crest factor and pa backoff
As a PA designer myself, I hate the word "back-off".
Motorola used to define linear PA by PEP output power with certain
IMD level.
Somehow, the wireless industry used to talk about average power, which,
I believe, is misleading.
Suppose an Audio Power Amplifier. If you input long silence, there will be
no output, except small noise. As Audio PA can not control the content of music,
RF PA can not control modulation scheme.
No, I am not supporting the marketing buzword "PMPO".
I have seen too many cases that specify average output power without
defining PAR or even mentioning modulation scheme.