Patent ID: 9258156
Filing Date: 2016-02-09
CPC Classification: H03F,H03M,H04L

Claim Text:
1. A digital predistortion circuit comprising: digital interface circuitry configured to receive a digital input signal having a signal bandwidth (BW) centered about a frequency f digital predistortion circuitry configured to generate a digital correction signal based at least in part on the digital input signal; one or more first signal transmission paths configured to transmit the digital transmission signal and including one or more first digital-to-analog converters (DACs) configured to convert the digital transmission signal to an analog transmission signal, operation of the one or more first DACs being substantially centered about f one or more second signal transmission paths configured to transmit the digital correction signal, the one or more second signal transmission paths being separate from the one or more first signal transmission paths and including one or more second DACs configured to convert the digital correction signal to an analog correction signal, operation of the one or more second DACs being substantially centered about 0 Hz.