Re: How important is the quality of the mixer in the tinySA. #tinysa
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Probably a really dumb question but did you try the "H-Mode" mixer? Not sure what the frequency range of that topology is and it probably won't be any cheaper since it requires transformers (unless you scavenge those from some equipment like old ethernet cards) but it should give better figures, or at least that is what I read and probably misinterpreted. On Mon, 6 Jan 2020 at 18:24, <erik@...> wrote: The mixer in the tinySA is a relative expensive part and it is obvious to see if cost can be reduced by using for instance an active gilbert cell mixer such as the IAM81008. One big advantage is the active mixer will often have conversion gain (+9dB for the IAM81008) instead of a loss (about -7dB for the ADE-1) so you can save on the cost of the LNA. |
