4 Layer FR4 ENIG Impedance Control PCB
PCB Control Impedance
A cikin yanayin watsa siginar sigina mai girma, ƙarfin sarrafawa yana taimakawa don tabbatar da cewa siginar ba ta lalacewa sosai yayin watsawa.Ainihin, impedance mai sarrafawa yana nufin madaidaicin kayan kaddarorin na substrate zuwa halaye na layin layi/dielectric Layer don tabbatar da cewa ƙimar siginar layin yana cikin juriyar ƙimar tunani.PCBs masu sarrafa impedance suna ba da ingantaccen ingantaccen halayen mitoci masu tsayi.
Aikace-aikace na PCB Control Impedance
Akwatin Intanet, TV, wasan bidiyo, kyamarar dijital, GPS
Analog da dijital sadarwa
Kwamfutoci, Allunan, wayoyin hannu
sarrafa siginar bidiyo
Motoci iko module
Dangantaka Tsakanin Abubuwan Cigaban Halaye
Daga hangen nesa na masana'antar PCB, mahimman abubuwan da suka shafi impedance sune kamar haka:
- Fadin layi (W),impedance yana raguwa tare da haɓakar layin layi.
- Nisan layi (s),impedance yana ƙaruwa tare da karuwar nisa.
- Kaurin layi (T),impedance yana raguwa tare da karuwar kauri na layi.
- Dielectric kauri (H),mafi girma da dielectric kauri, mafi girma da impedance.
- Dielectric akai-akai (DK),mafi girma da dielectric akai-akai, ƙarami da impedance.