Dab tsi yog dab tsi txog crystal oscillators tau muab zais hauv lub 'e {{}} phau ntawv phau ntawv'?

A.What yog e -} phau ntawv bookcase?
Ib qho "e {{{- phau ntawv" feem ntau tsis hais txog lub txee rau lub cev, tab sis ib qho loj e-}}}}} Nyeem lub davhlau ya nyob twg. Nws lub hom phiaj tseem ceeb yog simulate lossis hloov phau ntawv tswj thiab kev nyeem ntawv ntawm cov tsev qiv ntawv ib txwm / bookshelves, tab sis nyob rau hauv daim foos digital.

B.What yog cov tseem ceeb ntawm e -} phau ntawv sau npe thiab lawv txoj haujlwm?

1. Cov khoom siv hluav taws xob thiab cov haujlwm:
Loj - Qhov loj me e kua member:} {}}}}}}}}}}}}}}}}} Lub tshuab ntsuas tshuab yog tsuas yog ek, uas yog qhov muag - tus phooj ywg thiab lub zog-ua tau zoo.
Lub ntsiab tswj cov processor: ib daim ntawv thov processor lossis microcontroller ntawm caj npab cortex} Kuv muaj kev tswj hwm cov haujlwm, kev tswj hwm cov ntaub ntawv, kev sib txuas lus hauv network, thiab lwm yam.

{{0-) * Nco: Rand (Random nkag music) thiab nco nco.

Wireless Connection: Wi-Fi (essential), and some high-end models may support 4G/5G or Bluetooth.
Battery: A large-capacity battery to support long-term reading.
Kov npo / Lub Cev Cov Nyees khawm: Txhawb kov cov haujlwm, thiab qee cov qauv khaws cia lub cev Nplooj {{tig khawm khawm.
Interfaces: USB {- c (them nyiaj / cov ntaub ntawv kis), thiab tseem yuav muaj microSD daim npav qhov.
Hais lus / microphone: Txhawb nqa Audiobook playback lossis lub suab tawm tswv yim (rau qee tus qauv).

2. Software thiab ua haujlwm

E {{{0} Daim Ntawv Nyeem Ntawv: Txhawb cov kev cai siv nyiaj (ept, mob, qauv siv, txhais lus, txhais lus, lwm yam).

Loj - Lub Tsev Muag Ntawv Ntawv Teev Ntawv Tswj Xyuas: tswj hwm, txheeb, xws li kev tswj hwm A phau ntawv sau npe / tsev qiv ntawv.

Cov Ntsiab Lus Kev Tshawb Xyuas: Txuas rau Online Hallstores (Ua -}}}}}}}} Kuv, thiab synchmonizes nyeem kev kawm.

Cov Lus Cim thiab Cov Lus Tshaj Tawm: Txhawb cov lus nug -}}}}}}}}, thiab annotating ntawm stylus lossis cov lus qhia keyboard lossis cov lus qhia keyboard.

Cov Khoom Siv Ua: Qee tus qauv qhia txog PDF nyeem ntawv, cov ntawv sau qhia, thiab ua kom muaj peev xwm pom kev, kev txhawb nqa chaw ua haujlwm saib (haum rau chaw ua haujlwm / kawm).

Daim Ntawv Thov nthuav dav: Cov qauv nrog qhib qhov system (xws li Android) Tso cai rau lub teeb tsa ntawm thib peb-}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}} kev nyeem ntawv lossis cuab tam.

Dab tsi pob ntau thiab tsawg ntawm cov roj crystal oscillators siv hauv cov khoom siv kho vajtse thiab cov software thiab cov software no?

Ib qho e {- phau ntawv bookcase yog ib txoj kev sib txawv uas yuav tsum muaj cov peev sib txawv. Cov pob uas nquag muaj ntau thiab tsawg ntawm cov siv lead ua oscillator yog qhia nyob rau hauv cov lus hauv qab no:

D.Thaum twg yog cov kua roj oscillator siv?
1. Tso cai "lub plawv dhia" lub cim:
Cov txheej txheem tseem ceeb, kev sib txuas lus sib txuas lus, thiab cuam tshuam ntawm cov digital system txhua yam yuav tsum muaj qhov tseeb thiab ruaj khov ntawm kev ua haujlwm sab hauv. Lub crystal oscillator yog qhov kev siv lub moos. Yog tsis muaj nws, lub system tsis tuaj yeem ua haujlwm lossis yuav khiav charicically.
2. Ntsib cov kev xav tau ntawm cov qauv sib txawv:
Lub ntsiab tswj kev ua tau zoo: lub siab - zaus thiab lub hauv paus tseem ceeb uas yuav tsum tau ua los ntawm CPU los ntawm PLL ntau zaus ntau npaug.
Kev sib txuas lus wireless zoo: lub siab- {{1} - tus nqi sib tw, cov ntaub ntawv kis tau, thiab ruaj khov. Tsis txaus ntseeg yuav ua rau kev sib txuas teeb meem, kev txiav tawm, thiab nrawm nrawm.
Lub sijhawm kaw: 32.768KHK Crystal Oscillator yog qhov tseem ceeb ntawm kev siv hluav taws xob tsis tu ncua, kom muaj zog tsis tshua muaj zog, ua rau lub sijhawm tsis tshua muaj zog, ua kom lub sijhawm tsis tshua muaj zog
Kev siv kev ua: KOV COJ, tso tawm tshiab, audio rov ua haujlwm, thiab lwm yam, txhua yam xav tau lawv lub moos ua haujlwm ua haujlwm.

3. Miniaturization thiab kev sib koom ua ke:

Surface-mount crystal oscillators (SMD) such as 3225, 2520, 2016, 1612, and SMD versions are mainstream, meeting the demand for highly compact PCB space in modern electronic devices.

4. Kev ruaj khov thiab kev ntseeg tau:

Cov khoom siv hluav taws xob yuav tsum tau ua haujlwm ruaj khov nyob rau ntau qhov chaw (qhov kub hloov, me ntsis kev chee). Crystal oscillators yuav tsum muaj cov yam ntxwv zoo- qhov xwm txheej kub (poob siab thiab ntev- sij hawm kev ntseeg tau.

5. Kev Tswj Fais Fab Tswj Xyuas:

Tshwj xeeb tshaj yog rau RTC Crystal oscillators, lawv cov hluav taws xob tsis tshua muaj yog qhov tseem ceeb rau kev ncua sij hawm ntawm lub sij hawm ntawm lub cuab yeej. Lub zog noj ntawm lwm lub crystal oscillators kuj yuav tsum tau nyob hauv ib qho kev tswj hwm.

6. Nqi -} ua tau hauj lwm zoo:

Nyob rau hauv lub rooj sib tham ntawm lub rooj sib tham ua tau zoo, xaiv cov crystal oscillator nrog tus nqi zoo tshaj plaws yog qhov kev txiav txim tseem ceeb rau cov tuam ntxhab. Muaj ntau tus nqi sib txawv ntawm crystal oscillators ntawm cov khoom sib txawv, theem precision, thiab hom.

Xaus: The E {{{- phau ntawv sau npe yog ib qho kev thov nrog ntau yam thiab siab yuav tsum rau cov crystal oscillators. To taub nws cov kev cai tshwj xeeb ntawm txhua tus module rau crystal oscillator (pob, zaus, cov ntsiab lus tseem ceeb) yog tus yuam sij. Tsom ntsoov rau ob lub siab - tus nqi thiab siab {4 4} Cov khoom lag luam zoo, yuav pab hangjing hangjing zoo qhib kev ua lag luam. Kev them nyiaj ze rau miniaturization (2520, 1612) thiab siab precision, siab ruaj khov yuav yog ib tug qauv hauv kev siv cov lead ua oscillators!