Dukunze kugereranya oscillator ya kristu n'umutima wumuzunguruko wa digitale, kubera ko imirimo yose yumuzunguruko wa digitale idashobora gutandukana nikimenyetso cyamasaha, kandi oscillator ya kristu igenzura sisitemu yose. Niba oscillator ya kristu idakora, sisitemu yose izahagarikwa, bityo oscillator ya kristu nicyo gisabwa kugirango umuzenguruko wa digitale utangire gukora.
Oscillator ya kristu, nkuko dukunze kubivuga, ni oscillator ya quartz kristal hamwe na quartz kristal resonator. Byombi bikozwe mubikorwa bya piezoelectric ya kristal ya quartz. Gukoresha umurima w'amashanyarazi kuri electrode ebyiri za kirisiti ya kirisiti itera guhindagurika kwa kirisiti, mugihe gukoresha ingufu za mashini kumpande zombi bitera umurima w'amashanyarazi kugaragara muri kristu. Kandi ibyo bintu byombi birashoboka. Ukoresheje uyu mutungo, guhinduranya imbaraga zikoreshwa kumpande zombi za kristu kandi wafer iranyeganyega muburyo bwa tekinike, kimwe no kubyara amashanyarazi asimburana. Ubu bwoko bwo kunyeganyega hamwe numurima wamashanyarazi mubisanzwe ni bito, ariko mugihe runaka, amplitude iziyongera cyane, aribyo piezoelectric resonance, bisa na LC loop resonance dusanzwe tubona.
Nkumutima wumuzunguruko wa digitale, nigute oscillator ya kristu igira uruhare mubicuruzwa byubwenge? Urugo rwubwenge nko guhumeka, umwenda, umutekano, kugenzura nibindi bicuruzwa, byose bikenera module yohereza itagikoreshwa, banyuze kuri protokole ya Bluetooth, WIFI cyangwa ZIGBEE, module kuva kumpera imwe kugeza kurundi, cyangwa binyuze muburyo bwo kugenzura terefone igendanwa, kandi module idafite umugozi nigice cyibanze, bigira ingaruka kumikorere ya sisitemu yose, bityo rero hitamo sisitemu yo gukoresha kristu oscillator. Kugaragaza intsinzi cyangwa gutsindwa kwinzira ya sisitemu.
Bitewe n'akamaro ka kristu oscillator mumuzunguruko wa digitale, dukeneye kwitonda mugihe dukoresha no gushushanya:
1. Hariho kristu ya quartz muri kristu oscillator, byoroshye gutera kwangirika kwa kirisiti no kwangirika iyo byatewe cyangwa bigabanutse hanze, hanyuma oscillator ya kristu ntishobora kunyeganyega. Kubwibyo, kwishyiriraho kwizerwa kwa kristu oscillator igomba gutekerezwa mugushushanya umuzenguruko, kandi umwanya wacyo ntugomba kuba hafi yisahani hamwe nibikoresho bikoreshwa mugishoboka.
2. Witondere ubushyuhe bwo gusudira mugihe cyo gusudira ukoresheje intoki cyangwa imashini. Kunyeganyega kwa Crystal byumva ubushyuhe, ubushyuhe bwo gusudira ntibugomba kuba hejuru cyane, kandi igihe cyo gushyuha kigomba kuba kigufi gishoboka.
Imiterere ya kristu oscillator yumvikana irashobora guhagarika sisitemu yimirasire.
1. Ibisobanuro by'ibibazo
Igicuruzwa ni kamera yo murwego, igizwe nibice bitanu imbere: ikibaho cyibanze, ikibaho cya sensor, kamera, ikarita ya SD yibuka na batiri. Igikonoshwa nigikonoshwa cya plastiki, kandi ikibaho gito gifite intera ebyiri gusa: DC5V yimbere yimbaraga zo hanze hamwe na USB interineti yo kohereza amakuru. Nyuma yikizamini cyimirasire, usanga hari ikibazo cyimirasire y urusaku rugera kuri 33MHz.
Amakuru yikizamini yumwimerere ni aya akurikira:
2. Gusesengura ikibazo
Iki gicuruzwa cyibikoresho byububiko bwa pulasitike, ibikoresho bitarinze gukingirwa, ikizamini cyose gusa umugozi wamashanyarazi hamwe na USB ya USB bivuye mugikonoshwa, ni umwanya wo guhuza interineti urabagirana numurongo wamashanyarazi na USB? Kubwibyo, intambwe zikurikira zifatwa mugupima:
(1) Ongeraho impeta ya magneti gusa kumurongo wamashanyarazi, ibisubizo byikizamini: iterambere ntabwo rigaragara;
(2) Ongeraho gusa impeta ya magnetiki kuri USB, ibisubizo byikizamini: iterambere ntirigaragara;
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Birashobora kugaragara uhereye hejuru ko ingingo zintera zivanwa hanze zivuye mumirongo ibiri, ntabwo arikibazo cyumuriro wamashanyarazi cyangwa USB interineti, ariko ingingo zimbere zimbere zifatanije nintera zombi. Gukingira interineti imwe gusa ntibishobora gukemura ikibazo.
Binyuze mu gupima hafi y’umurima, usanga ko 32.768KHz ya kristal oscillator yo mu kibaho kibyara ingufu zitanga imirasire ikaze, bigatuma insinga zikikije hamwe na GND ihuza urusaku rw’imvururu 32.768KHz, hanyuma igahuzwa kandi ikanyuzwa mu muyoboro wa USB USB na umugozi w'amashanyarazi. Ibibazo bya kristu oscillator biterwa nibibazo bibiri bikurikira:
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3, igisubizo
Dukurikije isesengura, ingamba zikurikira ziboneka:
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(2) Wibuke kudashyira hasi ahantu hashyizweho kristu hamwe na projection hepfo;
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(4) Kirisiti ishyirwa hafi ya chip, kandi umurongo uri hagati yombi ni mugufi kandi ugororotse bishoboka.
4. Umwanzuro
Muri iki gihe sisitemu nyinshi za kristu oscillator yisaha yisaha ni ndende, guhuza imbaraga guhuza imbaraga birakomeye; Kwivanga guhuza ntabwo gutangwa gusa kwinjiza no gusohora imirongo, ariko kandi biva mumwanya. Niba imiterere idashyize mu gaciro, biroroshye gutera ikibazo gikomeye cyimirasire y urusaku, kandi biragoye kubikemura mubundi buryo. Kubwibyo, ni ngombwa cyane kumiterere ya kristal oscillator na CLK ibimenyetso byumurongo muburyo bwa PCB.
Icyitonderwa kuri PCB igishushanyo cya kristu oscillator
. Umwanya ugomba gushyirwa muburyo: ukurikije icyerekezo cyo gutanga amashanyarazi, icyerekezo gifite ubushobozi buke kigomba gushyirwa murutonde kuva kinini kugeza gito.
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(3) Ntugashire munsi ya oscillator ya kristu kugirango umenye neza ko hasi yuzuye. Muri icyo gihe, ntukoreshe insinga muri 300mil ya oscillator ya kristu, kugirango wirinde ko oscillator ya kristu itabangamira imikorere yizindi nsinga, ibikoresho nibice.
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