Signal Chain Fidelity Recommendations for Effective LTE Digital Pre-Distortion
Digital Pre-Distortion (DPD) is a powerful digital signal processing algorithm used in contemporary wireless base transceiver stations (BTS) for linearizing the transfer function of radio frequency power amplifiers (RF PAs). DPD processing improves Adjacent Channel Leakage Ratio (ACLR, a key compliance specification in worldwide communications standards), minimizes the Error Vector Magnitude (EVM), and improves RF PA cost and power efficiency, an important design goal as affordable "green" industrial equipment gains market traction. Read this paper to learn how NXP is impacting the market and show smart choices for effective designs.
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