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Moteur de recherche de fiches techniques de composants électroniques |
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Moteur de recherche de fiches techniques de composants électroniques |
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PT8921 Fiches technique(PDF) 1 Page - Princeton Technology Corp |
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PT8921 Fiches technique(HTML) 1 Page - Princeton Technology Corp |
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1 / 4 page  Preliminary PT8921 Smart Audio Combo-Station with USB Mini-Host & SD/MMC Host Interface Controller Tel: 886-66296288‧Fax: 886-29174598‧ http://www.princeton.com.tw‧2F, 233-1, Baociao Road, Sindian, Taipei 23145, Taiwan DESCRIPTION The PT8921 is a cost-efficient single chip for audio mini-combo play-station application. The chip integrated the USB2.0 FS host controller, SD/MMC host controller, Sigma-Delta Audio-DAC and WAV/MP3/WMA/AAC Audio-Decoder in one chip. Only few external components needed in application circuits makes it suite for the audio play-station system with USB2.0 FS host, SD/MMC host and i-Pod audio control interfaces. The I/O interfaces are totally following the USB2.0 FS host class interface specification and SD/MMC card specification. The stand alone audio play-station and no special driver software need to install on this system by user in the recent market. The PT8921 is a truly plug and play audio play-station controller with USB2.0 FS host and SD/MMC host interfaces. There are some extended functions for the different audio sources and applications. The embedded 8-GPIO pins provide the player function key and other adjustment feature. APPLICATIONS • Portable Audio Play-Station • Car Audio Combo-Station • Home Audio Play-Station FEATURES • Built-in USB 2.0 FS Mini-Host interface. • Compliant with USB Mass-storage class specification. • Built-in SD/MMC Host interface. • Compliant with SD/SDIO Card specification Version 2.0. • Compliant with MMC Card specification Version 4.2. • Support FAT12, FAT16 and FAT32 file system. • Built-in 8051 base MCU with 8K ROM. • Support ISP (In-System-Programmable) Interface for external program Flash-ROM. • Built-in WAV/MP3 WMA/AAC Format Audio-Decoder. • Support MPEG1/2/2.5 layer III audio decoding. • Built-In Flat/Pop/Jazz/Classic/Rock processing function. • Built-In Digital Volume control function • Built-in SNR=85dB (A-Weighted) Sigma-Delta DAC, PWM Output. • Built-in I 2C Master/Slave Control Interface. • Built-in UART Interface to communicate with i-Pod. • Built-in external I 2S input for optional audio input sources, and support one I 2S output connecting an external advanced audio controller or stand-alone sigma-delta DAC controller. • Packages: 100 Pins LQFP BLOCK DIAGRAM USB 2.0 FS-PHY PLL I2C Master & Slave Regulator DMA MCU 8051 RAM ROM SFR GPIO MP3/WMA/AAC Decoder Host SIE PWM_LP/LN PWM_RP/RN Power DP DM I2C UART VCC GPIO System Clks I2S_INPUT Data FIFO Parallel Flash I/F SD/MMC Host I/F PLL 12 MHz Master Clks Delta Sigma DAC Reset Reset POR PCM-Data PCM-Data (WAV) External Program Flash-Memory SD/MMC Card I2S_OUT I2S_INPUT PWM_OUT Audio Buffer I2S Stream |
Numéro de pièce similaire - PT8921 |
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Description similaire - PT8921 |
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