Optimizng Power Amplifier for Pre-distortion with RF PA Linearizer (RFPAL)
This document provides guidelines for designing a power amplifier to achieve optimum performance with Maxim's radio frequency (RF) power amplifier (PA) linearizer (RFPAL) or other types of predistortion. Using RFPAL products (SC1894 and SC2200), an optimally-tuned PA can achieve up to 28dB of correction; thereby, allowing the amplifier to operate at the highest possible efficiency. Conversely, a PA which has not been optimized for operation with a linearizer could achieve little-to-no improvement in linearity and it could fail to meet the spectral requirements.
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