AU7850 USB HOST MP3/WMA DECODER

Overview
A highly integrated SOC for MP3/WMA player, AU7850 integrates MCU,MP3/WMA decoder, USB Host controller, SD/MMC card controller, SAR-ADC, audio DAC, RTC, LCD driver and an IR decoder in a single chip. Compared with traditional flash-MP3 player, AU7850 offers low cost, low power consumption, flexible and more powerful host MP3/WMA player solution.

Features
Low power 0.18um CMOS technology
Enhanced 8051, up to 10 times faster than standard 8051
USB2.0 full-speed host controller
SD/MMC card controller
Support MPEG 1/2/2.5 layer2/3 decoding, data rate 32kbps ~ 320kbps,
including VBR
Support WMA format, data rate 32kbps ~ 384kbps
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 DAC
1 channel AUX in
1 channel FM in
9 channel 12bit SARADC for peripheral controls
Embedded segment LCD driver, support 1/3 bias or 1/4 bias two types
Embedded low power RTC module
Support IR Remote control
GPIO for various purposes
Embedded LDO, convert 5V to 3.3V and 1.8V
Embedded Power-on-Reset
Embedded 32KB OTP for program code storage


System Application
MP3/WMA audio system

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