Crystal (xtal) oscillator with high interference immunity

A method comprising:

• generating reference signals having a particular reference frequency that is set or determined based on characteristics of a source of the reference signals;
• and
• processing the generated reference signals, wherein the processing of the generated reference signals is based on:
• other operations and/or components associated with the source of the reference signals;
• and
• particular frequency positions relative to the particular reference frequency.

A system comprising:

• a signal source that generates reference signals having a particular reference frequency based on characteristics of the source of the reference signals;
• and
• one or more processing circuits that process the generated reference signals, based on:
• other operations and/or components of the system;
• and
• particular frequency positions relative to the particular reference frequency.