Mixer (Modulator, Frequency Multiplier whatever)

[kent]

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!

 

[berkeman]

Mini-Circuits is a great resource for mixers.

http://www.minicircuits.com/products/fm_sm_main.html

Use the selector guides on that page to figure out what you want. Probably Digikey or Mouser carry some of the Mini-Circuits products.