Ukupheliswa kwe-Dorp-In kwi-RF Microwave

Ukupheliswa kwe-Dorp-In kwi-RF Microwave

Iimbonakalo:

I-frequency ephezulu
Ukuthembeka okuphezulu kunye nozinzo

Izicelo:

Okungenazingcingo
Izixhobo zombane
Iradar

QHAGAMSHELANA NGOKU

I-Drop-In Termination (ekwaziwa ngokuba yi-surface-mount termination resistor) yinxalenye ye-surface-mount technology (SMT) discrete eyenzelwe ngokukodwa iisekethe zedijithali ezikhawulezayo kunye neesekethe zerediyo (RF). Umsebenzi wayo ophambili kukuthintela ukubonakaliswa kwesignali nokuqinisekisa ukuthembeka kwesignali (SI). Endaweni yokuqhagamshelwa ngeengcingo, "ifakwa" ngqo okanye "ifakwe" kwiindawo ezithile kwimigca yokudlulisela ye-PCB (njengemigca ye-microstrip), isebenza njenge-parallel termination resistor. Yinxalenye ebalulekileyo ekusombululeni imiba yomgangatho wesignali ekhawulezayo kwaye isetyenziswa kakhulu kwiimveliso ezahlukeneyo ezifakwe ngaphakathi, ukusuka kwiiseva zekhompyutha ukuya kwiziseko zonxibelelwano.

Iimpawu:

1. Ukusebenza okungaqhelekanga kwe-high-frequency kunye nokuhambelana okuchanekileyo kwe-impedance
I-Ultra-Low parasitic inductance (ESL): Ukusebenzisa izakhiwo ezintsha ezithe nkqo kunye nobuchwepheshe bezinto eziphambili (ezifana netekhnoloji yefilimu encinci), i-parasitic inductance iyancitshiswa (ngesiqhelo amaxabiso okuchasana achanekileyo: Inika amaxabiso okuchasana achanekileyo kwaye azinzileyo), ukuqinisekisa ukuba i-termination impedance ihambelana ngokuchanekileyo ne-impedance yempawu yomgca wothumelo (umz., 50Ω, 75Ω, 100Ω), ukwandisa ukufunxwa kwamandla esignali kunye nokuthintela ukubonakaliswa.
Impendulo egqwesileyo yefrikhwensi: Igcina iimpawu zokumelana ezizinzileyo kuluhlu olubanzi lwefrikhwensi, isebenza ngcono kunee-resistor ze-lead ze-axial okanye ze-radial.
2. Uyilo lwesakhiwo oluzalelwe ukuhlanganiswa kwe-PCB
Ulwakhiwo oluthe nkqo olulodwa: Ukuhamba komsinga kuthe nkqo kumphezulu webhodi yePCB. Ezi electrode zimbini zibekwe phezulu nasezantsi kwecandelo, ziqhagamshelwe ngqo kumaleko wesinyithi womgca wothumelo kunye nomaleko womhlaba, zenza indlela yomsinga omfutshane kwaye kunciphisa kakhulu ukujiya kweluphu okubangelwa ziingcingo ezinde ze-resistor zemveli.
Itekhnoloji eqhelekileyo yokuxhoma umphezulu (i-SMT): Iyahambelana neenkqubo zokuhlanganisa ezizenzekelayo, ifanelekile kwimveliso enkulu, iphucula ukusebenza kakuhle kunye nokuhambelana.
Incinci kwaye igcina indawo: Ubungakanani beepakeji ezincinci (umz., 0402, 0603, 0805) zigcina indawo exabisekileyo yePCB, nto leyo eyenza ukuba ilungele uyilo lweebhodi ezinoxinano olukhulu.
3. Ukuphathwa kwamandla aphezulu kunye nokuthembeka
Ukusasazwa kwamandla okusebenzayo: Nangona incinci, uyilo lubangela ukusasazeka kwamandla, nto leyo eyenza ukuba ikwazi ukusingatha ubushushu obuveliswa ngexesha lokupheliswa kwesignali ngesantya esiphezulu. Kukho izilinganiso ezininzi zamandla (umz., 1/16W, 1/10W, 1/8W, 1/4W).
Ukuthembeka okuphezulu kunye nozinzo: Isebenzisa iinkqubo zezinto ezizinzileyo kunye nezakhiwo ezomeleleyo, inika amandla abalaseleyo oomatshini, ukumelana noxinzelelo lobushushu, kunye nokuthembeka kwexesha elide, okwenza ifaneleke kwizicelo ezifuna amandla kwimizi-mveliso.

Izicelo:

1. Ukupheliswa kweebhasi zedijithali ezikhawulezayo
Kwiibhasi ezihamba ngesantya esiphezulu (umz., i-DDR4, i-DDR5 SDRAM) kunye neebhasi ezahlukeneyo, apho amazinga okudlulisa isignali ephezulu kakhulu, ii-Drop-In Termination resistor zibekwe ekupheleni komgca wokudlulisa (ukuphela kokuphela) okanye kumthombo (ukuphela komthombo). Oku kubonelela ngendlela engaphantsi kwe-impedance eya kumbane okanye emhlabeni, ifunxa amandla esignali xa ifika, ngaloo ndlela isusa ukubonakalisa, ihlambulula ii-waveforms zesignali, kwaye iqinisekisa ukuhanjiswa kwedatha okuzinzileyo. Le yeyona ndlela yayo idumileyo nebanzi kwiimodyuli zememori (ii-DIMM) kunye noyilo lwebhodi yomama.
2. Iisekethe ze-RF kunye ne-microwave
Kwizixhobo zonxibelelwano ezingenazingcingo, iinkqubo zeradar, izixhobo zovavanyo, kunye nezinye iinkqubo zeRF, iDrop-In Termination isetyenziswa njengomthwalo ohambelanayo kwimveliso yezahluli zamandla, ii-couplers, kunye nee-amplifier. Ibonelela nge-standard 50Ω impedance, ifunxa amandla e-RF agqithisileyo, iphucula ukwahlulwa kwetshaneli, inciphisa iimpazamo zokulinganisa, kwaye ithintele ukubonakaliswa kwamandla ukukhusela izinto ze-RF ezinobuthathaka kunye nokuqinisekisa ukusebenza kwenkqubo.
3. Ii-interfaces ze-serial ezinesantya esiphezulu
Kwiimeko apho iingcingo zebhodi zinde okanye i-topology iyinkimbinkimbi, njenge-PCIe, i-SATA, i-SAS, i-USB 3.0+, kunye nezinye iilinki ze-serial ezikhawulezayo ezineemfuno ezingqongqo zomgangatho wesignali, i-Drop-In Termination yangaphandle ekumgangatho ophezulu isetyenziselwa ukufanisa kakuhle.
4. Izixhobo zothungelwano kunye nonxibelelwano
Kwii-routers, iiswitshi, ii-optical modules, kunye nezinye izixhobo, apho imigca yesignali yesantya esiphezulu kwiiplane zangasemva (umz., 25G+) ifuna ulawulo oluqinileyo lwe-impedance, i-Drop-In Termination isetyenziswa kufutshane nezihlanganisi ze-backplane okanye eziphelweni zemigca ende yokudlulisa ukuze kuphuculwe ukuthembeka kwesignali kunye nokunciphisa izinga lempazamo ye-bit (BER).

I-QualwaveIzixhobo zeDorp-In Terminations zigubungela uluhlu lwefrikhwensi DC~3GHz. Umgangatho wolawulo lwamandla ufikelela kwi-100 watts.