TITAS5404－Q126W汽車四路D類放大器參考設計

1、ti tas5404 - qi 26w汽車四路d類放大器參考設計時間：2016-02-29 09:36:01 作者：ti 來源：中電網ti公司的tas5404-q1是用于汽車音響主機的四路d類音頻放器,四路模擬輸入，四路btl 輸出，每路能從14.4v電源中向4歐姆負載連續(xù)提供26w輸出或向2歐姆負載連續(xù)提供45w 輸出,thd+n小于1%,75db psrr.每路增益為12 db, 20 db, 26 db, 32 db.本文介紹了 tas5404-q1主要特性,框圖和主要應用電路及其材料清單，汽車四路d類放人器參考設計 tida-00573主要特性，框圖，電路圖，材料清單和汽車咅響主機框圖

2、與主要指標.the tas5404q1 device is a four-channel class-d audio amplifier designed for use in automotive head units. the tas5404-q1 device provides four channels at 20 w continuously into 4 q at less than 1% thd+n from a 14.4-vdc supply when used with the application circuit. the input is con figured as

3、an an alog sin gle-e nded interface the patented pwm topology of the device provides dramatic improvements in efficiency and audio performanee over traditional linear amplifier solutions. the improvement in efficiency and audio performanee reduces the power dissipated by the amplifier by a factor of

4、 ten un der typical music playback conditions. the device in corporates all the required functions required by the oem applicatio n. the built-in load diag no stic functi ons for detecting and diagnosing disconnected speakers help reduce test time during the manufacturing processtas5404-q1主要特性：tas54

5、04-q1 一 single-ended inputfour-channel class-d power amplifierfour a nalog in puts, four btl power outputstypical output power at 10% thd+n26 w/chlnto4qat14.4v45 w/chlnto 2 q at 14.4 vchannels can be paralleled (pbtl) for high- current applicationsthd+n < 0.02%, 1 kh乙 1 w into 4 qpatented pop-a n

6、dclickreducti on tech no logysoft muting with gain ramp controlcommon-mode rampingpatented am interferenee avoidaneepatented cycle-by-cycle current limit75db psrrfour-address l2c serial in terface for deviceconfiguration and controlchannel gains: 12 db, 20 db, 26 db, 32 dbload diagnostic functions:

7、output open and shorted load output-to-power and output-to-ground shorts patented tweeter detectionprotect!on and monitoring functions:short-circuit protectionload-dump protection to 50 vfortuitous open-ground and open-power tolerantpatented output dc level detection while music playing overtemperat

8、ure protectionovervoltage and undervoltage conditionsclip detection64-pin qfp (phd) power package with heat slug updesigned for automotive emc requirementsqualified according to aec-q100is09000:2002 ts16949-certified-40°c to 105°c ambient temperature range圖 1.tas5404-q1 框圖圖2.tas5404-q1典型應用

9、電路圖圖2tas5404-q1典型應用電路的材料清單:c3z c3s c47. ceo4alm. 1»-vtae<.88 c7.c«410 mmc©.c1o. 3 c27.cjieip* t 10%mosx7wg.cter. 50-vc45122 "0%0m5film. 15-varog 3uo4*. 0yp35sc14 c23. c3x c4244t0r* a 10*mosx7r momc5o*vouuec11.c15. cx. gc» 03 cm. c43470 pf 叭oeo)x7ryr 50-vcmos21gmo!x?rm

10、7;>oeor. 2s-vc4122w pf t 10*oeoix7r cerrnc90>vc3ioo«9|i t 10moeo>x7pc”*. 25-vc1.c224.7 pf t 10%12«x? ctrxnc moccorcqc17.c21 g cm. cmc4qc440 47 e 10%oeoix7r cer>mc cjaoeor 35-voutput em： fmahqch1onft 10%oeo$x7rdoctor. 2s-vli1104120*13.® nr/nmmpower supplyu n u. l5. l6 lt. l

11、o12 mm !4mm2t 1umosre»tor> 0 12s-wr3.r4.r5.恥. ne.rio.9.6mm0.12-woucouer7120010 t 1%mosfu&sv 0.12s-w汽車四路d類放大器參考設計tida-00573the tida-00573 ref ere nee design provides a class d based amplifier soluti on that allows it to be evaluated in the form factor of a typical class ab amplifier. the

12、design is optimized to mitigate thermals associated with audio amplifiers and to minimize switching noises associated with class d amplifiers this design is comprised of two parts. the 1st highlights the audio amplifier module while the 2nd highlights the circuitry needed toin corporate it into a ba

13、se board. the pair of boards allows stan d-alone performance testing of the design.汽車四路d類放大器參考設計tida-00573主要特性：able to withstand load-dump conditionssize/space optimized designcispr-25 tested emiable to withstand start/stop operation down to 5.6v圖3汽車四路d類放大器參考設計tida-00573外形圖圖4汽車四路d類放大器參考設計tida-00573框

14、圖圖5集成了 tida-00573的汽車音響主機框圖 汽車音響系統(tǒng)主要指標：匡f傲壹電予avaoo圖6子板3d外形圖匕qe' i g|e«1ml!< ib cll i-an:xi ex as lnsn<umtn!s cm« 圖7.主板3d外形圖圖8參考設計tida-00573電路圖(1)圖9.參考設計tida-00573電路圖(2)圖10參考設計tida-00573電路圖(3)5.613voperationor 如 ic filterpvoo 5.618vtl760m1m113.3v ido3.3vpc(gui)4 channel en analog o

15、ut out圖"參考設計tida-00573電路圖(4)圖13.參考設計tida-00573電路圖(6)參考設計tida-00573材料清單：001t1da-oo573 rev e2 bhi of materialstexas y instrumentstidaoo573usb rev e3 bill olexas nstrumentsnjrevmm oc(to. y1qa4«tm«tf喊vamstm.f<*mm cqg2£2ccil.cugw«20tumihim<tna>f0<otcuw. gto _ 4 dk 0k&

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