4/13/17 What happens when 2 tones enter a limiting amp?

What happens when 2 tones enter a limiting amp, one at a low power level (that would be just into limiting at the output if it was the only input), and one already at the input limit. What does the output look like? I know there is lots of intermod, but what about the new relative level differences between the two tones?

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    •  Analog Employees 
    on Apr 14, 2017 7:47 PM over 3 years ago

    On behalf of John Wise.
    The answer depends on the frequency offset of the two tones, the expected output would be at the limited output and the difference would be very small.  If the frequency separation is wide, then the difference in amplitude would be within the saturated output flatness specification of the HMC7891.

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    •  Analog Employees 
    on Apr 14, 2017 7:47 PM over 3 years ago

    On behalf of John Wise.
    The answer depends on the frequency offset of the two tones, the expected output would be at the limited output and the difference would be very small.  If the frequency separation is wide, then the difference in amplitude would be within the saturated output flatness specification of the HMC7891.

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