Dhizaini uye Kugadzira PCB yeDigital TV Receiver

PCB yedhijitari yekugamuchira TV inobatanidza chinongedzo chekutepfenyura terevhizheni netuner, demodulation, digital processing uye audio/video output. Magadzirirwo chaiwo eRF anoenderana nehurongwa hwekutepfenyura hwakanangana nemusika, saka package yekugadzira inofanira kuona standard chaiyo, tuner uye demodulator pane kubata ese ma digital TV receivers seDVB-T2 kana sedhizaini imwe chete yehardware. Highleap Electronics inogadzira ma PCB nema PCBA ekugamuchira anoburitswa nevatengi ane RF, high-speed digital, connector uye functional-test controls zvinoenderana nedhizaini.

Kugadzira PCB yeDigital TV Receiver yeOEM Projects

DVB-T2 sisitimu yekutumira terevhizheni yedhijitari yechizvarwa chechipiri, nepo mimwe misika ichishandisa mimwe mitemo yepasi rose. Terevhizheni yetambo nesatellite inoshandisawo nzira dzakasiyana dzeRF. Saka chinyorwa chekugamuchira terevhizheni yedhijitari chinofanira kusiyanisa basa rekugamuchira terevhizheni kubva kune yakatarwa.

Zvinyorwa zvepamutemo zveDVB zvinotsanangura DVB-T2 senzira yekutumira terevhizheni yepasirese, uye kuiswa kwayo parutivi rwemugamuchiri kwakavhurika nemaune kune mhinduro dzakasiyana dzekushandisa. Ndosaka zvirevo zvekugadzira zvichifanira kuratidza dhizaini chaiyo yemutengi yekutumira/yedhimodhi pachinzvimbo chekufungidzira topology imwe chete yePCB.

Nyika Hazvirevi DVB-T2 Kwese Kwese

DVB-T2 imwe yenzira dzakakosha dzeterevhizheni yedhijitari yepasi rose, asi izwi rekuti "digital TV receiver" rakakura. Nyika dzakasiyana nemisika inoshandisa masisitimu akasiyana ekutumira. Ndosaka mazwi akachengeteka epeji yechigadzirwa ari ekutsanangura mabhuroko akajairika ekugamuchira wobva wataura kuti kusarudzwa kwetuner nedemodulator kunotevera musika wakatarwa uye mwero.

Sangano reDVB rinotsanangura DVB-T2 senzira yekutumira data yepasirese yechipiri ine mashandisirwo ekugamuchira akasiiwa akavhurika kune mhinduro dzakasiyana dzekushandisa. Icho chiyeuchidzo chinobatsira chekuti mwero mumwe chete hautungamirire dhizaini imwe chete yePCB kana chipset.

Dhizaini yePCB yeRF Input, Tuner, Demodulator uye Receiver

Chinobatanidza RF input, tuner uye demodulator zvinoumba kumberi kwemugamuchiri. Nzvimbo yazvo, kudzivirira, kudzika uye routing zvinogona kukanganisa nharaunda yechiratidzo chebhodhi. PCB yekugadzira inofanira kuchengetedza RF geometry yakaburitswa uye seti yezvikamu, kunyanya apo dhizaini yacho inosanganisira matrace anodzorwa ne impedance kana network yakatsanangurwa yeRF matching.

Highleap inotsigira kugadzirwa kweRF PCB uye kuyedzwa kweRF PCB kana zvinodiwa nemutengi zvichidikanwa.

Kusarudzwa kweTuner Chisarudzo cheMusika neMagadzirirwo

Tuner haisi chikamu cheRF chinongotsiviwa chete. Frequency range yayo inotsigirwa, nzira yekudzora, IF/baseband interface uye hukama ne demodulator zvinogona kusiyana zvichienderana nekugadzirwa kwechigadzirwa. Ndokusaka BOM, schematic uye software configuration zvichifanira kuongororwa pamwe chete pakusarudza kana kubvumidza chero chikamu chereceiver-side.

RF Connector uye Kuongororwa kweShielding

Joint yekubatanidza coaxial isina kunaka inogona kuburitsa zviratidzo zvinoita sekunge RF haishande zvakanaka. Saka, kuongororwa kwekuona, kukodzera kwemuchina uye bvunzo yemagetsi zvinofanirwa kupatsanurwa. Kana dhizaini yacho iine nhoo yesimbi kana kani, maitiro ekubatanidza anofanira kuratidza kuti nhoo yakaiswa zvichienderana nedhirowa yemuchina yakaburitswa.

Kugadziriswa kweDigital, Kubuda kweVhidhiyo uye Kubatana kweZvigadzirwa

Cheni yechiratidzo chekugamuchira haigumiri pa tuner. Mushure me demodulation, hardware inogona kubata transport-stream processing, conditional access functions kana zvichibvira, decoding uye output formatting. HDMI, AV, USB kana network functions dzinogona kubatanidza receiver kunyika yekunze.

Usafunge kuti une Kodeki Imwe chete kana kuti Seti Imwe Yekubatanidza

Mapuratifomu emazuva ano ekugamuchira anogona kutsigira macodecs akasiyana, ma interfaces uye maficha ebasa zvichienderana neSoC uye mamiriro ezvigadzirwa zvedunhu. Chinhu chekugadzira hachifanirwe kushandura chikamu chechigadzirwa kuita bhiri rezvinhu zvese. Zvakachengeteka kutsanangura interface sechinoenderana nedhizaini wobva watsanangura zvinodiwa chaizvo mukuyedza mubumbiro remutengi.

Kurongeka kweRF, Simba uye Kuongorora PCBA

Chigadziko chemagetsi chinokwana chinogona kuisa chikamu cheRF pedyo ne processor, memory uye switching regulators. Saka, marongerwo akatenderwa anogona kushandisa dziviriro, kupatsanura uye nzira dzekudzoka dzakanyatsotarisirwa. Fekitori inofanira kuchengetedza dhizaini uye kudzivirira kufambisa zvikamu zveRF kuti zvive nyore panguva yekuunganidza.

Zvishandiso zveHighleap zveRF shielding uye EMI/EMS/EMC PCB design zvine chekuita nezvinodiwa kana zvakataurwa nezvechigadzirwa zvichisanganisira zvinhu izvozvo.

Njanji dzeMagetsi uye Maitiro Ekutanga

Tuner, demodulator, processor, memory uye output interfaces zvinogona kuda ma voltage domains akawanda. Kuedza kunoshanda kunofanira kusimbisa kutanga uye mamiriro ekushanda ari kushanda pane kutarisa njanji imwe chete. Kana mutengi akapa current kana voltage limit, fixture inogona kuinyora pasi pemamiriro ezvinhu anodzokororwa.

Kuongorora kweReceiver PCBA

BOM inogona kusanganisira maIC anopinza zvakanaka, zvikamu zveRF, zvinobatanidza uye mapakeji eBGA. AOI inobatsira kune akawanda majoini eSMT anoonekwa, nepo X-ray inogona kukodzera majoini akavanzwa. Kubatanidza RF kunodawo kutariswa nekuti kupinda mukati kunogona kutaridzika sekukundikana kwe tuner kana demodulator.

Highleap inopa AOI , BGA assembly uye bvunzo dzekushanda zvichienderana nehuwandu hweprojekiti.

Midziyo yeDigital TV Receiver Inoshanda Yekuongorora uye Yekunongedzera

1. Simba-kumusoro: simbisa kutanga uye gadziridzo yefirmware inotarisirwa.
2. Kupinda kweRF: batanidza chiratidzo chebvunzo chakatenderwa kana chiratidzo chebvunzo.
3. Kuwana: simbisai kiyi ye tuner ne demodulator zvichienderana nenzira yemutengi.
4. Video: simbisai zvinodiwa pakuratidzwa.
5. Audio: simbisa nzira yekuteerera yaunoda uye nzira yekubuda nayo.
6. Mushandisi wemushandisi: tarisa remote, mabhatani kana ma control epamberi.
7. Service features: edza maitiro eUSB, Ethernet kana software-update chete kana uri chikamu cheSKU.

Nei Chitubu Chebvunzo Chichifanira Kutsanangurwa

"Edza mugamuchiri" haisi murairo wakakwana wekugadzira. Mutengi anofanira kuziva kwakabva chiratidzo kana nzira yekuyedza yakatenderwa, mamiriro echiteshi, zvinotarisirwa kubuda uye miganhu yekupasa/kukundikana. Kune masisitimu epasirese, mwero wekutepfenyura wakakodzera uye nzira yekuyedza inokosha; DVB-T2 pachayo inotsanangura sisitimu yekutumira uku ichisiya sarudzo dzekushandisa mugamuchiri dzakavhurika. Izvi zvinosimbisa kudiwa kwetsananguro dzekuyedza dzakanangana nevatengi.

Mitsetse Yekuyedza uye Masosi eRF Anofanira Kuenderana Nekuburitswa

Mugamuchiri haagone kuve akakodzera zvine musoro neRF source isina kutsanangurwa. Kugadziriswa kwekuyedza kunofanirwa kuratidza standard, channel kana test signal, tarisiro yekuwana uye kubuda. Kana mutengi akapa reference stream, faira iroro kana signal inofanira kudzorwa neversion kuitira kuti gare gare ma lots ashandise imwe chete acceptance base.

Midziyo Yekutarisa Inoderedza Kukundikana Kwenhema

Nzvimbo yekugadzira inofanira kushandisa michina yekutarisa inozivikanwa kutsigira chiratidzo uye kubuda kwemugamuchiri. Kana chiratidzo, RF source kana network environment isingaenderane, PCB yakanaka inogona kunyorwa seyakundikana. Kana mugamuchiri akanyanya kuenderana nemusika, zvinonyanya kukosha kutsanangura nharaunda yekuedza sechikamu chepakeji yekugadzira.

Mitemo yeBroadcast, MaRegional Variants uye PCB Sourcing

Makombiyuta emagetsi eTV edhijitari ari mumhuri yakakura inosanganisira mabhodhi ekugamuchira epasi rose, mabhodhi ekugamuchira cable, mabhodhi ekugamuchira satellite, mamodule etuner, mabhodhi edemodulator, ma-conditional-access interfaces uye mabhodhi makuru emultimedia decoder. Aya ndiwo mapoka ehardware ane hukama, asi haachinjiki. Zvinodiwa zveRF front end uye demodulation zvinoenderana nesystem yekutumira uye musika waunoda.

Highleap Electronics inogona kugadzira nekubatanidza maPCB ekugamuchira akagadzirwa nevatengi muzvivakwa zvakasiyana. Haishande sevhisi yekutepfenyura uye haitengesi receiver ine zita nekuti ndiyo inogadzira bhodhi.

Misika yeNhepfenyuro yeDunhu uye Kutsvaga PCB

Musika wakanangana nawo unofanira kutaurwa pakutanga kwepurojekiti yekugamuchira. Dhizaini yeUS inogona kunanga zvinodiwa nemhuri yeATSC, nepo zvigadzirwa zvepasi rose zveEurope zvichigona kunanga masisitimu emhuri yeDVB uye mamwe matunhu anoshandisa zviyero zvawo zvekutepfenyura. Canada, Japan, South Korea neAustralia vanewo nhoroondo yavo yemusika uye marongero ezvigadzirwa. Saka, mazwi akakosha emunharaunda akadai seUS digital TV receiver PCB kana European digital TV receiver board ane revo chete kana chinyorwa chikatsanangura mamiriro echigadzirwa anoenderana.

Pakutsvaga kweOEM, mazwi akafanana akadai sedigital TV tuner PCB , terrestrial receiver mainboard , set-top box PCB assembly , TV demodulator board uye broadcast receiver PCBA inogona kubata zvinodiwa zveinjiniya zviri pedyo pasina kumanikidza zviyero zvisina hukama muchigadzirwa chimwe chete.

Varidzi veDunhu Vanogona Kugovana Hardware Asi Kwete Software

PCB yekugamuchira inogona kufanana mumisika yese asi sarudzo ye tuner, marongero esoftware, tafura yechiteshi kana marongero ezvinobuda zvichisiyana. Magwaro ekugadzira anofanira kuratidza kuti misiyano ipi iri muhardware, ndeipi iri firmware uye ndeipi inongoyedzwa chete. Izvi zvinodzivirira kubata shanduko yega yega yedunhu sePCB itsva kana, zvakatoipa, kutumira bhodhi rakajairika rine marongero asiri iwo.

Kugadzirwa kweMuchina weKugamuchira Zvinhu Pasi Pano Kwakanangana Nemusika

Chinogamuchira chakagadzirirwa imwe terrestrial standard chingada tuner yakasiyana, demodulator, watch arrangement kana software configuration kubva kune imwe market. Maitiro ekugadzira PCB anogona kuramba akafanana, asi component ne firmware release hazvichinjiki. Ichi ndicho chimwe chikonzero nei kutenga kuchifanira kupa musika wakatarwa uye broadcast standard pamwe chete nedata reGerber neBOM.

Data rekugadzira PCB remugamuchiri uye Kudzora Kugadzira

Kuburitswa kwakazara kunofanirwa kunge kuine data rekugadzira, ruzivo rwekurongedza kana kupindira kana zvichidikanwa, BOM, pick-and-place, assembly drawing, RF component requirements, firmware, mechanical connector information uye test documentation. Kana chigadzirwa chiine regional variants, variant matrix inofanira kuratidza tuner, software uye populated options paSKU imwe neimwe.

Kugadzira Kunofanira Kuchengetedza Magadzirirwo Emutengi Wekugamuchira

Highleap Electronics inogona kutsigira kugadzirwa kwePCB yemugamuchiri uye PCBA uku ichichengetedza RF yakatenderwa, dhizaini uye magadzirirwo esoftware ari pasi pekutonga kwekugadzirisa. Izvi zvinopa OEM mukana wekugadzira unodzokororwa pasina kunyepedzera kuti mugamuchiri wese weTV yedhijitari anoshandisa mwero wakafanana wekutepfenyura kana dhizaini yehardware.

Matafura eChannel uye Kugadziriswa kweSoftware iData reChigadzirwa

Software yekugamuchira inogona kuva nemarongero emunharaunda, marongero echiteshi, menyu yebasa kana imwe data chaiyo yechigadzirwa. Mutsetse wePCB unofanirwa kungoisa marongero akatenderwa uye unofanirwa kunyora revision inoshandiswa pakuvaka kwega kwega. Marongero iwayo haafanire kuvhiringidzwa nezvinodiwa zveDVB zvepasi rose.

Kuedzwa Kwakavakirwa Pamuenzaniso Zvichienzaniswa ne100%

Mutengi anogona kusarudza mazinga akasiyana eRF kana kuyedzwa kwesystem zvichienderana nehuwandu uye njodzi. Kuunganidzwa kwePCB kunogona kugamuchira 100 muzana kuongororwa kwemagetsi uye mashandiro emagetsi ukuwo kuyerwa kweRF kunodhura kuchiitwa pazvinhu zvekutanga kana mayuniti akasarudzwa nenhamba. Hurongwa hwekupedzisira hunofanirwa kubvumirana usati wagadzirwa uye haufanirwe kutaurwa nezvechikamu chechigadzirwa.