3 pins Resonator internal capacitors value?
- Thread starter Haroen
- Start date
We assume you are asking the question so that you can use a 2 pin type resonator. However that is working the wrong way around - you should look at the 2 pin type datasheet and use the capacitors they recommend rather than just copy what is inside a particular 3 pin type.
I want to use some of my stock of 3 pins resonators with datasheet
http://www.farnell.com/datasheets/1888758.pdf?_ga=1.95461340.1593294307.1464361734
As you can see that there are several Load Capacity possible that I have laying around.
But which one to use?
Which internal caps values are used in the Picaxe Resonators 4MHz, 8MHz, 10MHz, 16MHz?
http://www.farnell.com/datasheets/1888758.pdf?_ga=1.95461340.1593294307.1464361734
As you can see that there are several Load Capacity possible that I have laying around.
But which one to use?
Which internal caps values are used in the Picaxe Resonators 4MHz, 8MHz, 10MHz, 16MHz?
The load capacity marking only really applies to 2 pin devices - as we said earlier you look at the marking and use the capacitor stated.
If it is a 3 pin device the capacitor is internal and will be correctly matched already, so it doesn't matter what it is - and that section of the datasheet doesn't apply to 3 pin devices. The devices we sell are 30 but any 3 pin device will work.
If it is a 3 pin device the capacitor is internal and will be correctly matched already, so it doesn't matter what it is - and that section of the datasheet doesn't apply to 3 pin devices. The devices we sell are 30 but any 3 pin device will work.
So 30pF in every 4MHz, 8MHz, 10MHz, 16MHz Resonator of Picaxe.
Will Picaxe resonators have a higher accuracy for programs in timing code?
fernando_g
Senior Member
Ceramic resonators are not crystals.
Whereas a crystal requires external loading capacitors, a resonator has intrinsic distributed capacitance as part of the component itself. You don't have worry about the actual value, the manufacturer has already done that to ensure optimum oscillation accuracy.
Whereas a crystal requires external loading capacitors, a resonator has intrinsic distributed capacitance as part of the component itself. You don't have worry about the actual value, the manufacturer has already done that to ensure optimum oscillation accuracy.