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datashee t product structure silicon monolithic integrated circuit radiation resistance design is not arranged 1/ 66 tsz02201-0v1v0e600170-1-2 ? 20 16 rohm co., ltd. all rights reserved. 2016.01.05 rev.001 www.rohm.com tsz22111 ? 14 ? 001 usb audio decoder lsi series aac /wma/mp3 + sd memory card + ipod bu9450 2c xxx series description bu9450 2c xxx series are wav/ aac /wma/mp3 decoder lsi which contains usb host , sd card i/f , audio dac , system controller , regulator for internal core power supply. features ? usb2.0 full speed host i/f function contained. ? sd card i/f function contained. ? i 2 c format i/f function contained. ? protocol conversion from i 2 c to usb hid or from usb hid to i 2 c. ? 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 playi ng function contained. ? sample rate converter contained. ? system controller contained. ? fat analysis function contained. ? folder pass table making function contained. ? id3tag and wmatag a nd aactag analysis. ? fast forward playing and fast backward playing function contained. ? resume function contained. ? reading a specified file data is possible from connected memory. ? lun is selectable. ? sound effect function contained. ? digital audio out function contained. (i 2 s , eiaj , s/pdif) ? audio dac contained. ? regulator for internal core power supply contained. applications audio products , etc package w(typ) x d(typ) x h(max) vqfn040v6060 6.00mm x 6.00mm x 1.00mm sqfp-t52 12 .00mm x 12 .00mm x 1.50mm line up part number package ordering part number bu94502cmuv vqfn040v6060 reel of 2000 bu94502cmuv- e2 bu94502c ks2 sqfp-t52 tray of 1000 bu94502c ks2 downloaded from: http:///
2/ 66 bu94502cxxx series tsz02201-0v1v0e600170-1-2 ? 20 16 rohm co., ltd. all rights reserved. 2016.01.05 rev.001 www.rohm.com tsz22111 ? 15 ? 001 basic circuit application diagram -part 1 figure 1. an example of connection circuit application(bu9450 2c muv) this lsi builds in regulator for internal core power supply (1.5v). dvdd _m terminal of 10 pin connect to bypass condenser and dont connect to power supply (3.3v) please confirm the optimal oscillation circuit parameters applicable to your systems or products with the oscillator manufacturer in advance. vqfn040v6060 package exposes its frame of the backside of p ackage. note that this part is assumed to use after providing heat dissipation treatment to improve he at dissipation efficiency. try to occupy as wide as possible with heat dissipation pattern not only on the board su rface but also the backside. downloaded from: http:///
3/ 66 bu94502cxxx series tsz02201-0v1v0e600170-1-2 ? 20 16 rohm co., ltd. all rights reserved. 2016.01.05 rev.001 www.rohm.com tsz22111 ? 15 ? 001 basic circuit application diagram -part2 figure 2. an example of connection circuit application(bu94502cks2) this lsi builds in regulator for internal core power supply (1.5v). dvdd _m terminal of 52 pin connect to bypass condenser and dont connect to power supply (3.3v) please confirm the optimal oscillation circuit parameters applicable to your systems or products with the oscillator manufacturer in advance. downloaded from: http:///
4/ 66 bu94502cxxx series tsz02201-0v1v0e600170-1-2 ? 20 16 rohm co., ltd. all rights reserved. 2016.01.05 rev.001 www.rohm.com tsz22111 ? 15 ? 001 difference of bu9450 2c xxx series features item bu9450 2c muv bu94502c ks2 package vqfn040v6060 sqfp-t52 number of pins 40pin 52pin power supply 3. 3v (inner 1. 5v regulator ) 3. 3v (inner 1. 5v regulator ) usb host i/f usb full speed(12mbps) , usb mass storage class usb full speed(12mbps) , usb mass storage class sd card i/f spi mode sd , sdhc , mmc , mini-sdcard spi mode sd , sdhc , mc , mini-sdcard protocol conversion from i2c to usb hid or from usb hid to i2c supported supported i 2 c command i/f (slave) supported supported patch cord download supported supported change the setting of timeout and retry mode in usb memory or sd card mount operation supported supported audio line output supported supported digital audio output i 2 s , eiaj , spdif i 2 s , eiaj , spdif sample rate convertor supported supported clock 16 .9344mhz (note 1) 16 .9344mhz (note 1) playable mp3 files *. mp3 , *. mp2 , *. mp1 *. mp3 , *. mp2 , *. mp1 playable wma files *. asf , *. wma *. asf , *. wma playable aac files *. m4a , *. 3gp , *. mp4 *.m4a , *. 3gp , *. mp4 playable wav files *. wav *. wav downloaded from: http:///
5/ 66 bu94502cxxx series tsz02201-0v1v0e600170-1-2 ? 20 16 rohm co., ltd. all rights reserved. 2016.01.05 rev.001 www.rohm.com tsz22111 ? 15 ? 001 block diagram figure 3. block diagram usb i/f sd i/f mp3/wma/ aac/wav decoder data buffer src i2s out spdif out tag analysis / browsing system controller command i/f serial (spi) data i/f usb/ system pll 1.5v ldo i2s out spidif out audio dac main control block mcu power amp 01:10 u s b /sd title 5. song_e artist artist a album album z user i/f file system (fat12 /16/32) 16.9344 mhz 3.3v downloaded from: http:///
6/ 66 bu94502cxxx series tsz02201-0v1v0e600170-1-2 ? 20 16 rohm co., ltd. all rights reserved. 2016.01.05 rev.001 www.rohm.com tsz22111 ? 15 ? 001 arrangement of terminals bu94502cmuv figure 4. arrangement of terminals (bu9450 2c muv) bu94502c ks2 figure 5. arrangement of terminals (bu94502c ks2 ) xin_pll xout_pll tmode dvssio sd_con sd_do sd_clk dvddio dvssio dvdd_m test1 sda scl busy mchng irpto resetx sd_di sd_cs 24 23 22 21 20 19 18 17 16 15 14 13 1 2 3 4 5 6 7 8 9 10 1112 25 26 27 28 3433 32 31 35 36 37 38 30 29 4039 clk24mi mclk data bck lrck/spdif test4 usbdp usbdm avddc avssc rexti davss rdaco ldaco davdd amute dvddio test3 test2 vcdaco search bu94502cmuv vqfn040v6060 xin_pll xout_pll tmode dvssio sd_con sd_do sd_clk dvddio dvssio dvdd_m test1 sda scl busy mchng irpto resetx sd_di sd_cs 11 10 9 8 7 6 5 4 3 2 1 41 40 42 43 44 45 46 47 48 49 50 51 52 1213 3029 28 27 31 32 33 34 3635 clk24mi mclk data bck lrck/spdif test4 usbdp usbdm avddc avssc rexti davss rdaco ldaco davdd amute test3 test2 vcdaco search 14 17 16 15 18 21 20 19 22 23 26 25 24 37 38 39 n.c. n.c. n.c. dvddio n.c. n.c. n.c. n.c. n.c. n.c. n.c. n.c. n.c. bu94502cks2 sqfp-t52 downloaded from: http:///
7/ 66 bu94502cxxx series tsz02201-0v1v0e600170-1-2 ? 20 16 rohm co., ltd. all rights reserved. 2016.01.05 rev.001 www.rohm.com tsz22111 ? 15 ? 001 description of terminals -part1 bu94502cmuv no pin name io cir io pu function 1 dvssio gnd terminal 2 resetx a i pu (note 3) h : release reset , l : reset 3 tmode h i test mode terminal . connect it to gnd. 4 irpto b o connection interrupt output terminal 5 searc b o search flag output terminal 6 mchng b o file play end flag output terminal 7 busy b o command analysis busy output temrinal 8 scl i i (note 2) i 2 c slave clock input terminal 9 sda i i/o (note 2) i 2 c slave data i/o terminal 10 dvdd_m core power (vdd2) monitor terminal . connect it to bypass capacitor. 11 dvssio gnd terminal 12 dvddio io power (vdd1) terminal 13 test1 i test mode terminal . connect it to gnd. 14 xin_pll e i x'tal ( 16 .9344mhz) connection input terminal. 15 xout_pll e o x'tal ( 16 .9344mhz) connection output terminal. 16 test2 h i pu pull it up at vdd1 power. 17 test3 h i pu pull it up at vdd1 power. 18 test4 h i pu (note 1) (note 3) test mode terminal . connect it to gnd. 19 avddc usb power supply (vdd1) terminal 20 avssc usb gnd terminal 21 usb_ dm c i/o usb d i/o terminal 22 usb_ dp c i/o usb d + i/o terminal 23 rexti d o usb bias resistor ( 12k ) connecting terminal arrange the resistance of 12k near pin , and wiring on the pin side doesn't cross with other signal lines. 24 clk24mi b i/o pu (note 3) 24mhz clock input terminal at src through mode 25 lrck/spdif b o digital audio channel clock or spdif output terminal 26 bck b o digital audio bit clock output terminal 27 data b o digital audio data output terminal 28 mclk b o audio master clock ( 12 .288mhz/ 16 .9344mhz) output terminal 29 dvddio io power supply (vdd1) terminal 30 amute g o audio mute output terminal (h mute off , l mute on ) 31 davss audio dac gnd terminal 32 rdaco f o audio dac rch line output terminal 33 vc daco j o audio dac reference voltage output terminal 34 ldaco f o audio dac lch line output terminal 35 davdd b audio dac power supply (vdd1) terminal 36 sd _con b i pu (note 3) sd card connect terminal 37 sd _ do b i sd card data in terminal 38 sd _clk b o sd card clock terminal 39 sd _ di b o sd card data out terminal 40 sd _ cs b o sd card chip select terminal (note 1) pull-up turns off when l is input. (note 2) an external pull-up resistor is required because of open drai n io (note 3) pl ease input l level directly without resistance when you input l to the te rminal with pull-up ( about 33 k ) downloaded from: http:///
8/ 66 bu94502cxxx series tsz02201-0v1v0e600170-1-2 ? 20 16 rohm co., ltd. all rights reserved. 2016.01.05 rev.001 www.rohm.com tsz22111 ? 15 ? 001 description of terminals -part2 bu94502c ks2 no pin name io cir io pu function 1 dvssio gnd terminal 2 dvddio io power (vdd1) terminal 3 test1 i test mode terminal . connect it to gnd. 4 xin_pll e i x'tal ( 16 .9344mhz) connection input terminal. 5 xout_pll e o x'tal ( 16 .9344mhz) connection output terminal. 6 n.c. non connection 7 n.c. non connection 8 test2 h i pu pull it up at vdd1 power. 9 test3 h i pu pull it up at vdd1 power. 10 test4 h i pu (note 1) (note 3) test mode terminal . connect it to gnd. 11 avddc usb power supply (vdd1) terminal 12 avssc usb gnd terminal 13 n.c. non connection 14 usb_ dm c i/o usb d i/o terminal 15 usb_ dp c i/o usb d + i/o terminal 16 rexti d o usb bias resistor ( 12k ) connecting terminal arrange the resistance of 12k near pin , and wiring on the pin side doesn't to cross with ot her signal lines. 17 clk24mi b i pu (note 3) 24mhz clock input terminal at src through mode 18 lrck/spdif b o digital audio channel clock or spdif output terminal 19 n.c. non connection 20 bck b o digital audio bit clock output terminal 21 da ta b o digital audio data output terminal 22 mclk b o audio master clock ( 12 .288mhz/ 16 .9344mhz) output terminal 23 n.c. non connection 24 n.c. non connection 25 dvddio io power supply (vdd1) terminal 26 amute g o audio mute out put terminal (h mute off , l mute on ) 27 davss audio dac gnd terminal 28 rdaco f o audio dac rch line output terminal 29 vcdaco j o audio dac reference voltage output terminal 30 ldaco f o audio dac lch line output terminal 31 davdd b a udio dac power supply (vdd1) terminal 32 n.c. non connection 33 n.c. non connection 34 sd _con b i pu (note 3) sd card connect terminal 35 sd _ do b i sd card data in terminal 36 sd _clk b o sd card clock terminal 37 sd _ di b o sd card data out terminal 38 sd _ cs b o sd card chip select terminal 39 n.c. non connection 40 dvssio gnd terminal 41 n.c. non connection 42 n.c. non connection 43 resetx a i pu (note 3) h : release reset , l : reset 44 tmode h i test mode terminal . connect it to gnd. 45 irpto b o connection interrupt output terminal 46 n.c. non connection 47 search b o search flag output terminal 48 mchng b o file play end flag output terminal 49 busy b o command analysis busy output terminal 50 scl i i (note 2) i 2 c slave clock input terminal 51 sda i i/o (note 2) i 2 c slave data i/o terminal 52 dvdd_m core power (vdd2) monitor terminal connect it to bypass capacitor. (note 1) pull-up turns off when l is input. (note 2) an external pull-up resistor is required because of open drai n io (note 3) please input l level directly without resistance when you input l to the terminal with pull-up ( about 33 k ) downloaded from: http:///
9/ 66 bu94502cxxx series tsz02201-0v1v0e600170-1-2 ? 20 16 rohm co., ltd. all rights reserved. 2016.01.05 rev.001 www.rohm.com tsz22111 ? 15 ? 001 terminal equivalent circuit diagram a b c d e f g h davss davdd i j davss davdd dvddio dvssio dvddio d p d m 15k 15k avssc avssc avddc avddc avssc vdd_pll vdd_pll vss_pll vss_pll xout xin dvddio dvssio dvddio dvddio dvssio dvddio dvssio dvssio downloaded from: http:///
10 / 66 bu94502cxxx series tsz02201-0v1v0e600170-1-2 ? 20 16 rohm co., ltd. all rights reserved. 2016.01.05 rev.001 www.rohm.com tsz22111 ? 15 ? 001 description of each blocks movement -part1 1. usb host interface ? builds in the usb full speed (12mbps) host control function. ? supports the usb mass storage class. ? converts the protocol from i 2 c to usb (hid) or vice versa during communications with the master microcomputer.* ? builds in isochronous transmission functions up to 192byte/frame . * ? builds in the interrupt in transfer function . * ? doesn t support external hub . ? doesn t support mtp. *these functions are available for a device having two or more configurations. 2. sd card interface ? supports the spi mode. ? supports sdhc memory cards. ? supports mmc , mini- sd and micro- sd cards. ? does not support cprm. 3. i 2 c command interface (slave i/f) ? communicates with the master microcomputer using the i 2 c interface format. ? operates as i 2 c slave i/f. ? supports the standard mode (100kbps) and the fast mode ( 400kbps). ? supports 7- bit addresses. 4. audio output ? supports audio line outputs from built- in 1bit-dac. ? builds in the digital soft mute function . * ? supports digital audio outputs of the i 2 s format , the eiaj format and those and the digital audio interface (spdif). ? builds in sound effects including pops , jazz , rock , classic , r&b and bass boost. * *this is available for audio line outputs only . 5. sample rate converter ? converts all su pport sample rates to 44 .1 khz based on the polyphase calculation. ? selection of sample rate converter on / off is possible by the command configuration. * supports only digital audio outputs of the i 2 s and eiaj format and ? when sample rate converter is used in off , enter the clock of 24 .576 mhz synchronizing with the clock of 16 .9344 mhz ( enter xin_pll terminal ) to the clk24mi terminal. 6. system controller ? control all operations including interface control to the master microcomputer , usb device access , sd card access , fat analysis , sort function , decoding , encoding and audio output. ? 7. fat analysis supports fat32 , fat16 and fat12 file sy stem. supports vfat (long file name). supports multi-partition up to 1 partition. supports multi-drive up to 1 drive. supports changeover of lun (logical unit number) and possible that test unit ready of other lun is confirmed during the playback. supports playable folder hierarchies up to 16 hierarchies whose full path including the file name is within 260 characters. supports playable file extension of *. wav for wav files. supports playable file extensions of *. m4a, *.3gp and *. mp4 for aac files. supports playable file extensions of *. asf and *. wma for wma files. supports playable file extensions of *. mp3, *.mp2 and *. mp1 for mp3 files . for *. mp2 and *. mp1 , the function allows you to select whether to play . does not extinguish between upper case letters and lower case letters of file extensions. up to 256 folders and 256 files can be sorted and played in the order of unicode when sorting functional effective. can obtain 5 file names ahead from current music file. can obtain a folder name or file name within 128 bytes. supports 512 , 1024 , 2048 and 4096 bytes per sector. playable file size up to 2g -1 byte. a file over 2gbyte is recognized as a playable file , too . but , it is for 2gbyte -1byte that it can play. supports the device size up to fat specification ( 2t byte). downloaded from: http:///
11 / 66 bu94502cxxx series tsz02201-0v1v0e600170-1-2 ? 20 16 rohm co., ltd. all rights reserved. 2016.01.05 rev.001 www.rohm.com tsz22111 ? 15 ? 001 description of each blocks movement -part2 8. control from master microcomputer (little endian order) can control from the master microcomputer using the i 2 c interface . controllable using commands of play , pause , stop , tune skip , tune forward , folder move , device change , volume setting , repeat change , random play , digital audio output setting , sound effect setting and etc . can read information on internal status during play or stop , folder number , file number within the folder , play time , total number of folders , total number of files , name of folder being played , name of file being played and tag (title , artist , album , genre) , and etc. 9. mp3 decoder ? supports mpeg audio 1 , 2 and 2.5. ? supports layer1 , 2 and 3. ? supports sample rate of 8 k , 16 k , 32 k , 11 .025 k , 22 . 05 k , 44 .1 k , 12 k , 24 k and 48 khz. ? supports bit rate of 8 to 320 kbps and vbr (variable bit rate) . * excluding the free format ? supports id3tag v1 .0 , v.1 , 1 , v2 .2 , v2 .3 and v2 .4. ( up to 128 bytes can obtain for album , artist , title and genre , respectively.) 10 . wma decoder ? supports windows media audio 9 standard. ? not supports drm files. ? supports sample rate of 8 k , 16 k , 32 k , 11 .0 25 k , 22 . 05 k , 44 .1 k and 48 khz. ? supports bit rate of 5 to 384 kbps and vbr (variable bit rate). ? supports wma-tag. ? ( up to 128 bytes can obtain for album , artist , title and genre , respectively.) 11 . aac decoder ? supports mpeg4 aac - lc (audio stream). ? based on 3gpp ts 26 . 244 and itunes. ? supports file type of m4a , mp4 and 3gpx . (x stands for any numeric value.) ? not supports drm files. ? supports sample rate of 8 k , 16 k , 32 k , 11 .025 k , 22 . 05 k , 44 .1 k , 12 k , 24 k and 48 khz. ? supports bit rate of 8 to 320kbps an d vbr (variable bit rate). ? supports aactag (itunes meta-data and 3gp meta-data). ( up to 128 bytes can obtain for album , artist , title and genre , respectively.) *for files other than those encoded by itunes , sound interruption may occur when skipping or forwarding to the next tune if streams such as gaps and video data are contained in the file. 12 . wav play ? supports wav format. ? supports sample rate of 8 k , 16 k , 32 k , 11 .025 k , 22 . 05 k , 44 .1 k , 12 k , 24 k and 48 khz. ? supports 16 - bit pcm data. ? supports riff tag. ( up to 128 bytes can obtain for album , artist , title and genre , respectively.) 13. repeat and random play ? supports repeat within the memory , repeat within folder and repeat with single tune. ? supports random play in the whole memory or the playing fol der. ? can select auto-play of next music or stop playing at the end of current music playing. 14. read from files within memory ? can read the data from specified file stored in the specified folder within the memory . downloaded from: http:///
12 / 66 bu94502cxxx series tsz02201-0v1v0e600170-1-2 ? 20 16 rohm co., ltd. all rights reserved. 2016.01.05 rev.001 www.rohm.com tsz22111 ? 15 ? 001 absolute maximum ratings (ta = 25 ) parameter symbol limits unit comment supply voltage(analog , i/o) vdd1max -0.3 to 4.5 v dvddio , davdd , avddc input voltage vin -0.3 to vdd1 + 0.3 v storage temperature range tstg - 55 to 125 c operating temperature range topr - 40 to 85 c vqfn040v6060 package power dissipation (note 1) pd1 8 00 mw bu94502cmuv sqfp-t52 package power dissipation (note 1) pd2 8 50 mw bu94502c ks2 (note 1) 74.2mm 74.2mm 1.6mm, fr4, 1-layer glass epoxy board (copper ar ea 23.69mm2) in the case of use at ta=25 or more, 8mw should be reduced per 1 . (note 2) in the case of use at ta=25 or more, 8.5mw should be reduced per 1 . operating conditions (ta = 25 ) parameter symbol limits unit comment supply voltage(analog , i/o) vdd1 3.0 to 3.6 v dvddio , davdd , avddc electrical characteristics (unless specified , ta = 25 vdd1=3. 3v , dvss=avssc= vss _pll=davss= 0v , xin_pll= 16 .9344mhz) parameter symbol limits unit condition min. typ. max. circuit current (vdd1 usb1) idd1usb1 - 51 .0 75 .0 ma when usb memory is played. (note 1) circuit current (vdd1 sd1) idd1sd1 - 26 .0 45 .0 ma when sd card is played. (note 1) h-level input voltage vih vdd1*0.7 vdd1 v (note 2) l-level input voltage v il dvss vdd1*0.3 v (note 2) h-level output voltage1 voh1 vdd1-0.4 vdd1 v ioh=-1.6ma (note 3) l-level output voltage1 vol1 0 0.4 v iol=1.6ma (note 3) l-level output voltage2 vol2 0 0.4 v iol=3.6ma (note 4) h-level output voltage3 voh3 vdd1-0.4 vd d1 v ioh=-0.6ma (note 5) l-level output voltage3 vol3 0 0.4 v iol=0.6ma (note 5) h-level output voltage4 voh4 vdd1-1.0 vdd1 v ioh=-1.6ma (note 6) l-level output voltage4 vol4 0 1.0 v iol=1.6ma (note 6) h-level input voltage vihusb vdd1*0.6 vdd1 v (note 7) l-level input voltage vilusb avssc vdd1*0.3 v (note 7) output impedance(h) zoh 22 .0 45 .0 60 .0 (note 7) output impedance(l) zol 22 .0 45 .0 60 .0 (note 7) h-level output voltage vohusb vdd1-0.5 vdd1 v (note 7) l-level output voltage volusb 0 0.3 v (note 7) rise/fall time tr / tf 11 ns output capacity 50pf (note 7) voltage of crossing point vcrs vdd1/2 v output capacity 50pf (note 7) range of differential input vdiff 0.8 2.5 v (note 7) differential input sensitivity vsens 0.2 v (note 7) pull-down resistance rpd 14 . 25 20 .0 24 .8 k (note 7)

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