An area efficient digital amplitude modulator in 90nm CMOS

@article{Chironi2010AnAE,
  title={An area efficient digital amplitude modulator in 90nm CMOS},
  author={Vincenzo Chironi and Bj{\"o}rn Debaillie and Andrea Baschirotto and Jan Craninckx and Mark Ingels},
  journal={Proceedings of 2010 IEEE International Symposium on Circuits and Systems},
  year={2010},
  pages={2219-2222}
}
This paper presents a digital amplitude modulator (DAM) for polar transmitter in 90 nm CMOS technology. It consists of 255 basic cells digitally activated by an 8-bit amplitude code to shape a non-constant envelope RF output. To reduce the aliases due to the discrete-time to continuous-time conversion a 2-fold interpolation has been implemented. It reaches… CONTINUE READING