Hello the community,
I'm facing an issue with the PCA9306 on some products.
One eight board I investigated, I found the PCA9306 with a low impedance between clock and data input/output.
It read the datasheet many times and I thought there is a problem with our schematics:
We use it in that way:
And it seems it will be preferable to use it with the 5V on VREF2 to respect the datasheet statement saying that VREF1 must not be higher than VREF2.
I'm I right ?
What is the exact consequences with our design ? It seems it works on many products a long time (product sold since 4 years now)...
Thanks in advance for your lights.