A 2-GHz carrier leakage calibrated direct-conversion WCDMA transmitter in 0.13-/spl mu/m CMOS

A highly integrated 2-GHz, 0.13-/spl mu/m CMOS direct-conversion transmitter for wide-band code division multiple access (WCDMA) is described. Different circuit and calibration techniques are presented that successfully suppress the carrier leakage and enable the direct-upconversion architecture to meet all WCDMA specifications. The transmitter delivers +2… CONTINUE READING