On Sun, Apr 29, 2012 at 11:46, Jasper Kanbier <[email protected]> wrote: > Hi, > > I am trying to do a FFT measurement on a Switched Capacitor Filter (MAX297) > with the LFRX. > > However the LFRX’s 50ohm impedance puts a high load on the filters output > which causes all sorts of problems. > > Anyone with knowledge in electronics knows how to solve this?? > > Typical load on the IC’s output should be 10kilo ohms..
You could build an opamp or transistor buffer amplifier: https://en.wikipedia.org/wiki/Buffer_amplifier Johnathan _______________________________________________ Discuss-gnuradio mailing list [email protected] https://lists.gnu.org/mailman/listinfo/discuss-gnuradio
