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PDF BU9458KV Data sheet ( Hoja de datos )
| Número de pieza | BU9458KV | |
| Descripción | USB host AACWMAMP3 Decoder LSI | |
| Fabricantes | ROHM Semiconductor | |
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◇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.
・ 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)
◇ 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
VIN
TSTG
TOPR
-0.3 ～ VDD1 + 0.3
-55～125
-40～85
Power dissipation *1
PD
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
1 page  
Notice
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Notes
No copying or reproduction of this document, in part or in whole, is permitted without the
consent of ROHM Co.,Ltd.
The content specified herein is subject to change for improvement without notice.
The content specified herein is for the purpose of introducing ROHM's products (hereinafter
"Products"). If you wish to use any such Product, please be sure to refer to the specifications,
which can be obtained from ROHM upon request.
Examples of application circuits, circuit constants and any other information contained herein
illustrate the standard usage and operations of the Products. The peripheral conditions must
be taken into account when designing circuits for mass production.
Great care was taken in ensuring the accuracy of the information specified in this document.
However, should you incur any damage arising from any inaccuracy or misprint of such
information, ROHM shall bear no responsibility for such damage.
The technical information specified herein is intended only to show the typical functions of and
examples of application circuits for the Products. ROHM does not grant you, explicitly or
implicitly, any license to use or exercise intellectual property or other rights held by ROHM and
other parties. ROHM shall bear no responsibility whatsoever for any dispute arising from the
use of such technical information.
The Products specified in this document are intended to be used with general-use electronic
equipment or devices (such as audio visual equipment, office-automation equipment, commu-
nication devices, electronic appliances and amusement devices).
The Products specified in this document are not designed to be radiation tolerant.
While ROHM always makes efforts to enhance the quality and reliability of its Products, a
Product may fail or malfunction for a variety of reasons.
Please be sure to implement in your equipment using the Products safety measures to guard
against the possibility of physical injury, fire or any other damage caused in the event of the
failure of any Product, such as derating, redundancy, fire control and fail-safe designs. ROHM
shall bear no responsibility whatsoever for your use of any Product outside of the prescribed
scope or not in accordance with the instruction manual.
The Products are not designed or manufactured to be used with any equipment, device or
system which requires an extremely high level of reliability the failure or malfunction of which
may result in a direct threat to human life or create a risk of human injury (such as a medical
instrument, transportation equipment, aerospace machinery, nuclear-reactor controller, fuel-
controller or other safety device). ROHM shall bear no responsibility in any way for use of any
of the Products for the above special purposes. If a Product is intended to be used for any
such special purpose, please contact a ROHM sales representative before purchasing.
If you intend to export or ship overseas any Product or technology specified herein that may
be controlled under the Foreign Exchange and the Foreign Trade Law, you will be required to
obtain a license or permit under the Law.
Thank you for your accessing to ROHM product informations.
More detail product informations and catalogs are available, please contact us.
ROHM Customer Support System
http://www.rohm.com/contact/
www.rohm.com
© 2010 ROHM Co., Ltd. All rights reserved.
R1010A
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