 |
Moteur de recherche de fiches techniques de composants électroniques |
|
|
Moteur de recherche de fiches techniques de composants électroniques |
|
STA014B Fiches technique(PDF) 4 Page - STMicroelectronics |
|
||||||||||||||||||||||||||||||
STA014B Fiches technique(HTML) 4 Page - STMicroelectronics |
|
|
4 / 45 page  THERMAL DATA Symbol Parameter Value Unit Rth j-amb Thermal resistance Junction to Ambient 85 °C/W 1. OVERVIEW 1.1 - MP3 decoder engine The MP3 decoder engine is able to decode any Layer III compliant bitstream: MPEG1, MPEG2 and MPEG2.5 streams are supported. Besides audio data decoding the MP3 engine also per- forms ANCILLARY data extraction: these data can be retrieved via I2C bus by the application microcontroller in order to implement specific functions. Decoded audio data goes through a software vol- ume control and a two-band equalizer blocks be- fore feeding the output I2S interface. This results in no need for an external audio processor. MP3 bitstream is sent to the decoder using a sim- ple serial input interface (see pins SDI, SCKR, BIT_EN and DATA_REQ), supporting input rate up to 20 Mbit/s. Received data are stored in a 256 bytes long input buffer which provides a feedback line (see DATA_REQ pin) to the bit- stream source (tipically an MCU). 1.2 - ADPCM encoder/decoder engine This device also embeds a multistandard ADPCM encoder/decoder supporting different sample rates (from 8 KHz up to 32 KHz) and different sample sizes (from 8 bit to 32 bits). During en- coding process two different interfaces can be used to feed data: the serial input interface (same interface used also to feed MP3 bitstream) or the ADC input interface, which provides a seamless connection with an external A/D converter. The currently used interface is selected via I2C bus. Also to retrieve encoded data two different inter- faces are available: the I2C bus or the faster GPSO output interface. GPSO interface is able to output data with a bitrate up to 5 Mbit/s and its control pins (GPSO_SCKR, GPSO_DATA and GPSO_REQ) can be configured in order to easily fit the target application. ABSOLUTE MAXIMUM RATINGS Symbol Parameter Value Unit VDD Power Supply -0.3 to 4 V Vi Voltage on Input pins -0.3 to VDD +0.3 V VO Voltage on output pins -0.3 to VDD +0.3 V Tstg Storage Temperature -40 to +150 °C Toper Operative ambient temp -20 to +85 °C STA014-STA014B-STA014T 4/45 |
Numéro de pièce similaire - STA014B |
|
Description similaire - STA014B |
|
|
Lien URL |
| Politique de confidentialité |
| ALLDATASHEET.FR |
| ALLDATASHEET vous a-t-il été utile ? [ DONATE ] |
À propos de Alldatasheet | Publicité | Contactez-nous | Politique de confidentialité | Echange de liens | Fabricants All Rights Reserved©Alldatasheet.com |
| Russian : Alldatasheetru.com | Korean : Alldatasheet.co.kr | Spanish : Alldatasheet.es | French : Alldatasheet.fr | Italian : Alldatasheetit.com Portuguese : Alldatasheetpt.com | Polish : Alldatasheet.pl | Vietnamese : Alldatasheet.vn Indian : Alldatasheet.in | Mexican : Alldatasheet.com.mx | British : Alldatasheet.co.uk | New Zealand : Alldatasheet.co.nz |
|
Family Site : ic2ic.com |
icmetro.com |
French ▼
English
Chinese
German
Japanese
Russian
Korean
Spanish
French
Italian
Portuguese
Polish
Vietnamese
Indian
Mexican
British
New Zealand
