Oscillator Selection for FX3 Custom Board | Cypress Semiconductor
Oscillator Selection for FX3 Custom Board
We are designing a board utilizing the FX3. I was having difficulty finding an oscillator that met the phase noise requirements and rise times.
I looked at the Fox oscillators below, but some of the phase noise points did not meet the requirements (pg 4):
Cypress USB Input clock requirements for Phase noise (Table 4 from CYUSB301X data sheet):
100 Hz offset -75 db
1 kHz offset -104 dB
10 kHz offset -120 dB
100 kHz offset -128 dB
1 MHz offset -130 dB
Are there any recommended oscillators suitable for use in 3.3V supply that anyone has successfully used?