Mu zamagetsi, kuphatikiza kwaukadaulo wapamwamba komanso kapangidwe koyenera ndikofunikira.Zinthu ziwiri zofunika kwambiri pankhaniyi ndi pulse code modulation (PCM) ndi printed circuit board (PCB).PCM ndi PCB chimagwiritsidwa ntchito zosiyanasiyana zipangizo zamagetsi, ndipo aliyense ali ubwino wake ndi makhalidwe.Mu blog iyi, tigawanitsa kusiyana ndi kuthekera kwa ma PCM ndi ma PCB kuti tidziwe njira yomwe ili yabwino pazosowa zanu.
PCM (Pulse Code Modulation):
Pulse Code Modulation ndi njira ya digito yoyimira ma analogi.Imatembenuza ma sign a analogi kukhala mawonekedwe a digito ndipo imagwiritsidwa ntchito makamaka pamawu omvera monga kujambula ndi kupanga nyimbo.PCM nthawi ndi nthawi imatenga kukula kwa chitsanzo chilichonse cha siginecha ya analogi ndikuyiyimira pa digito.Njira yotsatsira iyi imatulutsanso chizindikiro choyambirira cha analogi.PCM imapereka kumveka bwino kwa mawu ndipo imadziwika chifukwa cha kukhulupirika kwake, ndikupangitsa kuti ikhale yabwino popanga makina amawu ndi zida zomwe zimafuna kumveka bwino kwa mawu.
PCB (Bungwe Losindikizidwa Lozungulira):
Ma board ozungulira osindikizidwa ndiwo maziko akuthupi a zida zamagetsi, zomwe zimapereka nsanja yolumikizirana zigawo zosiyanasiyana.PCB imakhala ndi njira zoyendetsera zomwe zimayikidwa mugawo lopanda ma conductive kuti lipereke kulumikizana kwamagetsi ndi chithandizo chamakina pazinthu zina.Ma PCB amathandizira makonzedwe ndi kulumikizana kwazinthu zosiyanasiyana zamagetsi monga resistors, capacitors ndi ma microchips.Kusinthasintha kwa mapangidwe a PCB kumalola makonzedwe ovuta a dera, kuwapangitsa kuti azigwiritsidwa ntchito kwambiri m'mafakitale osiyanasiyana monga telecommunication, ndege, ndi magetsi ogula.
Zosiyanitsa:
1. Ntchito:
PCM imayang'ana kwambiri pakukonza ma siginolo a digito kuti apereke kutulutsa kwamawu apamwamba kwambiri.Kumbali inayi, ma PCB amathandizira kuti pakhale magwiridwe antchito onse a zida zamagetsi, kuthandizira kulumikizana kwazinthu zosiyanasiyana ndikupereka kukhazikika kwadongosolo.Ngakhale ma PCM ndi gawo lofunikira kwambiri pamawu omvera, ma PCB amagwiritsidwa ntchito pafupifupi pazida zilizonse zamagetsi, kuyambira mafoni a m'manja kupita ku zida zamankhwala.
2. Kuvuta kwa mapangidwe:
PCM imaphatikizanso ma aligorivimu a mapulogalamu ndi njira zapamwamba zosinthira ma sigino.Ngakhale zimafunika ukatswiri paukadaulo wamawu ndi luso lopanga mapulogalamu kuti mukwaniritse bwino ntchito yake, ndizosavuta potengera kapangidwe ka thupi.Mosiyana ndi izi, mapangidwe a PCB amafunikira kulinganiza mosamala masanjidwe, kuyika gawo, ndi kusanthula kulumikizana kwamagetsi.Zimafunika chidziwitso chaumisiri wamagetsi ndi machitidwe opangira bwino kuti mukwaniritse zomwe mukufuna.
3. Kusinthasintha:
PCM idapangidwa makamaka kuti izikhala ndi ma audio kuti zitsimikizire kuyimira kolondola kwa mawu ndikuchepetsa kupotoza.Cholinga chake chachikulu ndikusunga kukhulupirika kwa siginecha yamawu pagawo la digito.Komano, ma PCB sakhala ndi ntchito iliyonse kapena makampani.Kusinthasintha kwawo kumawathandiza kuti azitha kusinthidwa kuti akwaniritse zofunikira za chipangizo chilichonse chamagetsi, kaya ndi choyimbira nyimbo kapena njira yolumikizirana ndi satellite.
Pomaliza:
Onse ma PCM ndi ma PCB ndi omwe amathandizira kwambiri pazamagetsi, iliyonse imagwira ntchito yapadera.PCM ndiye chisankho choyamba cha mainjiniya amawu ndi ma audiophiles amtundu wabwino wamawu.Ma PCB ndi maziko omwe makina ovuta amagetsi amamangidwira, kuwonetsetsa kulumikizana koyenera komanso kukhazikika.Ngakhale ma PCM ndi ma PCB amasiyana pa ntchito ndi kapangidwe kake, nthawi zambiri amagwiritsidwa ntchito limodzi pazida zamagetsi, kuphatikiza mphamvu zawo zapadera.
Pamapeto pake, zimatengera zofunikira za polojekiti yanu kapena zida zanu.Kumvetsetsa kusiyana ndi mawonekedwe a ma PCM ndi ma PCB kudzakuthandizani kupanga chisankho mozindikira malinga ndi zosowa zanu.Kotero kaya mukumanga hi-fi system kapena kupanga multifunctional electronic equipment, PCMs ndi PCBs ndi zida zofunika patsogolo luso.
Nthawi yotumiza: Jul-03-2023