.meas ac vdbmax max vdb(5)
.meas ac v3db param='vdbmax-3'
.meas ac f3db when vdb(5)=v3db
.meas ac phsmagin find vp(5) when vdb(5)=0
.meas ac phasemargine param='180+phsmagin'
.meas ac noi3db integral innoise from=1 to=1000
.meas ac opttt param='noi3db*k1'
.meas ac opttx param='noi3db*vdbmax'
.end