Yiziphi Izindima Ezifihliwe Ezidlalwa Ama-Crystal Oscillator 'kumashelufu ezincwadi kagesi'?

I. Ukuchaza "Ishalofu Lezincwadi Likagesi"

I-"Electronic Bookshelf" aliyona iyunithi yesitoreji esiphathekayo kodwa{0}}iyisikali sokufunda{1}}esikhulu noma itheminali yokufunda ehlakaniphile. Umgomo wayo oyinhloko uwukuphindaphinda ukuphathwa kwencwadi nokufunda kwemitapo yolwazi evamile noma amashalofu ezincwadi ngefomethi yedijithali.

II. Izingxenye Ezibalulekile kanye Nemisebenzi Yamashalofu Ezincwadi E-elekthronikhi

1. Amadivayisi Ezingxenyekazi Zekhompyutha Nezindima Zawo

Isiboniso se-E Esikhulu: Esisukela ku-7.8 amayintshi ukuya ku-13.3 amayintshi noma esikhulu (esikhulu kakhulu kunejwayelekile 6–7 intshi e{4}}yabafundi e{4}), sinikeza indawo yokufunda efana nezincwadi ezibonakalayo noma amamagazini. Iningi lisebenzisa ubuchwepheshe be-E Ink ukuze bunethezeke amehlo nokusebenza kahle kwamandla.

Iphrosesa Eyinhloko: Isekelwe ku-ARM Cortex-A noma i-Cortex-I-M series application processors (AP) noma i-microcontrollers (MCU), iphatha ukusebenza kwesistimu, ukunikezela, ukuphathwa kwefayela, nokuxhumana kwenethiwekhi.

Imemori: Ihlanganisa i-RAM ({0}}yemisebenzi yesikhathi sangempela) kanye ne-Flash/ROM (yokugcina).

Ukuxhumana Okungenantambo: I-Wi-Fi isezingeni; -amamodeli aphezulu angase engeze i-4G/5G noma i-Bluetooth.

Ibhethri:{0}}Ikhono elikhulu lokusekela izikhathi zokufunda ezinwetshiwe.

Izindlela Zokufaka: Usekelo lwesikrini esithintwayo, ngamamodeli athile agcina izinkinobho zokuvula ikhasi elibonakalayo-.

Izixhumi ezibonakalayo: I-USB-C (yokushaja nokudluliswa kwedatha), futhi ngokunokwenzeka nembobo yekhadi le-MicroSD.

Izici Zomsindo: Izipikha namakrofoni (kumamodeli akhethiwe) zokudlala i-audiobook noma okokufaka ngezwi.

2. Isofthiwe & Imisebenzi Eyinhloko

E-Ukufundwa Kwencwadi: Isekela amafomethi amakhulu (EPUB, PDF, MOBI, TXT, njll.) ngezilungiselelo ezingenziwa ngendlela oyifisayo (ifonti, isakhiwo, amanothi, ukuhumusha).

Ukuphathwa Kwelabhulali: Kuhlela amaqoqo amakhulu njengomtapo wolwazi ophathekayo, okuvumela ukuhlukaniswa ngezigaba, ukusesha, ukuhlunga, nokubekisa amabhukumaka.

Ukufinyelela Okuqukethwe: Ixhuma nge-Wi-Fi ezitolo zezincwadi eziku-inthanethi (ezakhelwe-noma{2}}ezivela eceleni, njenge-JD Read, WeChat Read, Kindle) ukuze zilande futhi zivumelanise ukuqhubeka kokufunda.

Amanothi nezichasiselo: Ivumela-ukuthatha amanothi, ukugqamisa, nezichasiselo nge-stylus noma ngekhibhodi.

Ukuphatha Amadokhumenti: Kugxile ekufundeni i-PDF, isichasiselo, nokugeleza kabusha; okunye ukwesekwa kwemibhalo ye-Office (elungele umsebenzi/ukufunda).

Izandiso Zohlelo Lokusebenza: Vula amasistimu (isb, i-Android) avumela abasebenzisi ukuthi bafake-ukufundwa kwezinkampani zangaphandle noma izinhlelo zokusebenza eziwusizo.

III. Ama-Crystal Oscillator Kumashalofu Ezincwadi E-elekthronikhi: Amaphakheji, Amafrikhwensi, kanye Nemininingwane

Amashalofu ezincwadi kagesi, njengamasistimu ashumekiwe ayinkimbinkimbi, adinga imithombo yewashi ehlukile yamamojula ahlukene. Ngezansi ukuhlukaniswa kwemininingwane ye-crystal oscillator ejwayelekile:

IV. Kungani Lawa Ama-Crystal Oscillators Abalulekile

Ukunikeza Isikhathi Esiqondile "Ukushaya kwenhliziyo"
Izingxenye zedijithali ezifana namaphrosesa, amamojula okuxhumana, nezixhumi ezibonakalayo zithembele kumasiginali wewashi azinzile ukuze avumelanise ukusebenza. Ngaphandle kwazo, amasistimu angeke asebenze kahle noma asebenze ngendlela engaqondakali.

Imojula Yomhlangano-Izidingo Eziqondile

Ukusebenza Kwephrosesa: -imvamisa ephezulu, iwashi eliyinhloko elizinzile (ngokuphindaphinda kwe-PLL) liqinisekisa ukusebenza kahle kwe-CPU.

Ikhwalithi Engenantambo:{0}}Ukunemba okuphezulu,{1}}isigaba esiphansi-amakristalu omsindo (isb, 26/40MHz) abalulekile kuma-transceiver e-Wi-Fi/BT, anomthelela ngokuqondile ekuzinzeni koxhumo, amanani edatha, nekhwalithi yesignali.

Ukugcina isikhathi: Ikristalu engu-32.768kHz RTC igcina isikhathi esinembile ngamandla amakhulu-aphansi, ngisho naphakathi kwemodi yokulala.

Ukudidiyela Okusebenzayo: Isampula yokuthinta, ukuvuselela kwesibonisi, nokudlalwa komsindo ngakunye kudinga amawashi anikezelwe ukuqondisa imisebenzi.

Ukusekela i-Miniaturization
Amakristalu e-Surface-Mount (SMD) (3225, 2520, 2016, 1612) alingana nama-PCB ahlangene, ahlangabezana nezingqinamba zesikhala zesimanje ze-electronics.

Ukuqinisekisa Ukuzinza kanye Nokwethenjelwa
Amakristalu kufanele amelane nokushintsha kwezinga lokushisa nokudlidliza, ngokuvama okuqinile-kwezinga lokushisa nokuzinza{1}}nokuqina kwesikhathi eside.

Ukulawula Ukusetshenziswa kwamandla
Amakristalu e-RTC{0}amandla aphansi anweba isikhathi sokulinda, kuyilapho ukuphathwa kwamandla okusebenzayo kwamanye amakristalu kunciphisa ukusetshenziswa kwamandla sekukonke.

Izindleko Zokulinganisa Nokusebenza
Abakhiqizi bakhetha amakristalu ahlangabezana nezicaciso zobuchwepheshe ngamanani afanelekile, kucatshangelwa ukuhluka kosayizi wephakheji, ukunemba, kanye nomkhiqizo.

V. Isiphetho

Amashalofu ezincwadi e-elekthronikhi adinga ama-crystal oscillator ahlukahlukene,{0}okusebenza okuphezulu. Ukuqonda ukwakheka kwesistimu yabo kanye nezidingo eziqondile zemojuli ngayinye (iphakheji, imvamisa, amandla okulayisha, amamethrikhi okusebenza) kubalulekile. Kusukela kumaphrosesa ukuya kumamojula angenawaya kanye nama-RTC, lezi zingxenye zesikhathi zithonya ngokuqondile ukusebenza kwedivayisi, ukuzinza, nolwazi lomsebenzisi-okubenza babaluleke kakhulu ku-electronic bookshelf ecosystem.