1/4 rev. a structure silicon monolithic integrated circuit product name audio interface + video driver + pol + rtc lsi type BU76294GUW applications dsc, etc functions audio part ?monaural?16 bit ?codec ?monaural microphone amplifier with alc function ?monaural line amplifier ?btl output speaker amplifier (300mw@8, thd+n=10%, vdd=3.0v ) ?64-step electronic volume with alc function ?pll built-inreference clock 12mhz24mhz27mhz16fs32fs64 fs (sampling rate8khz 48khz) ?four-line serial interfa ce power on reset function ?audio if format msb first, 2s compliment adc 16bit word lengths left justified, i 2 s dac 16bit word lengths left, right justified, i 2 s video part ?sync-tip-clamp, lpf, 6db amplifier ?output coupling condenser unnecessary boot system ?step up charge pump1ch , vo ltage detect circuit4ch built- in rtc part ?32bit counter built-in ?128bit back up register built-in absolute maximum ratings ta=25 parameter symbol limits unit comment supply voltage vdd -0.34.5 v avdd, iovdd, spvdd, vvdd dvdd supply voltage dv dd -0.32.5 v dvdd unreg supply voltage unreg -0.36.0 v unreg batt supply voltage batt -0.34.5 v batt input voltage vin -0.3supply voltage +0.3 v keep each limits u pon storage temperature range tstg -50125 operating temperature range tope -2085 power dissipation *1 pd 800 *1 m w 1in the case of use at ta=25 or more, 8mw should be reduced per 1. t=1.6mm, 114.3mm x 76.2mm, , b oard base on semi, 4-layer boar d radiation resistance design is not arranged. operating conditions ta=25 parameter symbol limits unit comment supply voltage vdd 2.73.6 avdd, iovdd, spvdd, vvdd dvdd supply voltage dvdd 1.621.98 v dvdd unreg supply voltage unreg 1.75.5 v unreg batt supply voltage batt 2.03.3 v batt note please do not set spvdd lower than avdd-0.3v. note please do not surpass package permissible loss, when s pvdd is set.
2/4 rev. a electrical characteristics audio interface + video driver unless specified, ta=25avdd=sp vdd=iovdd=vvdd= 3.0vdvdd= 1.8 vbatt=3.0vfbreg=4.2v b.w.=22hz22khzfs=48khzf in=1khzxin=32.768khz parameter symbol limits unit condition min. typ. max. < current consumption > #master=0 mclk=24mhz power-down mode idds - 0.04 0.1 ma #pwap=0 rec mode/pll mode iddr - 5.8 16 ma #pwap=mdrec=mdpll=1, mclk=24mhz play mode/pll mode iddp - 5.3 16 ma #pwap=mdpb=mdsp=mdpll=1, mclk=24mhz video mode iddv - 8.2 18 ma #pwap=pwvd=1 mdpll=0 output voltage voreg 0.75avdd-0.2 0.75avdd 0.75avdd+0.2 2.2k l oad #alc1=off, mgain=48db input impedance zin 70 100 130 k input level vin -53 -51 -49 dbv dout=0dbfs l/r gain mismatch gv -1.0 0 +1.0 db dout=0dbfs distortion thd+n 43 58 - db dout=-6dbfs@1khz snr snr 59 65 - db b.w.=jis-a alc output level doalc - -7.3 - dbfs alc1=on #lgain=+5db output level vo -5.0 -5.0 -3.5 dbv din=-6dbfs distortion thd+n - 0.01 0.1 % din=-6dbfs@1khz snr 81 89 - db b.w.=jis-a #alc2=off, evr= -6db, rl=8 output level vo 0.1 2.1 4.1 dbv din=0dbfs distortion thd+n - 0.1 1.0 % din=0dbfs@1khz snr snr 75 82 - db b.w.=jis-a alc output level voalc 0.1 2.1 4.1 dbv alc2=on, evr=8db < video path vinvout> voltage gain gv +5.0 +6.0 +7.0 db vin=100khz, 1.0vpp maximum output level vom 2.2 2.6 - vpp f=10khz, thd=1% frequency characteristic 1 gf1 -1.0 0 +0.5 db f=4.5mhz/100khz frequency characteristic 2 gf2 - -20 -6 db f=18mhz/100khz back up?rtc unless specified, ta=25avdd=sp vdd=iovdd=vvdd= 3.0vdvdd= 1.8 vbatt=3.0vfbreg=4.2v b.w.=22hz22khzfs=48khzf in=1khzxin=32.768khz parameter symbol limits unit condition min. typ. max. < current consumption > unreg current consumption icc - 50 100 a unreg=4.5v, ev3=no l oad batt current consumption i - 1.0 2.0 a batt=3.0v, counter start stop oscillation voltage vout 3.6 3.9 4.2 v ev3 no load, vdet=f breg operation start voltage vstart - 1.3 1.7 v oscillation start, v det=fbreg*1 output voltage vreg 2.940 3.000 3.060 v no load change voltage vsw 3.100 3.200 3.300 v vdet=fbreg hysteresis width vshys 40 100 160 mv vdet=fbreg voltage vrst 2.65 2.75 2.85 v hilo detect, vdet=resetin uvlo voltage vlvo 1.9 2.0 2.1 v hilo detect, vdet=uvlo hysteresis width vrhys 40 100 160 mv output voltage vpmg 0.45uvlo 0.50uvlo 0.55uvlo v l input voltage 1 vil1 dvss - 0.3iovdd v act h input voltage 1 vih1 0.7iovdd - iovdd v act l input voltage 2 vil2 rtcgnd - 0.3ev3 v pwrsw0,1 h input voltage 2 vih2 0.7ev3 - ev3 v pwrsw0,1 l output voltage 1 vol1 dvss - 0.2iovdd v iout=1.0ma sout,pwrsw _state,resetout h output voltage 1 voh1 0.8iovdd - iovdd v iout=-1.0ma sout,pwr sw_state l output voltage 2 vol2 rtcgnd - 0.1ev3 v iout=0.5ma pwrctrl0,1 h output voltage 2 voh2 0.9ev3 - ev3 v iout=-0.5ma pwrctrl0,1 *1 the operation of d c-dc start voltage.
3/4 rev. a block diagram figure1. block diagram (note)please the capacitors for avdd ,bias ,lnf ,ev3 pins close to each. please the capacitors of xtal for xin ,xout pins close to each. pin functional descriptions pin name function pin name function avdd analog power supply rtcgnd gnd for rtc avss analog ground resetin reset voltage detective output bias bias uvlo uvlo voltage detective input mreg regulator for mic resetout reset output micin mic input act act input lnf mic nf input pwrsw0 power sw0 input lineout line output pwrsw1 power sw1 input evrout evr output pwrctrl0 power control0 output spin sp input pwrctrl power control1 output spneg sp negative output pmg_vbat_da voltage monitor output sppos sp positive output pwrsw_state power sw output spvdd sp power supply dvdd digital power supply spvss sp ground iovdd digital io power supply vvdd video driver power supply fclk codec frame clock input vvss video driver ground bclk codec bit clock input vin video driver input dain codec da serial data input vout video driver output adout codec da serial data output unreg unreg voltage input clk master clock input cpout step up pulse output dvss digital gnd fbreg step up voltage output sclk serial clock input ev3 regulator output csb serial chip select input batt back up power supply sdata serial data input xin crystal oscillation input sout serial data output xout crystal oscillation ou tput test test terminal vout vin vvdd vvss lpf clamp dvdd iovdd serial i/f sclk csb sdata sout fclk bclk dain adout osc det audio i/f div rtc 128bit register unreg cpout + - osc fbreg ev3 reg det pwrsw0 pwrsw1 uvlo por adjust ont ref test dl lo:100ms xin xout batt ev3 avdd avss micin bias bias mreg mreg lnf mic amp alc lpf adc ?adc 16bit dac ?dac 16bit lineout evr evrout spin - spvdd spvss spneg sppos - logic batt + - dl + - resetout resetin act rtcgnd mclk delay mm pll adjust noise cancel dl pwrctrl0 pwrctrl1 pwrsw_state rwrctl rwrctl pmg_vbat_da dvss
4/4 rev. a pin assignment(bottom view)?external dimension bottom view figure 2. pin assignment(bottom view) caution about absolute maximum rating when the absolute maximum rating such as the applied voltage an d the ranges of the operating temperature is exceeded, lsi migh t be destroyed. please apply neither voltage nor the temperature that exceeds t he absolute maximum rating. please execute physical measures for safety such as fuse when i t is thought to exceed the absolute maximum rating, and examine it so that the condition to exceed the absolute maximum rating is not appl ied to lsi. about gnd voltage in any state of operation must be the lowest voltage about the voltage of the terminal gnd. please actually confirm the voltag e of each terminal is not a voltage that is lower than the terminal gnd including excessive phenomenon. 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. 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 destro yed when mounting by mistake and energizing. moreover, lsi might be destroyed whe n short-circuited by entering of the foreign substances between the terminal and gnd, between terminals, between the terminal and the power supply of lsi. about operation in strong electromagnetic field use in strong electromagnetic field has the possibility of ma lfunctioning and evaluate it enough, please. please note not to be beyond the package permissible range, whe n spvdd is set. 76294 lot no. figure 3. external dimension (unit) pkgvbga048w040 drawing no.ex873-6001 g f e d c a b 1 2 3 4 5 6 7 rtcgnd xin xout vvdd resetout sout dvdd pwrsw1 batt vvss vout act pwrsw_state dain pwrctrl0 pwrsw0 test vin dvss adout mclk ev3 resetin pwrctrl1 pmg_vbat_da sdata fclk bclk uvlo unreg fbreg spin lnf sclk iovdd sppos spvss lineout bias avdd csb cpout spvdd spneg evrout mreg micin avss
r1120 a www.rohm.com ? 2011 rohm co., ltd. all rights reserved. notice rohm customer support system http://www.rohm.com/contact/ thank you for your accessing to rohm product informations. more detail product informations and catalogs are available, please contact us. notes no copying or reproduction of this document, in part or in whole, is permitted without the consent of rohm co.,ltd. the content specied herein is subject to change for improvement without notice. the content specied 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 specications, 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 specied 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 specied herein is intended only to show the typical functions of and examples of application circuits for the produc ts. 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 specied in this document are intended to be used with general-use electronic equipment or devices (such as audio visual equipment, ofce-automation equipment, commu- nication devices, electronic appliances and amusement devices). the products specied 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, re or any other damage caused in the event of the failure of any product, such as derating, redundancy, re 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 specied 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.
|
