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STA015B Datasheet(PDF) 1 Page - STMicroelectronics |
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STA015B Datasheet(HTML) 1 Page - STMicroelectronics |
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1 / 55 page  1/55 STA015 STA015B STA015T March 2004 ■ SINGLE CHIP MPEG2 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 exten- sion, (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 ■ ADPCM CODEC CAPABILITIES: – 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) – Tone control and fast-forward capability ■ EASY PROGRAMMABLE GPSO INTERFACE FOR ENCODED DATA UP TO 5Mbit/s (TQFP44 & LFBGA 64) ■ DIGITAL VOLUME CONTROL ■ DIGITAL BASS & TREBLE CONTROL ■ BYPASS MODE FOR EXTERNAL AUDIO SOURCE ■ SERIAL BITSTREAM INPUT INTERFACE ■ EASY PROGRAMMABLE ADC INPUT INTERFACE ■ ANCILLARY DATA EXTRACTION VIA I 2C INTERFACE. ■ SERIAL PCM OUTPUT INTERFACE (I 2S 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 ■ WIDE RANGE OF EXTERNAL CRYSTALS FREQUENCIES SUPPORTED APPLICATIONS ■ PC SOUND CARDS ■ MULTIMEDIA PLAYERS ■ VOICE RECORDERS DESCRIPTION The STA015 is a fully integrated high flexibility MPEG Layer III Audio Decoder, capable of decod- ing Layer III compressed elementary streams, as specified in MPEG 1 and MPEG 2 ISO standards. The device decodes also elementary streams compressed by using low sampling rates, as spec- ified by MPEG 2.5. STA015 receives the input data through a Serial input Interface. The decoded signal is a stereo, mono, or dual channel digital output that can be sent directly to a D/A converter, by the PCM Output Interface. This interface is software programmable to adapt the STA015 digital output to the most common DACs architectures used on the market. The func- tional STA015 chip partitioning is described in Fig.1a and Fig.1b. ORDERING NUMBER: STA015$ (SO28) STA015T$ (TQFP44) STA015B$ (LFBGA 8x8) SO28 TQFP44 LFBGA64 MPEG 2.5 LAYER III AUDIO DECODER WITH ADPCM CAPABILITY |
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