The crystal oscillator's power supply should be filtered in accordance with the oscillator manufacturer's recommended method to filter power supply noise. In the case of an OCXO, local bulk capacitors must be provisioned large enough to handle changes in current due to its internal heating unit turning on and off. The use of a dedicated power supply regulator may be required to handle the warm-up current of the OCXO. Refer to application note AN-807 for more details. For other questions not addressed by the Knowledge Base, please submit a technical support request.


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AN-807 Recommended Crystal Oscillators for NetSynchro WAN PLL Application Note PDF 77 KB