
ROHM Semiconductor
Description
BU94601KV / BU94603KV / BU94604BKV are AAC+ WMA + MP3 decoder IC which contains USB host, SD card I/F, audio DAC, system controller, and regulator for internal CORE power supply.
FEATUREs
◾ USB2.0 Full Speed host I/F function contained.
◾ Protocol conversion from I2C to USB HID or from
USB HID to I2C. (Only BU94604BKV)
◾ SD card I/F function contained.
◾ I2C I/F function contained.
◾ FAT analysis function contained.
◾ MP3 decode function contained. (available for
MPEG1, 2 and 2.5, Layer 1, 2 and 3)
◾ WMA decode function contained.
(Except BU94601KV)
Available for WMA9 standard and not available for
DRM
◾ AAC decode function contained.
(Except BU94601KV)
Available for MPEG4 AAC-LC and not available for
DRM
◾ Sample Rate Converter contained.
◾ System Controller contained.
◾ LED Controller contained.
◾ KEY matrix Controller contained.
◾ Stand Alone mode contained.
◾ External processor can control. (Slave mode)
◾ Audio DAC contained.
◾ Sound Effect function contained.
◾ Digital Audio Output(I2S, S/PDIF) function contained.
◾ File Name, Folder Name Sorting.
◾ ID3TAG and WMATAG and AACTAG Analysis.
◾ Reading a specified file data is possible from USB
memory.
◾ LUN is selectable.
◾ Regulator for internal CORE power supply
contained.
◾ VQFP64pin(0.5mm pitch)
APPLICATIONs
Audio products, etc