Mixer (Modulator, Frequency Multiplier whatever)

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For down-converting a 20 MHz signal to 10 kHz, a suitable mixer is essential. The LM1496 is mentioned as an older option, but there are newer alternatives available. Mini-Circuits is recommended as a reliable resource for modern mixers, with selector guides to help identify the right product. Distributors like Digikey or Mouser typically stock Mini-Circuits mixers. Exploring these resources will help find a more efficient solution for the synchronous detection circuit.
kent
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Hi guys

I am now building a simple synchronous detection circuit, I have now two signal generators, one generate a 20 MHz sinusoidal signal, and the other one gives a 19.99 MHz signal. If now I want to down-convert the 20 MHz signal into a 10 kHz signal, what kind of mixer (part number) can I use to achieve this kind of task?

I have been browsing the web for a long time, but at the moment I can only find a LM1496 chip (which is pretty old), I am pretty sure there are some newer and better chips which can satisfy my need

Thank you very much for ur help!
 
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