USB Audio Decoder ICs - BU94605AKV
ROHM's USB Audio Decoder ICs integrate a USB 2.0 host, SD memory card controller, AAC decoder, WMA decoder, MP3 decoder, Audio DAC amp, and a system controller all on a single chip, allowing easy playback of music stored in USB flash memory using an audio player. They can be easily added to virtually any audio device (i.e. CD player, mini-component stereo, portable player, car stereo) for greater functionality.
Specifications:
Vcc(Min.)[V]
3.0
Vcc(Max.)[V]
3.6
I/F
I2C BUS
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
Operating Temperature (Min.)[°C]
-40
Operating Temperature (Max.)[°C]
85
Features:
・ 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.