STA016A

MPEG 2.5第三层音频解码器配套光盘能力的 MPEG 2.5 LAYER III AUDIO DECODER SUPPORTING CD-ROM CAPABILITY

DESCRIPTION

The is a single chip MPEG 1, 2 and 2.5 Layer III audio decoder with embedded CDROM decoding capability. It can be easily connected to most existing CDDSP devices via a software configurable serial link. A tipical application block diagram is show in Figure 1. The audio sources, for instance could be an external flash memory.

FEATURES

■ SINGLE CHIP MPEG LAYER 3 DECODER SUPPORTING:

– All features specified for Layer III in ISO/IEC 11172-3 MPEG 1 Audio

– All features specified for Layer III in ISO/IEC 13818-3.2 MPEG 2 Audio

– Lower sampling frequencies syntax extension, not specified by ISO called MPEG 2.5

■ DECODES LAYER III STEREO CHANNELS, DUAL CHANNEL, SINGLE CHANNEL MONO

■ SUPPORTING ALL THE MPEG 1 & 2 SAMPLING FREQUENCIES AND THE EXTENSION TO MPEG 2.5:48, 44.1,32, 24,22.05, 16, 12,11. 025, 8 KHz

■ ACCEPTS MPEG 2.5 LAYER III ELEMENTARY COMPRESSED BITSTREAM WITH DATA RATE FROM 8 Kbit/s UP TO 320

Kbit/s

■ BYPASS MODE FOR EXTERNAL AUXILIARY AUDIO SOURCE

■ EMBEDDED ISO9660 LAYER FOR FILE SYSTEM DECODING JOLIET

■ EMBEDDED CD-ROM DECODER BLOCKS INCLUDING ECC/EDC CAPABILITY

■ FLEXIBLE I2S INPUT INTERFACE FOR EASY CONNECTION WITH MOST CD-SERVO DEVICES

■ EMBEDDED BROWSING COMMAND INTERPRETER FOR EASY FILE-SYSTEM BROWSING

■ CUE-SHEET CAPABILITY UP TO 100 ENTRIES

■ BROWSER COMMAND INTERPRETER BCI

– Parent Dir

– Enter Dir

– Previous Entry

– Next Entry

– Get Record Infos

■ EASY PROGRAMMABLE GPSO INTERFACE MONO/STEREO FOR ENCODED DATA UP TO 5Mbit/s

■ DIGITAL VOLUME

APPLICATIONS

■ AUDIO CD PLAYERS

■ MULTIMEDIA PLAYERS

■ CD-ROM PLAYERS

■ CAR RADIO PLAYERS