Preliminary
Overview
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.
Package Dimensions
unit: mm
3174-QFP80E
[LC78632RE]
Features
鈥?VCEC support
鈥?Built-in PLL circuit for EFM detection (supports 4脳
playback)
鈥?18KB RAM on chip
鈥?Error detection and correction (corrects two errors in C1
and four errors in C2)
鈥?Frame jitter margin: 卤8 frames
鈥?Frame synchronization signal detection, protection, and
insertion
鈥?Dual interpolation adopted in the interpolation circuit.
鈥?EFM data demodulation
鈥?Subcode demodulation
鈥?Zero-cross muting adopted
鈥?Servo command interface
鈥?2fs digital filter
鈥?Digital de-emphasis
鈥?Built-in independent left- and right-channel digital
attenuators (239 attenuation steps)
鈥?Supports the bilingual function
鈥?Left/right swap function
鈥?Built-in 1-bit D/A converter (third-order
鈭嗏垜
noise
shaper, PWM output)
鈥?Built-in digital output circuit
鈥?CLV servo
鈥?Arbitrary track jumping (of up to 255 tracks)
鈥?Variable sled voltage (four levels)
鈥?Six extended I/O ports and 2 extended output ports
鈥?Built-in oscillator circuit using an external 16.9344 MHz
or 33.8688 MHz (for 4脳 playback) element
鈥?Supply voltage: 4.5 to 5.5 V
SANYO: QFP80E
SANYO Electric Co.,Ltd. Semiconductor Bussiness Headquarters
TOKYO OFFICE Tokyo Bldg., 1-10, 1 Chome, Ueno, Taito-ku, TOKYO, 110 JAPAN
D3097HA (OT) No. 5826-1/9
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