32.768kHz Kristali Oscillateurs ka baarakɛcogo koɲɛw sɛgɛsɛgɛli
32.768kHz kristalɛ-yɛrɛyɛrɛw bɛ Kɛ kosɛbɛ ɛntɛrinɛti-minɛnw na minnu bɛ waati-dafalen walima -fɛrɛnkan-waati dɔgɔman de wajibiya k’a sababu Kɛ u ka tiɲɛni ka bon, u fanga dɔgɔyali, ani u ka fɔcogo sabatili. Ninnu ye baarakɛcogo misali damadɔw ye minnu bɛ kɛ cogoya la:
1. Tiɲɛ-Waati wagati (RTC) Module
Baara kɛcogo minnu bɛ kɛ:
Waati sɛbɛnni n’u ka ɲɔgɔndan kɛli ɛntɛrinɛti minɛnw na, i n’a fɔ mɛtɛrɛ hakilitigiw, IoT minɛnw, sèrwɛri kartiw, mobili ɛntɛrinɛti, a ɲɔgɔnnaw.
Baarakunda:
32.768kHz ye RTC moduluw ka frequency standard ye. Frequency division kɔfɛ (15-stage binary division fɛ: 215=32768), o ye 1Hz tigitigi ye, min bɛ se ka pulse signal filanan boli k’a ɲɛsin a ma.
Ko minnu kɛra:
Smart watch: A bɛ waati jiracogo mara fanga dɔgɔyalen-cogo la; RTC dɔrɔn de bɛ baara kɛ ni CPU kunba bɛ sunɔgɔ cogo la.
Server motherboard: A bɛ waati taamasiyɛnw sɛbɛn ko kɛlenw sɛbɛnw kama; bɛ waati mara warijɛ selilɛri batiri fɛ hali ni kuran tiɲɛna.
2. MCU Sisεmεtiw minnu fanga ka dɔgɔ-
Baara kɛcogo minnu bɛ kɛ:
Batiri-minɛn minnu bɛ baara kɛ ni batiri ye (misali la, sensɛri node, yɔrɔjan kunnafonidilanw minnu tɛ fili).
Baarakunda:
A bɛ baara kɛ i n’a fɔ teliya dɔgɔman-waatibɔlan sɔrɔyɔrɔ ye mikrokontrɔla (MCU) kama walasa ka dɔ bɔ fanga tacogo la jɔli cogo la. Misali la, STM32 seriyali MCUw ka LSE (Low-Speed External Clock) cogoya.
Ko minnu kɛra:
Funteni ni nɛnɛ jateminɛnan : A bɛ kunun miniti 10 o miniti 10 walasa ka kunnafoniw lajɛ; bɛ a jigi da 32,768kHz kristalɛ wulilan kan walasa ka waati tɔ kɛ, ni fanga tacogo ka dɔgɔn i n’a fɔ μA hakɛ.
3. Mɔgɔw ka ɛntɛrinɛti fɛnw
Baara kɛcogo minnu bɛ kɛ:
Telefɔni selilɛriw, tablɛtiw, kamera digitɛriw, a ɲɔgɔnnaw.
Baarakunda:
A bɛ waati dɛmɛnan di sistɛmu kunba ma walasa waati baarakɛcogo jɔnjɔnw ka sabati hali ni kristalɛ jiginni kunba fagara.
Ko minnu kɛra:
Smartphone: A bɛ waati mara a dabilalen kɔfɛ; kun t’a la ka waati lasegin ni kuran bɛ a la.
4. Mobiliw ka ɛntɛrinɛti
Baara kɛcogo minnu bɛ kɛ:
In-mobili kunnafonidilanw, minɛnw pannew, ECUw (Engine Control Units).
Baarakunda:
A bɛ kɛ waati jatebɔlan ye ko kɛlenw sɛbɛnni ni filiw sɛgɛsɛgɛli kama, walima i n’a fɔ waati dɛmɛnan CAN bisi kumaɲɔgɔnya kama.
Ko minnu kɛra:
Bololabaara sɛbɛnfura : A bɛ kasaara waati tigitigi sɛbɛn ka ɲɛ (ni fili bɛ ±20ppm kɔnɔ).
5. Furakɛcogo minɛnw
Baara kɛcogo minnu bɛ kɛ:
Furakɛminɛn minnu bɛ se ka ta (misali la, joli sukaro hakɛ jateminɛnanw, dusukun jateminɛnanw).
Baarakunda:
A b’a lajɛ ko minɛn bɛ se ka kunnafoniw lajɛ tuma ni tuma walima ka alarmaw lawuli hali ni fanga dɔgɔyalen-cogo la.
Ko minnu kɛra:
Dusukun tantannikɛlan : A bɛ a jigi da 32,768kHz kristalɛ wulilan sabatili kan walasa ka dusukun tantanni cɛmancɛw kɛcogo ɲuman sabati.
6. Industriw ka Kɔrɔsili
Baara kɛcogo minnu bɛ kɛ:
PLCw (Programmable Logic Controllers), izini sensɛriw.
Baarakunda:
A bɛ minɛn caman waatiw kɛ ɲɔgɔn fɛ walima ka baarakɛcogo sɛbɛnw sɛbɛn.
Ko minnu kɛra:
Otomatiki baarakɛcogo : Sensɔrɔlan caman bɛ kunnafoniw bilali waatiw kɛ ɲɔgɔn fɛ 32,768kHz waati fɛ.
7. Jateminɛ minnu bɛ kɛ dilancogo la
Load Capacitance Matching: Aw bɛ kɛnɛma capacitance (a ka c’a la 6~12pF) ladilan ka kɛɲɛ ni kristalɛ oscillateur specifications ye; n’o tɛ, frequency deviation bɛ se ka kɛ.
PCB Labɛncogo : Aw bɛ kristalɛ oscillateur bila IC la ka surunya cogo min na; baara kɛ ni taamasiyɛn surunw ye ani ka i yɛrɛ tanga taamasiyɛnw tiɲɛni ma minnu ka ca -.
Funteni nɔfɛko : Walasa ka funteni baara ka bon-(-40℃~85℃), aw bɛ kristalɛ jiginnikɛlan dɔ sugandi min ka ɲi kosɛbɛ (misali la, ±5ppm).
8. Ko minnu bɛ kɛ tuma bɛɛ
Ni a ma se ka wuli: A bɛ se ka kɛ sababu ye ka a sababu kɛ capacitance (kapasitansi) bɛnbaliya ye, ka a sababu kɛ cristal oscillateur (yɛrɛyɛrɛli) tiɲɛnen ye, walima ka a sababu kɛ PCB nɔgɔli ye.
Frequency Deviation: Aw bɛ doni capacitance walima cristal oscillateur kɔrɔbayali lajɛ.
32,768kHz kristalɛ-yɛrɛyɛrɛw waleyali hakili la, minɛnw dannaya n’u fanga dɔgɔyali hakɛ bɛ se ka ɲɛ kosɛbɛ.
