PT8921 Overview
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.
Key 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
