2D/3D/CAD
- VQFP80 Footprint / Symbol
BU94702AKV
USB音频解码器IC
BU94702AKV
BU94702AKV
USB音频解码器IC
罗姆的USB音频解码器LSI是将USB2.0 Host、SD存储卡控制器、AAC解码器、WMA解码器、MP3解码器、Audio DAC、系统控制器全部集成在1个芯片中的音乐播放LSI。只需连接记录有压缩音乐数据的USB设备，就能轻松实现音频播放。这样，就可轻松搭载至光盘录音机、迷你立体声音响组合、汽车音响、便携式播放器等音响设备，提高客户的设备附加价值。
主要规格
特性：
Vcc(Min.)[V]
3
Vcc(Max.)[V]
3.6
Digital Audio I/F
I2S SPDIF
USB
USB2.0 Full Speed
SD
MMC SD / miniSD / microSD / SDHC
Display information
Number(Folder, File), Reproduction time, Name(Folder, File), Tag(Artist, Album, Title)
MP3
MPEG 1, 2, 2.5 LAYER 1, 2, 3
WMA
WMA9 Standard
AAC
MPEG4 AAC-LC
I/F
I2C BUS
Operating Temperature (Min.)[°C]
-40
Operating Temperature (Max.)[°C]
85
Package Size [mm]
14x14 (t=1.6)
特点：
・ USB2.0 Full Speed host I/F function contained.・ SD card I/F function contained.
・ I²C format I/F function contained.
・ Protocol conversion from I²C to USB HID or from USB HID to I²C. *1
・ MP3 encode function contained. *2,*3,*10
・ MP3 decode function contained. *4
・ WMA decode function contained. *5
・ AAC decode function contained. *6,*7
・ WAV format file playing function contained. *7
・ Sample Rate Converter contained. *8
・ System Controller contained.
・ FAT analysis function contained.
・ CD-ROM I/F function and CD-ROM decoder function contained.
・ Browsing function of File Names, Folder Names on music playing contained.
・ ID3TAG and WMATAG and AACTAG Analysis.
・ Fast forward/backward playing function contained.
・ Resume function contained.
・ File data Reading/Writing function contained.
・ Program download function from external serial Flash ROM contained.
・ Audio DAC and Sound Effect function contained.
・ Digital Audio Out function contained. *9
・ Regulator for internal CORE power supply contained.
