BU9458KV Datasheet | ROHM

.. 1/4 ◇Structure ◇Product name ◇Type ◇Applications ◇Functions Silicon Monolithic integrated circuit USB host AAC+WMA+MP3 Decoder LSI BU9458KV Audio products, etc. 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. 2 - I C 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. 2 - Digital Audio Out(I S, 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) ◇ Absolute maximum ratings (Ta = 25〬C) Parameter Symbol Supply voltage(Analog, I/O) VDD1MAX Input voltage Storage temperature range Operating temperature range Power dissipation - 1 VIN TSTG TOPR PD Limits -0.3～4.5 -0.3 ～ VDD1 + 0.3 -55～125 -40～85 750 Unit Ｖ Ｖ ℃ ℃ ｍＷ ment DVDDIO, VDD_PLL, DAVDD, AVDDC - 1：In the case of use at Ta=25℃ or more, 7.5m W should be reduced per 1℃. Radiation resistance design is not arranged. ◇ Operating conditions (Ta = 25℃) Symbol VDD1 Limits 3.0～3.6 Unit Ｖ ment DVDDIO,VDD_PLL, DAVDD, AVDDC Parameter Supply voltage(Analog, I/O) MPEG Layer-3 audio coding technology licensed from Fraunhofer IIS and Thomson. The fee related to above license and its administration costs are included in the sales price of this product. REV. B .. 2/4 ◇Electrical characteristics （Unless...