How do I choose the right 32.768 Khz quartz for the ESP32-WROVER-IE?
Posted: Sun Oct 01, 2023 9:17 pm
Hello guys, I need some help for choosing the right 32.768 Khz quartz for the ESP32-WROVER-IE RTC clock.
On mouser, I selected a package of 3.2 x 1.5 which seems to be one of the most used packages. I noticed that there are many variations in the characteristics including the ESR resistance, that I chose < = 70 kOhm, while the load capacity can be of different values: from 6 pF to 12.5 pF.
I'm aware that the crystal can be chosen with different capacity values, that the lowest load capacity is the one with the greatest energy saving. However, the piece of information I'm really interested in is the power required. It could be 0.1 up to 1 uW.
I can leave you the mouser parametric search link. I'd be grateful if you could guide me.
https://www.mouser.it/c/passive-compone ... %2F%20Case
Thank you in advance for your help
On mouser, I selected a package of 3.2 x 1.5 which seems to be one of the most used packages. I noticed that there are many variations in the characteristics including the ESR resistance, that I chose < = 70 kOhm, while the load capacity can be of different values: from 6 pF to 12.5 pF.
I'm aware that the crystal can be chosen with different capacity values, that the lowest load capacity is the one with the greatest energy saving. However, the piece of information I'm really interested in is the power required. It could be 0.1 up to 1 uW.
I can leave you the mouser parametric search link. I'd be grateful if you could guide me.
https://www.mouser.it/c/passive-compone ... %2F%20Case
Thank you in advance for your help