Kukhangelo oluphezulu-loluchaneka lwesathelayithi, ukusebenza komthombo oqhumayo kuqinisekisa ngokuthe ngqo ukuchaneka kwendawo kunye nokuzinza. Njengoko i-BeiDou System (BDS) yamkelwa ngokubanzi kwizicelo ezifana nokuhamba kwemoto, i-IoT, kunye nongqamaniso lwexesha, imfuno ephezulu{2}}yokusebenza, amandla aphantsi{3}, amacandelo amancinci ahlala ekhula. I-TT53H4-10.000-33NQDTN 10 MHz TCXO evela eSuzhou Hangjing sisisombululo sexesha esizinzileyo esiphuhliswe ngokuchanekileyo ukuhlangabezana nale mfuno.
Ixabiso eliPhambili kwizicelo zeBeiDou
Ngaphakathi kwesamkeli se-BeiDou, ukusuka kumphambili we-RF kunye nesizukulwana se-oscillator sasekhaya ukuya kwisampulu ye-baseband kunye nolungelelwaniso lwexesha, iwotshi yereferensi ezinzileyo ibalulekile. I-TT53H4 10 MHz TCXO idlala indima ebalulekileyo kwezi ndawo zilandelayo:
Ukufunyaniswa koMqondiso owomeleziweyo kunye nesakhono sokulandela umkhondo
Esi sixhobo sinikezela ngozinzo olubalaseleyo:
Ukuzinza rhoqo:±0.5 ppm (–40 isidanga ukuya +85 isidanga )
Unyamezelo lweFrequency yokuqala:±1.0 ppm
Kwi-BeiDou signal reception, oku kuguqulela ku:
Yehliswa impazamo yokulinganisa amaza
Uluhlu lokukhangela lwe-Doppler encinci
Isantya esikhawulezayo sokufumana umqondiso wesathelayithi
2. Nantsi inguqulelo yesiNgesi yecandelo eliceliweyo, ukugcina ithoni yobuchwephesha, esemthethweni, kunye nefutshane.
Ukuchaneka kwePositioning eLungisiweyo kunye nesantya sokuHlanganisa
Iimpazamo zamaxesha kwi-TCXO ziguqulela kwiimpazamo zexesha, ezithi zichaphazele izibalo ze-pseudorange. I-TT53H4 inciphisa ngempumelelo ukuqokelelana kweempazamo okubangelwa kukwahluka kokusingqongileyo ngoku:
Ukuzinza kombane:±0.2 ppm (Vcc ±5%)
Ukuzinza komthwalo:±0.2 ppm
Oku kuqinisekisa ukuba iitheminali ze-BeiDou zigcina ukusebenza kokumisa okuzinzileyo nakwiindawo eziguqukayo.
3.Uyilo lweNgxoxo lweSigaba esiPhantsi soMsebenzi woMqondiso oBubuthathaka owomeleziweyo
Le modeli inentsebenzo yenqanaba eliphezulu lengxolo:
-97 dBc/Hz @ 10Hz
-125 dBc/Hz @ 100Hz
-145 dBc/Hz @ 1 kHz
-155 dBc/Hz @ 100 kHz
Izibonelelo:
Ukomelezwa kwesakhono sokulandela umqondiso obuthathaka
Ukuphuculwa kophawu lomamkeli{0}}ukuya{1}}kumlinganiselo wengxolo (SNR)
Izinga lempazamo encinci eyehlisiwe (BER)
Oku kubaluleke kakhulu kwiindawo ezicela umngeni njengemiwonyo yasezidolophini kunye neendawo zangaphakathi.
4. Inkxaso yeBeiDou Ixesha kunye neHoldover
Kwizixhobo zexesha, xa iimpawu zesathelayithi zilahlekile okwethutyana, i-TCXO kufuneka igcine ukuqhubeka kwexesha lendawo. I-TT53H4 ibonelela:
Izinga lokuguga eliphantsi:±1 ppm/ngonyaka
Ukuqala ngokukhawuleza{0}Phezulu:5 ms
Oku kuqinisekisa ukuba inkqubo igcina imveliso yexesha elizinzileyo (umzekelo, 10 MHz + PPS) nangexesha elifutshane -lokulahleka komqondiso wokutshixa.
IiNgcaciso zeMveliso eziPhambili
Iiparamitha ezisisiseko
Ukuphindaphinda okuNgenisiweyo:10.000 MHz
Uhlobo Lwemveliso:HCMOS
Supply Voltage: 3.3V
Ubungakanani Bepakethe:SMD 5.0 × 3.2 mm (i-compact design)
Izinto eziluncedo zokuSebenza koMbane
Isekile yomsebenzi:45% ~ 55% (i-waveform symmetry egqwesileyo)
Ixesha lokuvuka/lokuwa:6 ns (iyahambelana{1}nesantya esiphezulu senkqubo yedijithali)
Usetyenziso lwangoku:Kuphela yi-6 mA ({1}uyilo lwamandla aphantsi)
Uluhlu olubanzi lobushushu kunye nokuthembeka okuphezulu
Ubushushu bokusebenza:-40 isidanga ~ +85 isidanga
Ufanelekile ngovavanyo oluninzi lokuthembeka:
>>Ubushushu bebhayisikile (1,000 imijikelo)
>>Ubushushu obuphezulu kunye nokufuma (85℃/ 85% RH)
>>Ukungcangcazela / Ukulahla / ESD
Ukuqhutywa rhoqo:Zonke zigcinwe ngaphakathi ±1 ppm
III.Iimeko zosetyenziso oluqhelekileyo
I-TT53H4-10.000-33NQDTN isetyenziswa ngokubanzi apha:
BeiDou / GNSS Abamkeli
Ukukhangela iimoto
Iitheminali eziphathwa ngesandla
Ukuma kwedrone
Commudibaniso & Nesixhobo songqamaniso
Iiseli ezincinci ze-5G
Iiseva zongqamaniso lwexesha
Isixhobo sexesha lenethiwekhi
UShishino kunye nezicelo ze-IoT
Igridi ehlakaniphile
Iinkqubo zolawulo lwamashishini
Okuphezulu-ukufunyanwa kwedatha echanekileyo
IV.Kutheni Khetha i-TT53H4?
Xa kuthelekiswa ne-crystal oscillators eqhelekileyo (XO) kunye -nexabiso eliphezulu le-OCXOs, i-TT53H4 ifezekisa ibhalansi efanelekileyo phakathi kokusebenza kunye neendleko:
ppm-uzinzo oluphezulu lokuhlangabezana neemfuno zesicelo se-BeiDou
Uyilo lwenqanaba eliphantsi lengxolo yokusebenza okuphuculweyo kwiindawo ezinzima
Ubungakanani beCompact + ukusetyenziswa kwamandla aphantsi, kufanelekile kwizixhobo ezizinzisiweyo
Ukuthembeka okuphezulu kwiimeko zemizi-mveliso ezifunayo
Iindleko ezigqwesileyo -umlinganiselo wokwenziwa komsebenzi wokusasazwa okukhulu{1}}
V. Isiphelo
Njengoko iNkqubo yeBeiDou iqhubeka nokuguqukela kokuchaneka okuphezulu, ukusetyenziswa kwamandla aphantsi, kunye ne-miniaturization, i-TCXO iye yaba yeyona nto iphambili yereferensi yesixhobo se-terminal. I-TT53H4-10.000-33NQDTN, kunye nokuzinza kwayo ngokukhawuleza, ukusebenza kwengxolo yenqanaba eliphantsi, kunye nokuthembeka okuphezulu, inika isiseko esiqinileyo kunye nesithembekileyo sexesha lokuhamba kwe-BeiDou, ukuvumelanisa ixesha, kunye neenkqubo zonxibelelwano.
Ingaphezulu nje kwe-crystal oscillator{0}}ngoyena mthombo ubalulekileyo "wokubetha kwentliziyo" oqinisekisa ukusebenza kwenkqubo kunye nozinzo.