Dab tsi yog daim ntawv thov ntawm multiplexer thiab demultiplexer?
Dab tsi yog daim ntawv thov ntawm multiplexer thiab demultiplexer?

Video: Dab tsi yog daim ntawv thov ntawm multiplexer thiab demultiplexer?

Video: Dab tsi yog daim ntawv thov ntawm multiplexer thiab demultiplexer?
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Anonim

Cov ntawv thov no suav nrog cov hauv qab no: Kev sib txuas lus System – Multiplexer thiab Demultiplexerboth yog siv nyob rau hauv kev sib txuas lus systems los ua cov txheej txheem ntawm cov ntaub ntawv kis tau tus mob . Ib tug De-multiplexer tau txais cov ntawv tso zis tawm los ntawm multiplexer; thiab, ntawm qhov kawg receiver, nws hloov lawv rov qab mus rau daim ntawv qub.

Hauv qhov no, kev ua haujlwm ntawm multiplexer thiab demultiplexer yog dab tsi?

Cov txheej txheem no ua rau kev sib kis tau yooj yim dua. Cov demultiplexer txais cov zis signals ntawm lub multiplexer thiab converts lawv rov qab mus rau tus thawj daim ntawv ntawm cov ntaub ntawv ntawm qhov kawg tau txais. Cov Multiplexer thiab demultiplexer ua haujlwm ua ke los ua cov txheej txheem ntawm kev xa thiab txais cov ntaub ntawv hauv kev sib txuas lus.

Ib yam li ntawd, dab tsi yog multiplexer hauv kev sib tham? Hauv kev sib txuas lus thiab computer tes hauj lwm , multiplexing (qee zaum tau cog lus rau muxing) yog ib txoj hauv kev uas ntau yam analog lossis digital signals tau muab tso ua ke rau hauv ib qho kev sib koom ua ke. Lub hom phiaj yog los qhia cov peev txheej tsawg. The Multix ua teeb liab kis tau los ntawm kev sib txuas lus xws li cable.

Tom qab ntawd, lo lus nug yog, qhov txawv ntawm multiplexer thiab demultiplexer yog dab tsi?

A multiplexer yog ib qho kev sib txuas ua ke uas muab ib qho kev tso tawm tab sis lees txais ntau cov ntaub ntawv nkag. A demultiplexer yog ib qho kev sib txuas ua ke uas siv ib qho input tab sis cov tswv yim tuaj yeem raug coj los ntawm ntau qhov kev tawm. Nws yog N rau 1 ntaus ntawv thiab yog li coj ua cov ntaub ntawv xaiv.

Dab tsi yog enables hauv multiplexer?

Nws yog feem ntau xav tau ntxiv ib qho pab (los yog strobe) input EN rau a multiplexer . Ib pab input ua tus multiplexer ua haujlwm. Thaum EN = 0, cov zis yog High-Z lossis tsawg feem ntau LOW (nyob ntawm cov cuab yeej tshwj xeeb). Thaum EN = 1, lub multiplexer ua nws txoj haujlwm nyob ntawm cov kab xaiv no.

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