
ROHM Semiconductor
◇ Structure Silicon Monolithic integrated circuit
◇ Product name USB host AAC+WMA+MP3 Decoder LSI
◇ Type BU9458KV
◇ Applications Audio products, etc.
◇ Functions BU9458KV is AAC+WMA+MP3 decoder IC which contains USB host and SD card I/F, audio DAC,
system controller, regulator for internal CORE power supply.
• USB2.0 Full Speed host I/F function contained.
• 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. (available for WMA9 standard and not available for DRM)
• AAC decode function contained. (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.
• Audio DAC contained.
• Sound Effect function contained.
• Digital Audio Out(I2S, S/PDIF) function contained.
• File Name, Folder Name Sorting.
• ID3TAG and WMATAG and AACTAG Analysis.
• Regulator for internal CORE power supply contained.
• VQFP64pin(0.5mm pitch)