A quad-band low power single chip direct conversion CMOS transceiver with ΣΔ-modulation loop for GSM.
Edmund GötzHans KrobelGunter MarzingerBernd MemmlerChristian MuenkerBurkhard NeurauterDirk RomerJorn RubachWerner SchelmbauerMarkus ScholzMartin SimonUlrich SteinackerClaus StogerPublished in: ESSCIRC (2003)