Other Parts Discussed in Thread: PLLATINUMSIM-SW
Our customer is using the LMK05318BEVM and they have change the 48.0048-MHz onboard crystal oscillator to 32.768 MHz and observed degradation of about 10dB in phase noise. How the crystal frequency affects phase noise? What are the requirements on the crystal oscillators so that phase noise is not degraded? Their application requires low phase noise 100MHz and 140MHz signals and they need to vary the crystal oscillators between 12 to 48 MHz without phase noise degradation.