1/5 ◇Structure ◇Product name ◇Type ◇Applications ◇Functions Silicon Monolithic integrated circuit USB host + MP3 Encoder + WAV/AAC/WMA/MP3 Decoder LSI BU94705KV Audio products, etc. BU94705KV is MP3 encoder + WAV/AAC/WMA/MP3 decoder IC which contains program download function from external serial Flash ROM and contains USB host, SD card I/F, CD-ROM 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 format I/F function contained. MP3 encode function contained. (available for MPEG1, Layer3, support up to 2X input speed) 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) WAV format file playing function contained. Sample Rate Converter contained. System Controller contained. FAT analysis function contained. CD-ROM I/F function and CD-ROM decode function contained. Browsing function of other File Names, Folder Names on music playing contained. ID3TAG and WMATAG and AACTAG Analysis. Fast forward playing and fast backward playing function contained. External processor can control. Resume function contained. Audio DAC contained. Sound Effect function contained. 2 Digital Audio Out(I S, EIAJ, S/PDIF) function contained. 2 Digital Audio Input(I S, EIAJ) function contained. Program download function from external serial Flash ROM contained. Regulator for internal CORE power supply contained. VQFP80pin(0.5mm pitch) ◇Absolute maximum ratings (Ta = 25〬C) Parameter Symbol Supply voltage(Analog, I/O) VDD1MAX Limits -0.3～4.5 Unit Ｖ 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 900 ｍＷ *1：In the case of use at Ta=25℃ or more, 9mW should be reduced per 1℃. Radiation resistance design is not arranged. ◇Operating conditions (Ta = 25℃) Parameter Symbol Limits Unit 3.0～3.6 Ｖ Supply voltage(Analog, I/O) VDD1 REV. A Comment DVDDIO, VDD_PLL, DAVDD, AVDDC Comment DVDDIO,VDD_PLL, DAVDD, AVDDC 2/5 ◇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. <Total > 60 90 Circuit current (VDD1 USB1) IDD1USB1 mA *1 When USB memory is played. Circuit current (VDD1 SD1) IDD1SD1 35 60 mA *1 When SD card is played. <Digital block> H-Level input voltage VIH VDD1*0.7 － VDD1 V *3 L-Level input voltage VIL DVSS － VDD1*0.3 V *3 H-Level output voltage1 VOH1 VDD1-0.4 － VDD1 V IOH=-1.6mA, *4 L-Level output voltage1 VOL1 0 － 0.4 V IOL=1.6mA. *4 L-Level output voltage2 VOL2 0 － 0.4 V IOL=3.6mA, *5 H-Level output voltage3 VOH3 VDD1-0.4 － VDD1 V IOH=-0.6mA, *6 L-Level output voltage3 VOL3 0 － 0.4 V IOL=0.6mA, *6 H-Level output voltage4 VOH4 VDD1-1.0 － VDD1 V IOH=-0.6mA, *7 L-Level output voltage4 VOL4 0 － 1.0 V IOL=0.6mA, *7 <USB-HOST > H-Level input voltage VIHUSB VDD1*0.6 － VDD1 V *8 L-Level input voltage VILUSB AVSSC － VDD1*0.3 V *8 Output impedance(H) ZOH 22.0 45.0 60.0 Ω *8 Output impedance(L) ZOL 22.0 45.0 60.0 Ω *8 H-Level output voltage VOHUSB VDD1-0.5 － VDD1 V *8 L-Level output voltage VOLUSB 0 － 0.3 V *8 Rise/Fall time Tr/Tf － 11 － ns *8, Output capacity 50pF Voltage of crossing point VCRS － VDD1/2 － V *8, Output capacity 50pF Range of differential input VDIFF 0.8 － 2.5 V *8 Differential input sensitivity VSENS 0.2 － － V *8 Pull-down resistance RPD 14.25 20.0 24.8 kΩ *8 <Audio DAC> Distortion rate THD － 0.005 － % 1kHz, 0dB, sine, *9 Dynamic range DR － 90 － dB 1kHz, -60dB, sine, *9 S/N ratio S/N － 95 － dB *9 Max output level VSMAX － 0.67 － Vrms 1kHz, 0dB, sine, *9 *1 3.3V system I/O, Analog Power supply(VDD1), 1kHz, 0dB, sine-wave playing *3 1, 3, 4-9, 14-23, 29, 31-32, 34-35, 61-63, 71-76 pin *4 9, 11-12, 14-15, 18-20, 30, 36, 58-60, 61-67, 69-70 pin *5 2, 3, 17 pin *6 24-26, 28, 29 pin *7 49 pin *8 41, 42 pin *9 53, 55 pin REV. A 3/5 ◇Description of Terminals No. Name 1 RESETX I/O I System reset terminal 2 TEST15 O [TEST15]Pull-up at 2.2k ohm to VDD1 system power supply terminal(TEST PIN) 3 TEST16 O [TEST16]Pull-up at 2.2k ohm to VDD1 system power supply terminal(TEST PIN) 4 SEL_SLAVE I Slave mode selection（H：Stand Alone mode, L：Slave mode） 5 6 SEL_MP3/INREQI SEL_DOUT/LRCKI I I [SEL_DOUT]Digital Audio out selection（H：Disable、L：Enable）, [LRCKI]Digital Audio channel clock input terminal 7 SEL_VOL/BCKI I [SEL_VOL] Volume operation selection（H：Volume+- Effective, L：VOL+-Inavalidity）, [BCKI]Digital Audio bit clock input terminal I [SEL_APLAY] At device(USB,SD) connection, Auto Play mode selection(H:It stop, L:It playback), [SDATAI]Digital Audio data input terminal 8 SEL_APLAY/SDATAI Description of terminals [SEL_MP3]MPEG Audio Layer selection（H：Only MP3, L：MP1, MP2 and MP3 can be playback）, [INREQI]Input data valid 9 SEL_UTPKT/BFULLO I/O [SEL_UTPKT] USB test packet output selection（H：Normal、L：Test packet）,[BFULLO]Input buffer FULL flag output terminal 10 DVSS － GND terminal 11 IRPTO O To HOST interruption output terminal 12 SEARCH O Search flag terminal 13 DVDDIO － IO Power supply(VDD1) terminal 14 KEY_ROW1/MCHNG I/O [KEY_ROW1]KEY Matrix terminal, [MCHNG]Music change flag terminal 15 KEY_ROW2/BUSY I/O [KEY_ROW2]KEY Matrix terminal, [BUSY]Busy flag terminal 16 KEY_ROW3/SCL I 17 KEY_ROW4/SDA I/O [KEY_ROW4]KEY Matrix terminal, [SDA]I2C slave data I/F terminal 18 KEY_COL1/A0 O/I [KEY_COL1]KEY Matrix terminal, [A0]I2C slave address selection 19 KEY_COL2/A1 O/I [KEY_COL2]KEY Matrix terminal, [A1]I2C slave address selection 20 KEY_COL3/SEL_I2C O/I [KEY_COL3]KEY Matrix terminal, [SEL_I2C]Pull-up to VDD1 system power supply terminal 21 SD_WP I SD card Write Protect terminal 22 SD_CON I SD card Connect terminal 23 SD_DO I SD card Data In terminal 24 SD_CLK O SD card Clock terminal 25 SD_DI O SD card Data Out terminal 26 SD_CS O SD card Chip select terminal 27 DVSS GND terminal 28 FL_CS － O 29 TEST/CLK12MO I/O [TEST] Pull-up to VDD1 system power supply terminal(TEST PIN), [CLK12MO]12MHz clock output terminal 30 TEST5 O [TEST5]OPEN (TEST PIN) 31 TEST6 I [TEST6]Pull-up to VDD1 system power supply terminal(TEST PIN) 32 TEST7 I [TEST7]Pull-up to VDD1 system power supply terminal(TEST PIN) 33 DVDDIO 34 TEST8 － I 35 TEST9 I [TEST9]Pull-up to VDD1 system power supply terminal(TEST PIN) 36 TEST10 O OPEN (TEST PIN, IPL ERROR Flag output) 37 DVSS － GND terminal 38 DVDD_M2 － CORE Power supply(VDD2) monitor terminal. Connect to DVDD_M1 pin. 39 ATEST1 O USB TEST terminal(TEST PIN), OPEN 40 AVDDC － USB Power supply(VDD1)terminal 41 USB_DM I/O USB D－I/O terminal 42 USB_DP I/O USB D+ I/Oterminal 43 AVSSC － USB GND terminal 44 REXTI O USB bias resistor(12kΩ) connecting terminal 45 46 VOREFI VSS_PLL PLL GND terminal 47 TEST_PLL1 O － I 48 XIN_PLL I X'tal(16.9344MHz) connecting input terminal 49 XOUT_PLL O X'tal(16.9344MHz) connecting output terminal 50 TEST_PLL2 O PLL TEST terminal(TEST PIN), Pull-up to VDD1 system power supply terminal 51 VDD_PLL － PLL Power supply(VDD1) terminal 52 DAVSS － Audio DAC GND terminal 53 RDACO O Audio DAC Rch Line output terminal 54 VCDACO O Audio DAC Reference voltage output teminal 55 LDACO O Audio DAC Lch Line output terminal 56 DAVDD DVSS － － GND terminal AMUTE TEST11 O O OPEN (TEST PIN) 57 58 59 [KEY_ROW3]KEY Matrix terminal, [SCL]I2C slave clock I/F input terminal Serial FLASH ROM Chip select terminal IO Power supply(VDD1) terminal [TEST8]Pull-up to VDD1 system power supply terminal(TEST PIN) USB TEST terminal(TEST PIN), OPEN PLL TEST terminal(TEST PIN), OPEN Audio DAC Power supply(VDD1) terminal Audio Mute output terminal（H：MUTE OFF, L：MUTE ON） REV. A 4/5 60 TEST12/MCLK O [TEST12] OPEN (TEST PIN), [MCLK] Digital Audio master clock (16.9344MHz) output terminal 61 LED_ERROR/ SS_CS O/I [LED]Lighting output terminal at ERROR, [SS_CS] Slave SIO Chip select In terminal 62 LED_PLAY/SS_DI O/I [LED]Lighting output terminal at PLAY, [SS_DI] Slave SIO Data In terminal 63 LED_PSD/SS_CLK O/I [LED]Lighting output terminal at PLAY for SD card, [SS_CLK] Slave SIO Clock In terminal 64 LED_PUSB/SS_DO O [LED]Lighting output terminal at PLAY for USB memory, [SS_DO] Slave SIO Data Out terminal 65 LED_ACCESS/LRCKO O [LED]Lighting output terminal when memory is being accessed,[LRCKO]Digital Audio channel clock or SPDIF output terminal 66 LED_RANDOM/BCKO O [LED]Lighting output terminal at PLAY for RANDOM, [BCKO]Digital Audio bit clock output terminal 67 LED_REPEAT/SDATAO O [LED]Lighting output terminal at PLAY for REPEAT, [SDATAO]Digital Audio data output terminal 68 DVDDIO － IO Power supply(VDD1) terminal 69 TEST13 O OPEN (TEST PIN) 70 TEST14 O OPEN (TEST PIN) 71 SEL_USB I At device(USB,SD) connection, 1st device detection selection(H:USB, L:SD) 72 TEST4 I Pull-up to VDD1 system power supply terminal(TEST PIN) 73 TEST3 I Pull-up to VDD1 system power supply terminal(TEST PIN, L: IPL WRITE MODE1) 74 TEST2 I Pull-up to VDD1 system power supply terminal(TEST PIN, L: IPL WRITE MODE2) 75 TEST1 I Pull-up to VDD1 system power supply terminal(TEST PIN) 76 TMODE I Connect to GND(TEST PIN) 77 DVSS － GND terminal 78 DVDD_M1 － CORE Power supply(VDD2) monitor terminal, Connect to bypass condenser 79 DVDDIO － IO Power supply(VDD1) terminal 80 TEST0 I Connect to GND(TEST PIN) ◇External dimensions・Block diagram 14.0±0.2 12.0±0.1 60 41 40 0.5±0.15 1.25 Lot No. 80 21 1 1.25 1.0±0.2 BU94705KV 12.0±0.1 14.0±0.2 61 20 +0.05 0.145 -0.03 1 PIN mark 1.6MAX S +6゜ 4゜ -4゜ 0.1±0.05 1.4±0.05 Unit : mm Figure 1. 0.5±0.1 0.2 +0.05 -0.04 0.08 0.08 M S PKG: VQFP80 Drawing No. EX253-5001-2 External dimention Figure 2. REV. A Block diagram 5/5 Caution (1) Power on Reset Please keep the terminal RESETX at the Low level when the power supply starts. After completely starting up 3.3V system power supply , afterwards, please make the terminal RESETX High level after 100us after the oscillation of the system clock is steady. Moreover, please make the terminal RESETX Low level during 100us or more when resetting it while operating.. (2) About compatibility in USB memory device and SD memory card According to the file structure and communication speed of an USB memory, SD memory card, this LSI might not play back correctly. (3) About turning on the power supply Current rush might flow momentarily by the order of turning on the power supply and the delay in IC with two or more power supplies, and note the capacity of the power supply coupling, the power supply, and width and drawing the GND pattern wiring. (4) About absolute maximum rating When the absolute maximum rating such as the applied voltage and the ranges of the operating temperature is exceeded, LSI might be destroyed. Please apply neither voltage nor the temperature that exceeds the absolute maximum rating. Please execute physical measures for safety such as fuse when it is thought to exceed the absolute maximum rating, and examine it so that the condition to exceed the absolute maximum rating is not applied to LSI. (5) About GND Voltage In any state of operation must be the lowest voltage about the voltage of the terminal GND. Please actually confirm the voltage of each terminal is not a voltage that is lower than the terminal GND including excessive phenomenon. (6) About design of overheating malfunction preventive circuit Please design overheating malfunction preventive circuit with an enough margin in consideration of a permissible loss in the state of using actually. (7) About the short between terminals and the mounting by mistake Please note the direction and the gap of position of LSI enough about LSI when you mount on the substrate. LSI might be destroyed when mounting by mistake and energizing. Moreover, LSI might be destroyed when short-circuited by entering of the foreign substances between the terminal and GND, between terminals, between the terminal and the power supply of LSI. (8) About operation in strong electromagnetic field Use in strong electromagnetic field has the possibility of malfunctioning and evaluate it enough, please. (9) About 2X speed recording Recording to a memory with slow access speed may require data connection operation. 2X speed recording to all the memories cannot be guaranteed. (10) Power off or memory disconnection under memory writing The sudden power off or memory disconnection during recording or file write operation to a memory may break the data in a memory. (11) Browsing operation With a memory with slow access speed, Browsing operation during music playing may generate skipping. (12) CD-ROM playing CD-ROM playing operation is premised on data being inputted so that an internal data buffer may not become empty. When an input does not meet the deadline and internal data buffers become empty, skipping occurs. (13) Playing time of MP3 file The playing time of an MP3 file may shift when fast forward playing, rewinding playing, and VBR playing. (14) Write-in operation exceeding memory size When memory size is exceeded, IC will stop writing to a file and will be in an error condition. (15) Write-in operation of the file size exceeding FAT specification When file size is exceeded, IC will stop writing to a file and will be in an error condition. (16) About WMA Windows Media Audio is the music compression technology which Microsoft Corp. developed. Windows Media is the registered trademark of U.S. Microsoft Corporation in the U.S., and other countries. (17) About I2C format I/F Although this LSI has adopted the I2C format, the level shifter circuit is not built in. For this reason, level shifter is needed for connection with the device besides the range of operating power supply voltage of this LSI. REV. A Notice 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. 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