DESCRIPTION

The STA016 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. Besides MPEG decoding the device can also perform ADPCM encoding/decoding from different audio sources and the encoded stream, for instance, can be stored on an external flash memory.

A useful bypass mode allow using this device also as an audio processor for volume and tone controls.

■ 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

■ ADPCM ENCODING/DECODING CAPABILITY:

- sample frequency from 8 kHz to 32 kHz

- sample size from 8 bits to 32 bits

- encoding algorithm: DVI, ITU-G726 pack (G723-24, G721,G723-40)

■ EMBEDDED ISO9660 LAYER FOR FILESYSTEM 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

■ BASS & TREBLE CONTROL

■ SERIAL BITSTREAM INPUT INTERFACE

■ EASY PROGRAMMABLE ADC INPUT INTERFACE

■ SERIAL PCM OUTPUT INTERFACE (I2S AND OTHER FORMATS)

■ PLL FOR INTERNAL CLOCK AND FOR OUTPUT PCM CLOCK GENERATION

■ CRC CHECK AND SYNCHRONISATION ERROR DETECTION WITH SOFTWARE INDICATORS

■ I2C CONTROL BUS

■ LOW POWER 2.4V CMOS TECHNOLOGY WITH 3.3V TOLERANT AND CAPABLE I/O

■ FAST FORWARD AND PAUSE CAPABILITIES

APPLICATIONS

■ AUDIO CD PLAYERS

■ MULTIMEDIA PLAYERS

■ CD-ROM PLAYERS

■ CAR RADIO PLAYERS