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.

 

[ravenprp]

Hi there,

There are actually several options for mixers that you can use for your synchronous detection circuit. One option is the ADL5350 from Analog Devices, which is a high performance mixer designed for frequency conversion applications. Another option is the HMC436 from Hittite Microwave Corporation, which is a broadband frequency multiplier and mixer. Both of these options are newer and more advanced than the LM1496 chip you mentioned.

It's always a good idea to do some research and compare different options before selecting a specific mixer for your circuit. Make sure to consider factors such as frequency range, input/output impedance, and power consumption. Also, don't hesitate to reach out to the manufacturers or consult with a professional for further guidance.

Best of luck with your project!