What is the magic constant 1.079?
Posted: Tue Oct 14, 2014 10:36 am
Hi All,
On the wiki, here:
http://wiki.redpitaya.com/index.php?tit ... de#Example
there is an example on how to modify the acquire application.
Could someone explain where the constant 1.079 that is used for the calibration of the front end results comes from?
This seems to give a weighting per bit of 131.73uV, whereas I was working with 122uV per bit. 131uV results in conversions to the correct voltage, but I don't understand where this value came from.
Thanks in advance, Stuart
On the wiki, here:
http://wiki.redpitaya.com/index.php?tit ... de#Example
there is an example on how to modify the acquire application.
Could someone explain where the constant 1.079 that is used for the calibration of the front end results comes from?
Code: Select all
float cal_fe = 1.079/8191;
Thanks in advance, Stuart