Overview

The LC82220 is a single-chip JPEG decoder designed for wide range of digital video playback applications including amusement systems, video games and PC JPEG playback cards. The LC82220 is capable of decoding JPEG bitstreams of SIF resolution with a picture rate of 30 frames/sec. The digital video output can be formatted for NTSC, PAL, SECAM, or any other optional video standard. The complete decoding function is realised with the LC82220, a standard 8-bit or 16-bit microcontroller and a bank of DRAM. A typical memory configuration is a single 128 k × 16 or 256 k × 16 DRAM. The LC82220 also supports efficient video display functions such as scroll and overlay.

Functions

• Support for JPEG format

• Real-time decoding of motion-JPEG with rate of 30 frames/sec

• Lowest solution cost for amusement, game, PC systems

• Support for YUV 4:1:1 color format

• YUV or RGB digital video outputs compatible with optional video format

• Programmable picture and display window format

• Support for trick display: scrolling, overlaying

• Standard 8/16-bit microcontroller interface with DMA support for compressed data input

• Support SOI and EOI markers

• Direct connect to video DAC

• Direct connect to 2 M or 4 M DRAM as bit and frame buffers

• Two Q-tables included

• High-speed processing by fixed Huffman tables