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Mix frequency

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0302986

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I am doing superheterodyne projects. I have 2 frequency, one is AM frequency and another is Image frequency. How can i mix this 2 frequency together. I know that it can use op amp to mix it together but what op amp should use? Can give me a useful link too? Thanks.
 
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An op amp can not be normally used as a mixer (modulator), only as an adder. A mixer requires a multiplier or other non-linear circuit. Google "RF mixer" for more info.
 
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