ADF7030-1 designs: TCXO vs. XTAL

Hi Ping,

From UG-957 (ADF7030-1 Hardware Reference Manual),

"Generally a TCXO is used for applications that demand high RF frequency accuracy, such as narrow-band systems where the RF channel width is less than 25 kHz."

TCXO is more accurate than XTAL however, it has higher power consumption since it requires a supply and thus, power needs to be removed from it when the ADF7030-1 is brought to sleep to achieve low power on the board.

You may look into UG-957 and UG-1002 for more details

Regards,

Aldrich

Hi Ping,

There's a lot of resources in the internet regarding XTAL vs TCXO such as:

https://www.analog.com/en/education/education-library/faqs/faq-should-i-use-tcxo-or-xtal-as-reference-clock.html

https://portal.u-blox.com/s/question/0D52p00008HKCDeCAP/what-is-the-difference-between-tcxo-and-crystal-eg-environments

Bottomline is, depending on how much you can relax your RF specs, antenna design, or design considerations(i.e. environment), you can use XTAL for a more cost effective option.

Regards,

Adrian

Thanks, guys. very appreciate all quick answers.

regards,

ping