PSRR measurement of Amplifier

[gouzou]

Hi

I have a bandpass amplifier (300khz-300mhz) and want to measure the psrr specification.
I can use an HP function generator, producing AC fluctuations over a dc offset set at nominal dc supply voltage (+3.3V).
What should I use as input and what should i measure at the output?

 

[BigBoss]

Generate a fluctuation over DC Power Supply and change this impacting signal frequency from very low frequencies to few hundred MHz and observe this signal at the output with a Spectrum Analyzer.The difference between what you read on the SA as dBV and peak amplitude(dBV) of your jamming signal on the supply will give you PSRR as dB.

 

[gouzou]

1) The SA displays rms. I have then to transform the display to peak amplitude for proper ratio computation.
2) Input?
3) Gain=0db?