ADL5902 Vout Variation vs. Supply Voltage

Document created by enash Employee on Jan 22, 2015
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Question: Can you provide any information about the variation in output voltage of ADL5902 vs. the power supply voltage.


Answer: The attached spreadsheet shows the variation in the output voltage vs. supply voltage  in terms of raw voltage change with respect to the output voltage when the supply is 5V. Two supply voltage sweeps were completed, one with an input power of -50 dBm (Fin=900 MHz) and  one with an input power of -10 dBm (Fin = 900 MHz also). A separate tab shows the equivalent change in dB (slope in V/dB is calculated using the -10 dBm and -50 dBm data at 5.0V).  As can be seen from the plots the variation is in the order of +/-1 dB as the supply voltage changes from 4.5 V to 5.5V.