PCB Board Yekugadzira Mutauriri weBluetooth

Highleap Electronics inogadzira PCB board yemagadzirirwo emaspika eBluetooth — inopa kuvaka kwakakwana kubva kuPCB isina chinhu kuburikidza nemayuniti akaunganidzwa uye akaedzwa kune vagadziri vehardware yepasi rose. Isu tinoshanda nekugadzira, Bluetooth SoC sourcing, SMT assembly, uye testing yakasimba yeaudio pasi pedenga rimwe chete kuti tive nechokwadi chekuti chigadzirwa chako chinosangana nezvinodiwa zvemusika wepasi rose.

Peji rino rinotaura nezvezvatinogadzira, zvinoita kuti PCB board yemapurogiramu eBluetooth speaker akasiyana neakajairika emagetsi, uye zvatinoedza tisati tasvika pasi rose. Kuti uwane mitemo yekuisa zvikamu, RF layout, uye layer stackup guide, ona gwara redu rekugadzira PCB reBluetooth Speaker.

1. Mabhodhi ePCB eSipika dzeBluetooth dzatinovaka

Tinogadzira PCB board yezvigadzirwa zveBluetooth speaker muzvikamu zvishanu zvikuru. Rimwe nerimwe rine specifications dzakasiyana dzebhodhi zvichienderana nesimba respeaker, saizi yenzvimbo yaanopinda, uye zvinodiwa nemusika waanoda.

Magadzirirwo asiri emhando idzi haasi dambudziko. Titumirei mafaira enyu eGerber neBOM uye tichasimbisa kana tichigona kuagadzira. Mazhinji emagadzirirwo ekutanga anotangira pakuongorora kweDFM kusvika pakugadzirwa kweprototype mukati memavhiki maviri, zvichitsigira mapoka ekugadzira agile pasi rose.

Kune magadzirirwo emadhiraivha akawanda uye crossover anopfuura Bluetooth unit imwe chete, peji redu rekugadzira PCB remaspika rinosanganisira mabhodhi eamplifier, mabhodhi eDSP, uye kuvaka kwakazara kwemasisitimu eanzwi.

2. Chii Chinoita Kuti Mabhodhi Aya Asiyane Nekugadzirwa Kwawo?

Bhodhi rePCB reBluetooth speaker harisi circuit yemagetsi inoshandiswa nevatengi. Rinotakura nharaunda nhatu dzisingaenderane nemagetsi pabhodhi rimwe chete — uye nzira iyo nharaunda idzodzo dzinoshanda nayo panguva yekugadzira nekugadzira inogadzira nzira dzekukundikana dzisingawanikwe pamabhodhi edhijitari akajairwa.

Nzvimbo yeRF uye nzvimbo yeanalog audio inosvibisa ma "cross-contamine". Bluetooth SoC inochinja pa2.4 GHz. Class D amplifier inochinja pa300–500 kHz. Kana ikaiswa pedyo zvakanyanya, ma "switching harmonics" e "amplifier" anoderedza kugadzikana kweSoC - izvo zvinoonekwa seBluetooth range yakaderera, kwete se "assembly defect". Ongororo yeDFM inobata izvi isati yagadzirwa. Muunganidzi asina DFM ability anotumira mabhodhi anopasa bvunzo inoshanda asi anokundikana kupfuura mamita mashanu, zvichiisa mukurumbira webrand yako panjodzi mumisika yemuno.

Zvikamu zveBluetooth SoC zvinonyanya kutevedzera nguva yekutumira zvinhu. Qualcomm (QCC3040, CSR8635), Realtek (RTL8763E), uye Nordic Semiconductor (nRF52832) zvese zvine nguva yekutumira zvinhu inokurumidza kuchinja zvichienderana nezvinodiwa pasi rose. Mutengesi anowana SoC yako anokuudza nguva yekutumira zvinhu yakasimbiswa usati waisa odha. Mutengesi anongounganidza mabhodhi anodzosera njodzi yekutumira zvinhu kwauri.

Kuchinja-chinja kweBluetooth speaker board hakugone kuve kwakajairika. Bluetooth SoC's exposed thermal pad neClass D amplifier's PowerPAD zvine ma thermal masses akasiyana uye tembiricha shoma dze solder dzakasiyana. Kuchinja-chinja kweBluetooth imwe chete yakagadzirirwa zvikamu zvisingashande kuchadziisa kupisa kweSoC's fine-pitch pads - kugadzira mabhodhi uko Bluetooth inobatana asi imwe audio channel isipo kana kuti inopindirana.

Izvi ndizvo zvinoita kuti kugadzira bhodhi rePCB remhando yepamusoro remapurogiramu eBluetooth speaker kubatsire nechikwata chimwe chete chekugadzira chinodzora kugadzirwa, kuwanikwa kwezvikamu zvepasi rose, uye kuunganidzwa pamwe chete.

3. Zvinodiwa pakugadzira Bluetooth Audio

Matambudziko ekubatanidza maPCB board emaspika eBluetooth anosanganisira kusanganiswa kweBluetooth SoC, Class D amplifier, uye mabhatiri management circuit inogovana bhodhi rimwe chete.

Kuvharwa kwepadhi rakavhurika reBluetooth SoC: 70–80% zvishoma. Bluetooth SoC yakaputirwa neQFN ine padhi guru rakavhurika rekupisa pasi payo. Kuvharwa kwepadhi pasi pe70% kunoita kuti pave nemhepo inowedzera kuramba kupisa uye inokwidza tembiricha yekushanda - SoC inosvika padanho rayo rekupisa panguva yekuridza odhiyo kwenguva refu nevhoriyamu yakakwira. Tinosimbisa kuvharwa ne3D SPI bhodhi rega rega risati rapinda muovheni.

Mabhiriji ekubatanidza maRF: bvunzo yekushanda inokundikana. Bhiriji rekubatanidza maRF riri pakati pemapedhi maviri ari pedyo muRF matching network rinobvisa antenna impedance kubva pa50Ω. Bhodhi rinopasa bvunzo ye power-on, asi Bluetooth inodonha kubva pamamita gumi kusvika pamamita matatu kusvika mana. Chirongwa chedu cheAOI chinotarisisa maRF matching network pads kuti aone mabhiriji, zvichiita kuti vashandisi vepasi rese vabatane zvakanaka.

Kurongeka kwefirita inobuda yeClass D. Mafirita maviri anobuda ari pabhodhi reamplifier yeClass D anofanira kuiswa akatarisana. Kuiswa pamwe chete kunochinja simba kudzokera munzira yechiratidzo chenzwi, zvichikwidza ruzha rwekubuda. Inofanira kusimbiswa nekutarisa kutenderera kweAOI.

Reflow profile: 245°C zvishoma pane muviri weSoC kwemasekonzi 30–60. Tinoisa profile nethermocouple zvakananga paSoC package. Kupisa pasi pevhu kunokonzera kutadza kushanda kweaudio: Bluetooth pairing chaiyo asi odhiyo inobuda pachiteshi chimwe chete chete.

Kune maitikiro ekugadzirisa anodzora matanho ekubuda kweClass D, chishandiso chedu chekugadzira ma amplifier eaudio chinosanganisira izvi zvizere.

4. Kuongororwa kweAudio neRF kweKutevedzera Mutemo Wenyika Dzese

Kuongororwa kwePCB kwakajairika hakuna kukwana pabhodhi rePCB rezvishandiso zveBluetooth speaker. Mabhodhi aya anoda bvunzo dzechigadzirwa dzinosimbisa chikamu cheRF, chikamu cheaudio, uye chikamu chekutonga simba zvese zvinoshanda zvinoenderana nezvinodiwa, zvichiona kuti zvinoenderana neFCC, CE, nedzimwe mitemo yepasi rose.

Kuongororwa kwenzvimbo uye bvunzo dzenzwi dzinoitwa pamagetsi maviri dzinoitwa payuniti yega yega. Miedzo yeTHD, frequency response, uye SNR inoitiswa pazvinyorwa zvekutanga uye inowanikwa kana yakumbirwa kuti ishandiswe. Kune masipika epamba akangwara anosanganisa Bluetooth neWi-Fi, bvunzo yekubatana inodiwa uye tinoiwedzera kuti isanganise 5 GHz Wi-Fi inoshanda panguva imwe chete.

5. Nguva Dzekutungamira Dzepasi Pose, Mitengo, uye Maitiro Ekuodha

Tinoshanda pamwe chete nevanopa zvinhu zvekufambisa zvinhu pasi rose (DHL, FedEx, UPS) kuti tive nechokwadi chekuti zvinhu zvinotumirwa nekukurumidza pasi rose kuNorth America, Europe, nedzimwe nzvimbo.

Huwandu hushoma hweodha: Hapana hushoma hwekugadzira PCB isina chinhu. Kugadzira kunotanga pa5 mayuniti ekugadzira ma prototype. Mutengo wekugadzira unotanga pa50 mayuniti.

Chii chinoita kuti bhodhi rePCB rive nemutengo: Kuwanda kwezvikamu; kupedzisa kwenzvimbo (ENIG inodiwa pamapakeji eQFN SoC); mutengo weBluetooth SoC unit zvichienderana nehuwandu hwako; uye mwero wekuyedza.

Zvekutitumira: Mafaira eGerber, BOM ine nhamba dzezvikamu zvemugadziri, faira repakati pekusarudza nekuisa, uye huwandu hwaunoda uye nzvimbo yekutumira. Tinodzosera mutengo wakadzama mukati memaawa makumi maviri nemana ekugadzira kwakajairika. Kune zvinodiwa nePCB yemagetsi evatengi , kugona kwedu kunofukidza huwandu hwese hwezvigadzirwa zveIoT nemidziyo yemumba yakangwara.

Kuti uwane ruzivo rwakadzama pamusoro pemitemo yekugadzira bhodhi risina chinhu, ona peji redu rekugadzira PCB . Kuti uwane kugona kwekubatanidza muzvikamu zvese zvezvigadzirwa, ona masevhisi edu ePCB assembly.

Kumbira PCB Board yeBluetooth Speaker Quote

Mibvunzo Inonyanya Kubvunzwa

Unogona kugadzira bhodhi rePCB reBluetooth speaker kubva pamafaira angu eGerber here?

Ehe. Tumira mafaira ako eGerber, BOM, pick-and-place centroid file, uye stackup specification. Tinoita ongororo yeDFM mukati memaawa makumi maviri nemana kusvika makumi mana nemasere tichitarisa kutevedzera antenna keepout zone, SoC disacoupling placement, uye RF matching network pad geometry — matambudziko chaiwo kumaBluetooth boards ayo ma generic DFM tools asingatariswe.

Munowana Bluetooth SoC yekuvaka kwangu pasi rose here?

Ehe, sechikamu chebasa redu rekuchinjana. Tinowana Qualcomm, Realtek, Nordic Semiconductor, nedzimwe mhando dzeBluetooth SoC kubva kune vanogovera vane mvumo pasi rose. Tinotarisa kuwanikwa kwefoni uye tinosimbisa nguva yenyu yekutumira foni musati maisa odha.

Ndeipi huwandu hushoma hweodha yePCB board yekubatanidza speaker yeBluetooth?

Hapana chiyero chidiki chekugadzira PCB isina chinhu. Maodha ekugadzira anotangira pa5 mayunitsi ekugadzira ma prototype. Kana uchida bhodhi rimwe chete rekugadzira nekuyedza, taura nesu — isu tinogadzirisa kuvaka kamwe chete nemutengo we prototype nekutumira pasi rese. Mitengo yekugadzira inotangira pa50 mayunitsi.

Ungasimbisa sei kuti bhodhi rinoshanda risati ratumirwa?

Bhodhi rega rega rakaungana rinopinda mubvunzo inoshanda ye-power-on: kusimbiswa kweBluetooth pairing, odhiyo inobuda pamatanho ese ari maviri, uye kutanga kwekuchaja bhatiri. Maodha ekutanga anosanganisirawo kuchengetedzwa kweBluetooth range pamamita masere. Chero bhodhi rinokundikana bvunzo haritumirwe kusvika rakundikana raonekwa, ragadziriswa, uye raongororwazve.

Unogona here kugadzirisa prototype uye kugadzirwa kweprototype yedhizaini imwe chete?

Ehe. Ongororo imwecheteyo yeDFM, sosi imwecheteyo yeBluetooth SoC, chimiro chimwe chete chekudzokorora chakasimbiswa nebhodhi rako, uye maitiro akafanana ekuyedza odhiyo anoenderera mberi kubva pakugadzirwa kwechinyorwa chekutanga kusvika pakugadzirwa kwevhoriyamu. Kana prototype yako yapasa bvunzo, zvinodiwa zvekugadzira zvinenge zvatonyorwa.