Input signal of 1vPP @ 5Khz. With the configuration (Sinc4, OSR = 12, No clock Divider, High Speed Mode, Master clock 24Mhz) which results in 1Msps rate. The Spectral analysis incorrectly calculates 10Khz for Fi Calc(Hz). If I switch any setting, for example change OSR = 16 reducing my sampling rate to 750Ksps the Fi Calc (Hz) is correct.
I am using ADS127L11EVM-PDK version 1.1.0
Is there an updated version?
Is this a known bug with Sinc4 filer, and OSR = 12 producing incorrect spectral analysis results?
Attached is video. My input is 1vPP @5Khz. The video shows Fi Calc(Hz) changing to incorrect value with Sinc4, OSR=12. And correct with all other configurations.