PT8921 - Princeton Technology

PT8921 Smart Audio Combo-Station with USB Mini-Host & SD/MMC Host Interface Controller

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 ho.

Features

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• 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 con.