Anybody have experience/recommend an extremely linear double balanced mixer? DRIVE around 0+ dBm: prefer unbal single drive, but can live with bal drive. 0.1MHz < fc < 100MHz MODULATION 0+dBm prefer unbal modulation, but can live with bal drive. also can live with low end of 10kHz instead of DC DC < fm < 100kHz Need to create a lower SSB system WITH suppressed carrier, so linearity is important. Of course need the reverse, 'receiver' function, too, so component should not just be labeled "upconverter", or such. So far have identified Linear, Analog Devices, and TI as potential suppliers, I historically shy away from Maxim. But after sitting an hour at those websites have given up doing any effective searches there. Also, there might be some serious contenders who have real 'knock your socks off' niche components for this application.

The ham radio technology developers have been exploring very linear and wide dynamic range mixers for years, you should start your search there. Google for 'Tayloe mixer'. It seems that you need linearity only for the signal path, and not for the carrier path, so that the mixer can be a switching type run at the carrier rate. Your required baseband width is a serious challenge, if you want SSB. Please remember that a balanced mixer generates double-sideband suppressed-carrier AM, not SSB. -- Tauno Voipio

Double Balanced Mixer - Very Linear ?

Apr 02, 2014 143 Replies

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John Larkin 12 years ago

I did a little work with them, when they were still in the smart-meter business, before Ricochet. Worked with Barron and Dilworth (sp?) and some engineers. I offered to save them $10 per meter if they would pay me $1 per. They said "no, but how would you like to be a consultant?"

Well, Metricom is dead and I'm not.

John Larkin Highland Technology Inc www.highlandtechnology.com jlarkin at highlandtechnology dot com Precision electronic instrumentation

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Simon S Aysdie 12 years ago

Yes, that is the one. I lived in Santa Cruz and drove over Hy 17 everyday, getting off on the University exit (Los Gatos). Loved that little deal. The move to downtown SJ at 333 Julian St. was the beginning of the end. Neat building tho. lol

Sure, I know Bob. Maybe I should say I did know him, as I haven't talked to him for at least 10 years. He had a little vacation place in Live Oak.

Those were good old days. I really liked that job. Too bad defeat was snatched from the jaws of victory.

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RobertMacy 12 years ago

true.

Still in Santa Cruz? Know Jeff Liebermann over there?

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Simon S Aysdie 12 years ago

No, left in 2001 after the bubble burst. (Lived there from '83-'01)

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