Hello everyone,
I need help with something,
I am designing an antenna for MFRC522 and i am following AN1445 see attachments,
in page 18 of 65, the application note recommends using a low capacitance probe (<2pf) in order to measure a parameter in the receiving circuit.
i found the following low capacitance probe to use it with my oscilloscope, but it is (2pf) typical
https://www.picotech.com/accessories/passive-oscilloscope-probes/1.5-ghz-scope-probe-bnc
however, there is another low capacitance probe (0.3 pf), but the cost is relatively higher,
If i use the 2pf probe, will that still comply with An1445, if not, could any one suggest a better choice,
Thank in advance,
ATarek
Solved! Go to Solution.
Hi Ahmed,
>>will that still comply with An1445, if not, could any one suggest a better choice
No, it will not.
Please use low capacitance probe that capacitance is less than 2pF !
Have a nice day!
TIC weidong
Hi Ahmed,
>>will that still comply with An1445, if not, could any one suggest a better choice
No, it will not.
Please use low capacitance probe that capacitance is less than 2pF !
Have a nice day!
TIC weidong