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LTC5531

Contains AI Generated Content
Category: Hardware
Product Number: LTC5531

I tried to simulate the output voltage of the LTC5531 using LTspice, but I couldn't find any formulas or detailed input power vs. output voltage data in the datasheet.

  • If you want to develop an simple equation for the transfer function of the device in the form Vout (dc) = Vin(ac)xSlope(V/V) + Intercept, do the following. 

    1. Pick a curve in the datasheet that you want to reproduce. (e.g. 300 MHz, Vos=0V). Pick two input levels (e.g. -4dBm and +4 dBm) and the corresponding output voltages (0.9V and 2.4V).
    2. Convert the dBm values to rms voltage.
    3. Calculate the slope ((Vout2-Vout1/(Vin2-Vin1)).
    4. Calculate the intercept = Vout2-(Vin2/Slope).
    5. Now you have an equation for the operation of the part that you can test against simulation.. 

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