Part Number:PGA460
Hello,
I'm wondering if there's any update on the matching daughtercard outlined in the EVM user guide (p44-45). It doesn't appear as any design file anywhere on the PGA460 page that I can see, nor is there a menu in the EVM GUI for it yet.
I have our hardware talking to the launchpad through the EVM GUI, and the reference design using the Murata closed-top 58kHz transducers (bistatic mode) works well, but I have 4 other transducer brands and frequencies to tune and I was hoping the daughtercard was available to simplify that process.
In lieu of that, is there a recommended process for tuning C_tune and R_damp? My current thought is to build a few of our boards with large steps in capacitances and test them, then note which ranges appeared to perform best, then rebuild the boards with finer steps until a match converges. Is the GUI the correct tool for this? Or is it more efficient to use an external microphone and a scope? Mostly just looking for a sanity check here.
Thanks,
Karl