https://community.nxp.com/t5/Other-NXP-Products/TEF8101-ADC-data-error/m-p/1254105#M10746 <P>The problem has been solved. After modifying the FPGA LVDS timing, the abrupt data no longer exists</P> Tue, 30 Mar 2021 08:01:40 GMT longfeiwang 2021-03-30T08:01:40Z https://community.nxp.com/t5/Other-NXP-Products/TEF8101-ADC-data-error/m-p/1253473#M10738 <P>I am using TEF8101 (LVDS interface),When I set the decimation rate to 1, the ADC equivalent sampling rate is 40MHZ,The ADC data (DC component 2048 has been subtracted) seems to have a lot of sudden changes(-2048\-2045...), such as the figure below.</P><P><span class="lia-inline-image-display-wrapper lia-image-align-inline" image-alt="longfeiwang_0-1617008931472.png" style="width: 400px;"><img src="https://community.nxp.com/t5/image/serverpage/image-id/140860i13FA4AE1023FD616/image-size/medium?v=v2&amp;px=400" role="button" title="longfeiwang_0-1617008931472.png" alt="longfeiwang_0-1617008931472.png" /></span></P><P>&nbsp;</P><P>If I change the decimation rate to 2 and the equivalent sampling rate is 20MHZ, the abrupt data will not exist.</P><P>Has some filtering been done in the PDC?</P><P>&nbsp;</P> Mon, 29 Mar 2021 09:12:11 GMT https://community.nxp.com/t5/Other-NXP-Products/TEF8101-ADC-data-error/m-p/1253473#M10738 longfeiwang 2021-03-29T09:12:11Z https://community.nxp.com/t5/Other-NXP-Products/TEF8101-ADC-data-error/m-p/1254093#M10745 <P>Hello,</P> <P>Could you please explain what your are intending to do?</P> <P>Decimation factor of 1 is for test purposes only, as stated in the datasheet</P> <P><span class="lia-inline-image-display-wrapper lia-image-align-inline" image-alt="petervlna_0-1617090222534.png" style="width: 400px;"><img src="https://community.nxp.com/t5/image/serverpage/image-id/140942iB8820D6A595FA75E/image-size/medium?v=v2&amp;px=400" role="button" title="petervlna_0-1617090222534.png" alt="petervlna_0-1617090222534.png" /></span></P> <P>&nbsp;</P> <P>Best regards,</P> <P>Peter</P> Tue, 30 Mar 2021 07:43:49 GMT https://community.nxp.com/t5/Other-NXP-Products/TEF8101-ADC-data-error/m-p/1254093#M10745 petervlna 2021-03-30T07:43:49Z https://community.nxp.com/t5/Other-NXP-Products/TEF8101-ADC-data-error/m-p/1254105#M10746 <P>The problem has been solved. After modifying the FPGA LVDS timing, the abrupt data no longer exists</P> Tue, 30 Mar 2021 08:01:40 GMT https://community.nxp.com/t5/Other-NXP-Products/TEF8101-ADC-data-error/m-p/1254105#M10746 longfeiwang 2021-03-30T08:01:40Z