Overview
A highly integrated SOC for MP3 player, AU6850 integrates MCU, MP3 decoder, USB Host controller, SD/MMC card controller, a 16-bit audio decoder and an IR decoder in a single chip. Besides AU6850 embedded a 32KB OTP memory, which provide an ultra low cost, low power consumption, flexible and more powerful Host MP3 player solution compared with other traditional flash-MP3 player.
   
Features
● Low power 0.18um CMOS technology
● Power supply 1.8V/3.3V, power consumption 80mW
● Enhanced 8051, up to 10 times faster than standard 8051
● Dynamic MCU running clock frequency adjustment to reduce power
    consumption and EMI
● USB2.0 full-speed host controller
● SD/MMC card controller
● Support MPEG 1/2/2.5 layer3 decoding, data rate 32kbps ~ 320kbps, including
    VBR
● Support 9 sampling frequency:
    8kHz/11.025kHz/12kHz/16kHz/22.05kHz/24kHz/32kHz/44.1kHz/48kHz
● Embedded sound equalizer
● Support tag format ID3v1 and ID3v2.4
● Support FAT16/FAT32 file system
● Embedded 16-bit sigma-delta audio DAC
● Embedded headphone amplifier
● Support IR Remote control
● GPIO for various purposes
● Embedded 32KB OTP memory for program code storage
● Support external NOR flash for program code storage (AU6850A only)
● Support in-system debug through external emulator (AU6850A only)