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Numéro de référence | STA015B | ||
Description | (STA015x) MPEG 2.5 LAYER III AUDIO DECODER WITH ADPCM CAPABILITY | ||
Fabricant | ST Microelectronics | ||
Logo | |||
1 Page
STA015
STA015B STA015T
MPEG 2.5 LAYER III AUDIO DECODER
WITH ADPCM CAPABILITY
■ 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)
m– Lower sampling frequencies syntax exten-
osion, (not specified by ISO) called MPEG 2.5
.c■ DECODES LAYER III STEREO CHANNELS,
DUAL CHANNEL, SINGLE CHANNEL (MONO)
■ SUPPORTING ALL THE MPEG 1 & 2
USAMPLING FREQUENCIES AND THE
EXTENSION TO MPEG 2.5:
t448, 44.1, 32, 24, 22.05, 16, 12, 11. 025, 8 KHz
■ ACCEPTS MPEG 2.5 LAYER III
eELEMENTARY COMPRESSED BITSTREAM
WITH DATA RATE FROM 8 Kbit/s UP TO 320
eKbit/s
h■ ADPCM CODEC CAPABILITIES:
– sample frequency from 8 kHz to 32 kHz
S– sample size from 8 bits to 32 bits
– encoding algorithm: DVI,
taITU-G726 pack (G723-24, G721,G723-40)
– Tone control and fast-forward capability
a■ EASY PROGRAMMABLE GPSO INTERFACE
FOR ENCODED DATA UP TO 5Mbit/s
.D(TQFP44 & LFBGA 64)
■ DIGITAL VOLUME CONTROL
■ DIGITAL BASS & TREBLE CONTROL
w■ BYPASS MODE FOR EXTERNAL AUDIO
SOURCE
w■ SERIAL BITSTREAM INPUT INTERFACE
w■ EASY PROGRAMMABLE ADC INPUT
SO28
TQFP44
LFBGA64
ORDERING NUMBER: STA015$ (SO28)
STA015T$ (TQFP44)
STA015B$ (LFBGA 8x8)
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-
INTERFACE
■ ANCILLARY DATA EXTRACTION VIA I2C
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
March 2004
ified by MPEG 2.5. STA015 receives the input
mdata through a Serial input Interface. The decoded
osignal is a stereo, mono, or dual channel digital
.coutput that can be sent directly to a D/A converter,
Uby the PCM Output Interface.
t4This interface is software programmable to adapt
ethe STA015 digital output to the most common
eDACs architectures used on the market. The func-
htional STA015 chip partitioning is described in
SFig.1a and Fig.1b.
www.Data 1/55
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Pages | Pages 30 | ||
Télécharger | [ STA015B ] |
No | Description détaillée | Fabricant |
STA015 | (STA015x) MPEG 2.5 LAYER III AUDIO DECODER WITH ADPCM CAPABILITY | ST Microelectronics |
STA015B | (STA015x) MPEG 2.5 LAYER III AUDIO DECODER WITH ADPCM CAPABILITY | ST Microelectronics |
STA015T | (STA015x) MPEG 2.5 LAYER III AUDIO DECODER WITH ADPCM CAPABILITY | ST Microelectronics |
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