Overview

The LC78011E is a CMOS IC that integrates a digital RGB encoder and a synchronizing signal generation circuit on a single chip. A video CD or CD-G system can be formed using the LC78011E together with an MPEG video decoder or a CD-G decoder, respectively.

Features

• System structure

— Each system (Video CD or CD-G system) formed

with an additional chip: MPEG decoder or CD-G

decoder chip.

• Video outputs

— 8-bit D/A converter outputs: 2 channels

— The LC78011E supports the following two video

signal output formats:

Luminance signal (Y) and chroma signal (C) outputs

Composite video signal (C • VIDEO) output (Only

one D/A converter channel operates in this mode.)

• System clock

— External 4fsc clock

NTSC mode: 14.31818 MHz

PAL mode: 17.734475 MHz

PAL-M mode: 14.30244596 MHz

• External subcarrier input

— An external fsc clock is input and used for subcarrier

synchronization timing.

• Video data input

— The LC78011E supports the following four input

formats:

R, G, and B: 8 bits each

Y, U, and V: 8 bits each

Y and UV: 8 bits each (The UV input is a

multiplexed input)

R, G, and B: 4 bits each (In CD-G input support

mode)

• OSD input support

— R, G, and B + BLK 4-bit inputs (color support)

(BLK is an OSD display switching timing signal.)

• External synchronizing signal input

— Horizontal synchronizing signal, composite

synchronizing signal, and composite blanking signal

inputs: HSYNC, CSYNC, and BLANK.

• Video signal formats

— The LC78011E supports the NTSC, PAL, and PALM formats.