I'm planning on making an audio system that will be used in vibration-inducing environments (roller coaster rides that can reach up to 5/6G peaks and public transportation systems). One of its components is an oversampling DAC IC (the TI PCM1781), that requires an external 11.2896 Mhz clock signal to operate.
I was originally planning on using a crystal oscillator as my clock source, but then I learned that they're quite sensitive to G-forces and vibrations, which can even drastically and irreversibly change their output frequency in some extreme cases.
So I then learned about MEMS oscillators, which are less sensitive to vibrations. The main problem with them here is that they output quite a lot of phase noise, which I've been strongly warned about, since my system is an audio oriented one.
I'm therefore stuck with this question : should I feed my DAC with a crystal oscillator or a MEMS oscillator, given the harsh vibrating environment it will function in and the drawbacks of each oscillator ?