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mrfc630 lpcd wakeup (mifare card)

Question asked by hwang bora on Jan 7, 2020
Latest reply on Jun 3, 2020 by hwang bora

i developing using mfrc630 chip and reading coin mifare card. hardware board is complete.

but lpcd value is not constant.  exmple All 10 Samples are different lpcd value.

i used nxp develop board (CLEV6630b v2.0) 

this board is read well mifare card no matter rf on time

 

questions

1. It mifare card lpcd wakeup distance is influenced by mfrc630 lpcd rf on time ?

2. it mifare card lpcd wakeup distance is influenced by hardware tuning(R/L/C) ? 

else another way? 

 

 

thank you.

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