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Alexander Chemeris alexander.chemeris at gmail.comOn Thu, Jul 26, 2012 at 4:37 PM, Alexander Chemeris <alexander.chemeris at gmail.com> wrote: > > On Thu, Jul 26, 2012 at 3:31 PM, Srdjan Milenkovic > <s.milenkovic at limemicro.com> wrote: > > Combining Thomas's idea of DC recalibration and, if necessary, making > > look > > up table for IQ phase error correction vs temperature should put us in > > good > > position to meet the specs. > > Well, AFAIK, LMS6002D doesn't have a temperature sensor built in and > this means we have to install an external one, which again increase > BoM cost. Is that's how this issue is solved by your other customers? > I wonder is there a way to solve this without introducing a > temperature compensation loop. Let me clarify - DC offset re-calibration is (more or less) fine in lab setup, but it's expensive to manufacture if we have to add temperature sensors and put every unit into a temperature camera for calibration. -- Regards, Alexander Chemeris. CEO, Fairwaves LLC / ООО УмРадио http://fairwaves.ru