Hello,
I'm looking to use the PCA9306 on a board that will be connected to the I2C master on the VREF2 side through a 4.5 m cable. I’m not sure of the exact capacitance of the cable yet but if it exceeds the 400 pF I2C spec, what kind of behavior will the PCA9306 exhibit? It doesn’t seem to have any one-shot accelerators in the chip, from which I’ve seen oscillations with high output capacitances. Would I just see a slower edge and be unable to run the I2C signal at a high rate? We are running our I2C at 100 kHz.
Thanks,
-Michael