Nov 29 2007
13 VOLTS!?!?
I was poking around with my circuit just now and I just noticed that one node has a peak to peak swing greater than 13 volts.
There’s nothing particularly wrong with it since this node is between an inductor and a capacitor and I’m not violating any voltage breakdown rules. What concerns me is that I did not expect this and I’m starting to doubt what I’m actually taping out next week. It could be that this is perfectly normal but I just didn’t expect it. I thought the biggest peak to peak voltage swing I would see in my circuit would only be 8 volts in a place where the voltage swing should be high. But 13 volts peak to peak on a 3.3 volt supply? It’s not unheard of, but it’s nuts. I was somewhat disappointed that I wasn’t able to output more than 19dBm of power with all on-chip components, but now that I really think about it, I think I’m pushing the limits of this process pretty hard.