Umklamo kanye Nokukhiqiza kwe-PCB Yokwamukela I-Satellite TV

I-PCB yesamukeli se-TV yesathelayithi ine-front end ehlukile ye-RF ngoba ibhodi ithola izimpawu ezihambisana ne-antenna yesathelayithi kanye nohlelo lwe-LNB ngaphambi kokulungisa, ukususa i-demodulation kanye nokucutshungulwa komsindo/ividiyo. I-Highleap Electronics ikhiqiza ama-PCB nama-PCBA esamukeli sesathelayithi akhishwe amakhasimende, ngokunaka kokukhiqiza ukwakheka kwe-RF, izifunda ezihlobene ne-LNB, izixhumi zedijithali ezisheshayo, ukuhlanganiswa kwe-BGA lapho kusetshenziswa khona, i-firmware kanye nokuhlolwa kokusebenza kwezinga lesistimu.

Ukukhiqiza i-PCB ye-Satellite TV Receiver yamaphrojekthi e-OEM

Ibhodi lokwamukela livame ukuxhunywa ku-LNB ngokusebenzisa isikhombimsebenzisi se-coaxial RF. Ukusetshenziswa kukagesi okuqondile kuncike ekwakhiweni kwe-tuner/front-end yekhasimende kanye nesistimu yesathelayithi. Iphuzu elibalulekile lokukhiqiza ukuthi indlela yokufaka ye-RF kanye nesekethe yamandla/yokulawula ehlobene nayo kuyingxenye yochungechunge lukagesi oluchaziwe futhi akufanele kuphathwe njengesixhumi esivamile esinejubane eliphansi.

Izindinganiso Zesathelayithi Kumelwe Zishiwo Esikhundleni Sokuthi Zicatshangelwe

I-DVB-S2 iyindinganiso yokudlulisa nokufaka ikhodi yesathelayithi yesizukulwane sesibili, futhi i-DVB-S2X iyayandisa ezindaweni ezengeziwe zohlelo lokusebenza. Akuwona wonke umamukeli wesathelayithi osekela amazinga noma izici zesevisi ezifanayo. Ukukhishwa kokukhiqiza kufanele kubonise i-tuner yangempela, i-demodulator kanye nokucushwa okusekelwayo.

Iphrojekthi ye-DVB ichaza i-DVB-S2 njengohlelo lwesathelayithi lwesizukulwane sesibili kanye ne-DVB-S2X njengesandiso. Imininingwane ye-DVB-S2 kanye nemininingwane ye-DVB-S2X

I-Satellite RF Front End, i-LNB Interface kanye ne-PCB Layout

Ukusebenza kwe-RF kuncike ekuhleleni okubonakalayo kwesixhumi sokufaka, i-tuner/idivayisi yangaphambili, isivikelo, isakhiwo somhlabathi kanye namasekethe okushintsha aseduze. Inqubo yokukhiqiza kufanele ilondoloze indawo ekhishwe kanye nomzila. Uma umklamo udinga i-impedance elawulwayo noma i-RF stackup ethile, lezo zidingo kufanele zifakwe ekukhishweni kokukhiqiza.

I-Highleap isekela ukwakheka kwe-RF PCB , ukulawulwa kwe-RF impedance kanye nokukhiqizwa kwe-RF PCB ngokwezidingo ezichazwe ngamakhasimende.

• Okokufaka kwe-RFUkuqina komshini kanye nogesi kokuxhumeka kokufaka kwe-coaxial.
• Amandla/ukulawula okuhlobene ne-LNBImisebenzi yokulawula kanye namandla incike ekwakhiweni kwesathelayithi ekhishwe ngaphambili.
• I-TunerIkhetha futhi ihumushe isignali ye-RF engenayo ngokwedizayini yomkhiqizo.
• I-DemodulatorIthola kabusha ukusakaza kwedijithali isebenzisa indinganiso yesathelayithi ecacisiwe.
• Iprosesa yedijithaliIphatha ukucubungula ezokuthutha, ukucacisa kanye nemisebenzi ebhekene nomsebenzisi njengoba kudingeka.
• Okokusebenza kokuxhumanaI-HDMI, i-AV, i-USB, i-Ethernet noma ezinye izixhumi zincike kumkhiqizo.

Imisebenzi Ehlobene ne-LNB Kumelwe Ichazwe Kuhlelo

Ukuxhumeka kwe-coaxial ku-LNB kungathwala i-RF kanye namandla noma ukuziphatha kokulawula okuqondene nomkhiqizo. Isekethe eqondile incike ekwakhiweni kwesamukeli. Ngakho-ke ukukhishwa kokukhiqiza kufanele kubonise isixhumi, isekethe yokulawula ehlobene, ukuvikelwa kanye ne-interface ye-tuner ngokucacile kunokuthatha isekethe ejwayelekile "yokufaka i-satellite".

Ukuvikela i-RF Kufanele Kuphathwe Njengesici Sokuklama

Lapho umklamo usebenzisa amathini noma izingxenye zokuvikela, indawo yesivikelo, isisekelo, ukuphakama kanye nokulandelana kokufakwa kufanele kube yingxenye yomdwebo wokuhlanganisa. Isivikelo esihlukile ngogesi noma esilahlekile ngomshini singashintsha kokubili i-RF kanye nokuziphatha kokushisa.

Ukuvikelwa Kokufaka kwe-RF kanye Nokuphathwa Kwekhebula

Okokufaka kwe-satellite coaxial kungavezwa ekuxhumekeni okuphindaphindiwe kanye nendawo kagesi yesistimu ye-antenna efakiwe. Inhlangano yokukhiqiza kufanele ilondoloze ukuvikelwa okucacisiwe kanye nesakhiwo sesixhumi. Uma ingxenye yokuvikela yokufaka ifakiwe kumklamo okhishwe, izilinganiso zayo kanye nengxenye evunyelwe ngqo kufanele ilawulwe nge-BOM.

Ukususwa Kwemisebenzi, Izixhumi Zedijithali kanye Nezici Zomkhiqizo

Isamukeli sesathelayithi singaqukatha i-HDMI, i-USB, i-Ethernet kanye nezixhumi zememori ngaphezu kwe-RF front end. Lezi zimpawu zingadinga umzila olawulwayo kanye nezakhiwo ezithile zesixhumi. Ukuhlolwa kokukhiqiza kufanele kuhlukanise indlela yokukhipha yedijithali ekuhlolweni kokutholwa kwe-RF ukuze ukwehluleka kuhlukaniswe kahle.

Ukuhlela, Ukufinyelela Okunemibandela kanye nezici Zomkhiqizo

Ama-satellite receiver angaba nesofthiwe ethile yomkhiqizo, imisebenzi yokufinyelela enemibandela, izici zenethiwekhi noma amakhono okurekhoda. Lokhu akufanele kwethulwe njengezidingo ezijwayelekile. Ifektri idinga kuphela ukuhlola imisebenzi efakiwe ku-SKU ekhishwe kanye nenqubo yokwamukelwa kwekhasimende.

1. isheduli: layisha i-firmware evunyiwe noma uqinisekise idivayisi ehlelwe kusengaphambili.
2. Iba namandla: qinisekisa ukuqaliswa kokuqala kanye nokuqaliswa kwehadiwe.
3. Ukutholwa kwe-RF: xhuma umthombo wokuhlola ovunyiwe yikhasimende bese uqinisekisa ukuziphatha okulindelekile kwe-front-end.
4. Ukubhala ikhodi/ukukhipha: qinisekisa izixhumi zevidiyo nomsindo ezidingekayo.
5. Lawula: qinisekisa imiyalo ekude noma yephaneli engaphambili.
6. Izici ozikhethela: hlola inethiwekhi, isitoreji noma imisebenzi yokulawula ukufinyelela uma ifakiwe.
7. Irekhodi: londoloza ulwazi lwe-firmware kanye nokubuyekezwa kwebhodi ngomphumela weyunithi.

I-DVB-S2 kanye ne-DVB-S2X Ziyizindinganiso, Akuzona Izakhiwo ze-PCB

I-DVB-S2 ichaza uhlelo lokwakha, ukubhala ikhodi kanye nokuguqula i-satellite yesizukulwane sesibili, kuyilapho i-DVB-S2X ingeza izandiso zezinhlelo zokusebenza ezengeziwe. Lezi zindinganiso azisho ukuthi i-PCB eyodwa yokwamukela yonke indawo iyasebenza. Abathengisi abahlukene bangasebenzisa uhlangothi lokwamukela ngama-chipset ahlukene kanye nezakhiwo zebhodi ngenkathi begcina amazinga okusebenzelana.

Ngenxa yalesi sizathu, umenzi we-PCB akufanele athi into ethile, inani lezingqimba noma i-topology yezingxenye kuyimpoqo ngoba nje isamukeli sesathelayithi sisekela i-DVB-S2.

I-PCBA yesamukeli sesathelayithi, i-BGA Assembly kanye nokulawula ukushisa

Imiklamo eminingi yesimanje yokwamukela i-satellite isebenzisa iprosesa yesistimu noma i-demodulator enokupakisha okuhle. Uma amadivayisi e-BGA ekhona, amajoyinti e-solder ngaphansi kwephakheji awakwazi ukuhlolwa ngokubona. Uhlelo lokuhlola kufanele luhambisane nephakheji kanye nenqubo yokwamukelwa kwekhasimende.

I-Highleap isekela i-BGA PCBA kanye ne-AOI yokuhlanganiswa kwe-SMT okuzungezile. I-X-ray ingafakwa uma kudingeka yi-component kanye nohlelo lwekhwalithi.

Izinto Okufanele Uzicabangele Ngokushisa Nokuvikela

Iprosesa kanye ne-tuner kungaba nezidingo ezihlukene kakhulu zokushisa kanye ne-electromagnetic. Ngakho-ke, ithini lesivikelo, i-heatsink noma i-interface yokushisa kungaba yingxenye yokuhlanganiswa kokukhiqiza. Lezi zingxenye zidinga imiyalelo ecacile yemishini ukuze umkhiqizo wokugcina uhambisane nokucushwa okuqinisekisiwe.

Isihloko Sokuqala Kufanele Sihlukanise Ukwehluleka kwe-RF Nokwehluleka kwe-Decoder

I-receiver ewusizo iqinisekisa indlela yesignali ngezigaba. Okokuqala qinisekisa isimo sangaphambili kanye nesimo sokukhiya; bese uqinisekisa ukucutshungulwa kanye nokukhishwa. Lokhu kwenza ukwehluleka kube lula kakhulu kunomphumela owodwa othi “akukho sithombe” kusukela ekuqaleni kuya ekugcineni.

1. Ukuxhumeka kwe-RF: qinisekisa umthombo ovunyiwe kanye nesixhumi esibonakalayo se-coaxial.
2. Ukuqaliswa kwe-front-end: qinisekisa isimo sokuqalisa esihlobene ne-tuner.
3. Ukutholwa: hlola isimo sokukhiya noma sokwamukela esichaziwe.
4. Iyacubungula: qinisekisa indlela ye-firmware kanye ne-decoder.
5. okukhipha: qinisekisa i-HDMI noma esinye isikhombikubona esidingekayo.
6. Ukulawula komsebenzisi: qinisekisa imisebenzi ye-remote/front-panel.
7. Irekhodi: gcina isigaba sokwehluleka kanye nokucushwa kokukhiqiza.

Ukufakwa Kwengxenye ye-RF Kudinga Iziqu

Imiklamo yokwamukela isathelayithi ingaqukatha i-tuner, i-oscillator, isihlungi, i-amplifier noma izingxenye ezifanayo ezinezici zikagesi ezibalulekile ngale kokuhambisana kwephakheji. Ukushintsha okungalawulwa kungashintsha impendulo yemvamisa, umsindo, inzuzo noma ukuzinza ngisho noma ingxenye ibukeka ingashintshisana kumdwebo wokuhlanganisa. Ngezinto ze-BOM ezibalulekile ze-RF, umthetho wokuthola ovunyiwe yikhasimende kufanele ube yingxenye yokukhishwa komkhiqizo.

Ukuhlolwa Kokusebenza Kokwamukela Isathelayithi Nokuqinisekiswa Kwesihloko Sokuqala

Ukuhlolwa kwe-RF ebhodini elivulekile akuvamile ukulingana nokuhlolwa ngaphakathi kwendawo yokugcina ebiyelwe. Ukuqondisa ikhebula, ukuvikela, umsebenzi wensimbi kanye nokubekwa kwesixhumi se-coaxial kungathinta ukuhlanganiswa kokugcina. Ikhasimende kufanele linqume ukuthi yikuphi ukuhlolwa kwe-RF okumele kuphindwe ngemva kokuba ukwakhiwa kwemishini sekuqediwe.

Kungani i-LNB Interface Kufanele Ihlolwe Nge-Receiver Front End

Ukuhlolwa okulula kokuqhubeka kwesixhumi se-coax akukwazi ukufakazela ukuthi indlela ephelele ehlobene ne-LNB isebenza kahle. Lapho ikhasimende liyidinga khona, i-fixture kufanele iqinisekise ukuziphatha kokulawula noma kwamandla okuhambisana nokuqaliswa kwesamukeli, bese iqhubekela ekuhlolweni kokutholwa kwe-RF okuvunyiwe. Lokhu kudala ukuhlukaniswa okucacile phakathi kwezinkinga zokuhlanganiswa kwesixhumi nezinkinga zokusebenza kwe-front-end.

Kusukela Ekuhlolweni kwe-RF kuya Ekuhlanganisweni Komkhiqizo Wokugcina

Ukuhlolwa kwe-RF ezingeni lebhodi kunikeza ukuhlolwa okuwusizo kokukhiqiza, kodwa ukuhlanganiswa komkhiqizo wokugcina kungaletha izinguquko ngokusebenzisa umzila wekhebula, ukuvikela indawo ebiyelwe, ama-heatsink kanye nezixhumi. Uhlelo lwesihloko sokuqala kufanele luchaze ukuthi yiziphi izilinganiso eziphindaphindwayo ngemva kokuhlanganiswa kokucushwa kokugcina komshini. Lokhu kudala umngcele ocacile phakathi kokwamukelwa kwe-PCBA kanye nokuqinisekiswa okuphelele kokwamukela.

Amabhodi Okwamukela I-Satellite Ahlobene Nokuthola Izinto Kwamanye Amazwe

Uhlelo lokwamukela i-satellite lungaqukatha isigaba sokufaka/sokushuna se-RF, ibhodi lokucubungula eliyinhloko, isigaba samandla, isikhombimsebenzisi sokufinyelela okunemibandela kanye nokuxhumeka kwe-LNB yangaphandle. Eminye imikhiqizo ihlanganisa konke ku-PCB eyodwa; eminye isebenzisa ukwakheka kwe-modular. Ngakho-ke ibhodi elikhulu lokwamukela i-satellite kufanele lihlukaniswe ne-LNB uqobo, imishini ye-antenna yangaphandle kanye nebhokisi lokusetha eliqediwe.

Imibandela yokuthenga eseduze ifaka phakathi ibhodi elikhulu lokwamukela i-satellite, i-DVB-S/S2 receiver PCB, ibhodi le-satellite tuner, i-LNB interface PCB, i-RF receiver PCBA kanye ne-satellite set-top box motherboard. I-Highleap Electronics ikhiqiza ama-PCB ahlanganiswe ngamakhasimende ngemuva kwemikhiqizo enjalo kunokukhiqiza nokuthengisa imishini yethelevishini ye-satellite ephelele.

Ukutholwa Kwesathelayithi Yesifunda

Isamukeli sesathelayithi esenzelwe iNyakatho Melika singaba nezidingo ezahlukene zesevisi kanye nokufinyelela okunemibandela kusuka kumukeli waseYurophu. Imikhiqizo yesathelayithi yase-UK, eJalimane, eFrance nase-Italy ingahluka futhi kuhlelo lokusebenza kanye nokucushwa kwesofthiwe. I-Australia kanye nezinye izimakethe zesifunda zingaba nokuqagela okuhlukile kokuthunyelwa. Isicelo sokukhiqiza se-PCB kufanele sithole i-tuner yangempela, i-demodulator, isixhumi, i-firmware kanye nendawo yokuhlola kunokuthembela egameni lesifunda kuphela.

Ku-OEM, usesho oluhlobene oluwusizo luhlanganisa umenzi we-PCB wesamukeli sesathelayithi , i-PCB assembly ye-tuner yesathelayithi , i-RF set-top box board , i-DVB-S2 PCBA kanye nokukhiqizwa kwe-mainboard yesathelayithi ye-TV . Lokhu kufanele kuhlanganiswe nezigaba ezifanele ubuchwepheshe kunokuba kwethulwe njengohlu lwamagama angukhiye.

Imibhalo Yokuthengwa Nokukhiqiza ye-PCB Yokwamukela Isathelayithi

Iphakheji yamakhasimende ewusizo kakhulu ikhomba uhlelo lokufaka lwe-RF, i-tuner kanye ne-demodulator, izinga elisekelwayo, izixhumi zokukhipha, i-firmware, imininingwane yesixhumi kanye nomthombo wokuhlola. Uma ububanzi buhlanganisa indawo evalekile eqediwe, izidingo zemishini kanye nezokuvikela nazo kufanele zifakwe.

Imibhalo Yokukhiqiza Nokulandelela

Ukukhishwa kwe-PCB yesamukeli sesathelayithi kufanele kube nedatha yokwenziwa, amanothi e-stackup noma e-RF, i-BOM, ukukhetha nokubeka, umdwebo wokuhlanganisa, ulwazi lwesixhumi kanye nesivikelo, i-firmware kanye nemiyalelo yokuhlola ukusebenza. I-Highleap Electronics ingabe isigcina ukukhiqizwa okuhambisanayo kuzo zonke izindawo ezilandelayo ngenkathi igcina ukwakheka kwesamukeli sesathelayithi okuvunyiwe.

Ukuthengwa kwe-PCB yesamukeli sesathelayithi kufanele kuqondiswe yizincazelo

Ngokuthenga, isigaba somkhiqizo sodwa asanele ukuqhathanisa abaphakeli. Iphakheji yesilinganiso kufanele ichaze ubukhulu bebhodi, izendlalelo, ithusi, izinto zokwakha, izidingo ze-RF, isu lezingxenye, okuqukethwe kwe-BGA, ubuningi bomhlangano, uhlelo kanye nobubanzi bokuhlola. I-Highleap ingabuyekeza lokhu okufakwayo ngaphambi kokucaphuna ukuze ukwenziwa kanye nokuqagela kwe-PCBA kube sobala.