AD8347: FAQ

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  • AD8347 Demodulator Reference

    Question The Base Band inputs IAIN, QAIN and detectors VDT1/VDT2 should be biased with Vref (1V). When biasing these pins from another source which is also ~1V, I see a failure in the AGC loop, it…
  • AD8347: How to use the AD8347 for demodualtion of a 100Hz to 5MHz signal

    Question 1. I need to know what is the Base Band frequency range of the AD8347 ? [AE] 60MHz. 2. My required base band frequency is 100Hz - 5MHz can I use the AD8347 for this frequency band ? [AE…
  • Only Q path used in AD8347

    Question I want to use AD8347 with its AGC function. And I wonder whether I could use AD8347 with single Q-path and AGC function. Could AD8347 work normally? Answer I would recommend you configure the…
  • The output impedance of AD8347

    Question I want to know the baseband output impedance of AD8347 which can help design the filter considering the impedance matching. And is it necessary to add an amplifier driver between the AD8347…
  • The response time of AD8347 in AGC mode

    Question I want to know the response time of the power detection function of AD8347, I hope the AGC circuit could be done within 4uS. could you provide any information about this? Answer The response…
  • What is the AGC loop settling time of the AD8347 for a pulsed RF input?

    Q. What is the AGC loop settling time of the AD8347 for a pulsed RF input? ----------------------------------------------------------------------------------------------------------------------- …

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