Power of Burst waveform going through an amplifier

[choppie808]

Hi all,


How would I calculate theoretical power of:

1Vpp
1Mhz (sinewave)
200 cycles
100ms interval
50Ω load

This waveform is going into a 55db amplifier.

Any help would be great.

Thanks,
Mark

 

[Carl Pugh]

1Vpp continuous into 50 ohm is 2.5 milliwatt.
2.5 milliwatt for 200 cycles at 1 MHz is 0.5 x 10^-6 joule.
0.5 x 10^-6 joule 10 times per second is 5x10^-6 joule/second or 5x10^-6 watt.
(5 microwatt)