SWRZ072B May 2017 – December 2020 AWR1642
40-MHz OSC CLKOUT Causing Spurs in 2D-FFT Spectrum
AWR1642 ES1.0 and AWR1642 ES2.0
Harmonics of 40 MHz from osc-clkout can be coupled onto the synthesizer and can cause low amplitude spurs in the 2D-FFT spectrum. These spurs are at fixed doppler bin, across all range bins.
For single chip usecases, where OSC CLKOUT is not used , OSC CLKOUT output can be disabled.