topic Re: Question about &quot;RxThreshold&quot; in CLRC663 in NFC https://community.nxp.com/t5/NFC/Question-about-quot-RxThreshold-quot-in-CLRC663/m-p/826744#M4341 <HTML><HEAD></HEAD><BODY><P>Hello,</P><P></P><P>Please see below answer from Apps team:</P><P></P><P>MinLevel&nbsp;is a dedicated Level related to your receiver Input Voltage. We do not&nbsp;provide absolute values, because they do not help you at all and they are dependent on the RX voltage level. As described in the Antenna design AN this Level is easy to find. The same for MinLevelP. There is only one way how&nbsp;both Levels are optimized and this is described in Antenna design AN.</P><P></P><P></P><P>Regards,</P><P>Ivan.&nbsp;</P></BODY></HTML> Fri, 03 Aug 2018 15:20:54 GMT IvanRuiz 2018-08-03T15:20:54Z Question about "RxThreshold" in CLRC663 https://community.nxp.com/t5/NFC/Question-about-quot-RxThreshold-quot-in-CLRC663/m-p/826743#M4340 <HTML><HEAD></HEAD><BODY><P>Hello,</P><P></P><P>Would you someone please explain about the meaning of value in "RxThreshold(0x37) - MinLevel and MinLevelP." register?</P><P></P><P>In the data sheet, just described as below.</P><P></P><P>Bit&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;|&nbsp;&nbsp;&nbsp;Symbol&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;| Description<BR />7 to 4&nbsp;&nbsp;&nbsp;|&nbsp;&nbsp;&nbsp;MinLevel&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;| Defines the MinLevel of the reception.<BR />&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Note: The MinLevel should be higher than the noise level in the system.<BR />3 to 0 &nbsp;&nbsp;&nbsp;|&nbsp;&nbsp;&nbsp;MinLevelP&nbsp;&nbsp;&nbsp;| Defines the MinLevel of the phase shift detector unit.</P><P></P><P>And I can see how to set the value in "AN11019 - CLRC663, MFRC630, MFRC631, SLRC610 Antenna Design<BR />Guide".</P><P></P><P>But, there is no description about what&nbsp;a number which can be set from 0x0 to 0xF stand for.</P><P></P><P>Thanks in advance.</P></BODY></HTML> Thu, 28 Jun 2018 08:52:08 GMT https://community.nxp.com/t5/NFC/Question-about-quot-RxThreshold-quot-in-CLRC663/m-p/826743#M4340 jylee 2018-06-28T08:52:08Z Re: Question about "RxThreshold" in CLRC663 https://community.nxp.com/t5/NFC/Question-about-quot-RxThreshold-quot-in-CLRC663/m-p/826744#M4341 <HTML><HEAD></HEAD><BODY><P>Hello,</P><P></P><P>Please see below answer from Apps team:</P><P></P><P>MinLevel&nbsp;is a dedicated Level related to your receiver Input Voltage. We do not&nbsp;provide absolute values, because they do not help you at all and they are dependent on the RX voltage level. As described in the Antenna design AN this Level is easy to find. The same for MinLevelP. There is only one way how&nbsp;both Levels are optimized and this is described in Antenna design AN.</P><P></P><P></P><P>Regards,</P><P>Ivan.&nbsp;</P></BODY></HTML> Fri, 03 Aug 2018 15:20:54 GMT https://community.nxp.com/t5/NFC/Question-about-quot-RxThreshold-quot-in-CLRC663/m-p/826744#M4341 IvanRuiz 2018-08-03T15:20:54Z