i have an ISM band transmitter device based on the MAX41460 chip. It expects a 16Mhz, 12 pF crystal.
Switched from set A of parts:
- crystal: https://www.tme.eu/ro/en/details/16.00m-smdxt224/smd-quartz-crystals/yic/
- PCB antenna feed inductor: https://www.tme.eu/ro/details/nl03jtcr15/inductoare-smd-0603/viking/
To set B of parts:
- crystal: https://eu.mouser.com/ProductDetail/ECS/ECS-160-12-33-AGN-TR3
- PCB antenna feed inductor: https://www.tme.eu/ro/details/lqw18anr15g00d/inductoare-smd-0603/murata/
With same everything else, i am seeing a frequency difference of about 6 kHz at 433.92 MHz, OOK, room temperature. Difference seen via SDR.
What are the causes for this difference, and what do I need to be more careful about when swapping these two parts ?
Thank you
Switched from set A of parts:
- crystal: https://www.tme.eu/ro/en/details/16.00m-smdxt224/smd-quartz-crystals/yic/
- PCB antenna feed inductor: https://www.tme.eu/ro/details/nl03jtcr15/inductoare-smd-0603/viking/
To set B of parts:
- crystal: https://eu.mouser.com/ProductDetail/ECS/ECS-160-12-33-AGN-TR3
- PCB antenna feed inductor: https://www.tme.eu/ro/details/lqw18anr15g00d/inductoare-smd-0603/murata/
With same everything else, i am seeing a frequency difference of about 6 kHz at 433.92 MHz, OOK, room temperature. Difference seen via SDR.
What are the causes for this difference, and what do I need to be more careful about when swapping these two parts ?
Thank you