https://community.nxp.com/t5/NFC/MFRC522-TX1-and-TX2-Impedance-Matching/m-p/952204#M5980 <HTML><HEAD></HEAD><BODY><P>Hello,</P><P></P><P>As mentioned in the case, the matching has to be done for the antenna values, and&nbsp; the distances between components in the matching circuit shall be as short as possible.</P><P></P><P>Regards,</P><P>Ivan.</P></BODY></HTML> Tue, 16 Jul 2019 21:11:58 GMT IvanRuiz 2019-07-16T21:11:58Z https://community.nxp.com/t5/NFC/MFRC522-TX1-and-TX2-Impedance-Matching/m-p/952203#M5979 <HTML><HEAD></HEAD><BODY><P>Hi guys,</P><P></P><P>I am designing a RFID Module using MFRC522 chip. So while designing the layout of the board, I wanted to confirm the impedance matching to be performed on TX1 and Tx2 lines . I want my Rmatch to be 50 Ohms. Then do I need both TX1 and Tx2 traces to be 50 Ohms single endedly or should the differential impedance between them be 50 ? I think it is differential but still I would like it confirmed.</P><P></P><P>Best,</P><P>Soumya</P></BODY></HTML> Mon, 08 Jul 2019 10:50:16 GMT https://community.nxp.com/t5/NFC/MFRC522-TX1-and-TX2-Impedance-Matching/m-p/952203#M5979 spanda 2019-07-08T10:50:16Z https://community.nxp.com/t5/NFC/MFRC522-TX1-and-TX2-Impedance-Matching/m-p/952204#M5980 <HTML><HEAD></HEAD><BODY><P>Hello,</P><P></P><P>As mentioned in the case, the matching has to be done for the antenna values, and&nbsp; the distances between components in the matching circuit shall be as short as possible.</P><P></P><P>Regards,</P><P>Ivan.</P></BODY></HTML> Tue, 16 Jul 2019 21:11:58 GMT https://community.nxp.com/t5/NFC/MFRC522-TX1-and-TX2-Impedance-Matching/m-p/952204#M5980 IvanRuiz 2019-07-16T21:11:58Z