Datasheet

ManualsBrandsROHM SEMICONDUCTOR ManualsLinear ICsBU9438KV-E2

SEMICONDUCTOR LSI BU9438KV 1/4

A TSZ02201-BU9438KV-1-2

◇Structure Silicon Monolithic integrated circuit

◇Product name USB host AAC+WMA+MP3 Decoder LSI

◇Type BU9438KV

◇Applications Audio products, etc.

◇Functions BU9438KV 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.

・ 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.

・ 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 Limits Unit Comment

Supply voltage(Analog, I/O) VDD1MAX

-0.3∼4.5 Ｖ

DVDDIO, VDD_PLL,

DAVDD, AVDDC

Input voltage VIN

-0.3 ∼ VDD1 + 0.3 Ｖ

Storage temperature range TSTG

-55∼125 ℃

Operating temperature range TOPR

-40∼85 ℃

Power dissipation *1 PD 750

ｍＷ

*1：In the case of use at Ta=25℃ or more, 7.5mW should be reduced per 1℃.

Radiation resistance design is not arranged.

◇Operating conditions (Ta = 25℃)

Parameter Symbol Limits Unit Comment

Supply voltage(Analog, I/O) VDD1

3.0∼3.6 Ｖ

DVDDIO,VDD_PLL,

DAVDD, AVDDC

MPEG Layer-3 audio decoding technology licensed from Fraunhofer IIS and Thomson.

29/Aug./2007 TSZ02201-BU9438KV-1-2

Target

Status of this document

The Japanese version of this document is the formal specification. A customer may use this translation version only for a reference

to help reading the formal version. If there are any differences in translation version of this document, formal version takes priority.

Summary of content (4 pages)

PAGE 1
SEMICONDUCTOR LSI ◇Structure ◇Product name ◇Type ◇Applications ◇Functions BU9438KV 1/4 Silicon Monolithic integrated circuit USB host AAC+WMA+MP3 Decoder LSI BU9438KV Audio products, etc. BU9438KV 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.
PAGE 2
SEMICONDUCTOR LSI BU9438KV 2/4 ◇Electrical characteristics （Unless specified, Ta=25℃、VDD1=3.3V, DVSS=AVSSC=VSS_PLL=DAVSS=0V, XIN_PLL=16.9344MHz） Limits Parameter Symbol Unit Condition MIN. TYP. MAX.
PAGE 3
SEMICONDUCTOR LSI BU9438KV 3/4 ◇Description of Terminals No.
PAGE 4
SEMICONDUCTOR LSI BU9438KV 4/4 VCDACO RDACO DAVSS VSS_PLL XOUT_PLL XIN_PLL TEST_PLL VDDPLL VOREFI REXTI AVSSC USB_DP USB_DM 33 LDACO 10.0±0.1 48 DAVDD 12.0±0.2 AMUTE ◇External dimensions・Block diagram 48 47 46 45 44 43 42 41 40 39 38 37 36 35 34 33 LED_ERROR/TEST9 49 49 32 32 AVDDC USB PHY PLL Audio DAC LED_PLAY/TEST10 50 31 ATEST1 BU9438KV 10.0±0.1 30 TEST8 Sound Effecter LED_ACCESS 53 29 TEST7 28 TEST6 LED_RANDOM 54 1.25 0.5±0.