Video: Lub teeb liab digital zoo li cas?
2024 Tus sau: Lynn Donovan | [email protected]. Kawg hloov kho: 2023-12-15 23:47
Feem ntau digital signals yuav yog ib qho ntawm ob qhov tseem ceeb -- nyiam ib 0v o5v. Timing graphs ntawm no cov cim zoo li square waves. Analog nthwv dej yog du thiab nruam, digital nthwv dej yog stepping, square, thiab discrete.
Ntawm no, hom yoj twg yog lub teeb liab digital?
Ib theem logic yog qib voltage uas sawv cev rau qhov txhais digital xeev. Cov teeb liab feem ntau hu ua square nthwv dej lub moos teeb liab . Lawv qhov tsawg kawg nkaus tus nqi yuav tsum yog 0 volts, thiab lawv qhov siab tshaj plaws yuav tsum yog 5 volts. Lawv tuaj yeem ua ntu ntu (rov ua dua) lossis tsis yog lub sijhawm.
Ib yam li ntawd, nws txhais li cas thaum lub teeb liab yog digital? Digital Signal . A cov teeb liab hais txog hluav taws xob teeb liab uas yog hloov dua siab tshiab rau hauv cov qauv ntawm cov khoom. Tsis zoo li ib qho analog teeb liab , uas yog ib qho txuas ntxiv teeb liab uas muaj cov sijhawm sib txawv, a digital signal muaj tus nqi discrete ntawm txhua qhov piv txwv.
Tsis tas li ntawd, qee qhov piv txwv ntawm cov teeb liab digital yog dab tsi?
Cov teeb liab digital tsis ua suab nrov. Piv txwv ntawm cov teeb liab analog yog Tib neeg lub suab, ntsuas kub, lub xov tooj analog thiab lwm yam. Piv txwv ntawm cov teeb liab digital yog Khoos phis tawj , Cov Xov Tooj, Cov cwj mem, thiab lwm yam.
Lub teeb liab digital ua haujlwm li cas?
Tsis zoo li ib qho analog teeb liab , uas txawv tsis tu ncua, a cov teeb liab muaj ob theem lossis xeev. Cov teeb liab hloov lossis hloov tam sim ntawd ntawm ib lub xeev mus rau lwm qhov. Cov teeb liab nrog ob theem discrete kuj raug hu ua binary teeb liab . Binary txhais tau hais tias ob-ob lub xeev lossis ob theem tsis sib xws ntawm qhov voltage.
Pom zoo:
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