does any one has experience with this ADC?
|
does any one has experience with this ADC?
|
If i refer to the datasheet, they suggest 33pF capacitor wit a 4.9152MHz crystal.
Try increasing the capacitor value first.
Steve
It's not a bug, it's a random feature.
There's no problem, only learning opportunities.
|
Do you think that the cap difference could be the cause of the ADC instability?
|
could be... i've never use this converter, i'm not on your bench, i don't see how you place it on your board (prototype or not) and unfortunately my scope probe are not long enough to reach you
could also be the supply line, wind direction or alien invasion... who knows ?
Steve
It's not a bug, it's a random feature.
There's no problem, only learning opportunities.
|
I'm trying with 33pF cap, but nothing new
|
Uhau!
I've found the problem! It isn't the AD7731, but the PIC, I've used the MSBPRE mode to read the data, changing to MSBPOST, it works very fine!!
Thanks
|
DOH! i should see it before
Even a superhero may fail
Congratulation!
Steve
It's not a bug, it's a random feature.
There's no problem, only learning opportunities.
Members who have read this thread : 0You do not have permission to view the list of names.
Posting Permissions
Bookmarks