BU9457KV Datasheet, PDF (1/5 Pages) Rohm – USB host MP3 Decoder LSI

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◇Structure
◇Product name
◇Type
◇Applications
◇Functions
Silicon Monolithic integrated circuit
USB host MP3 Decoder LSI
BU9457KV
Audio products, etc.
BU9457KV is 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)
・ 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 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
Limits
-0.3～4.5
Input voltage
Storage temperature range
Operating temperature range
Power dissipation *1
VIN
TSTG
TOPR
PD
-0.3 ～ VDD1 + 0.3
-55～125
-40～85
750
*1：In the case of use at Ta=25℃ or more, 7.5mW should be reduced per 1℃.
Radiation resistance design is not arranged.
Unit
Ｖ
Ｖ
℃
℃
ｍＷ
Comment
DVDDIO, VDD_PLL,
DAVDD, AVDDC
◇ Operating conditions (Ta = 25℃)
Parameter
Supply voltage(Analog, I/O)
Symbol
VDD1
Limits
3.0～3.6
Unit
Comment
Ｖ DVDDIO,VDD_PLL,
DAVDD, AVDDC
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