Title :
A 130nm CMOS direct conversion transmitter for WCDMA
Author :
Li, Xin ; Fu, Jian ; Huang, Yumei ; Hong, Zhiliang
Author_Institution :
State Key Lab. of ASIC & Syst., Fudan Univ., Shanghai, China
Abstract :
A highly integrated 0.13um CMOS direct conversion transmitter front-end for wide-band code division multiple access (WCDMA) is presented. The transmitter delivers +6.8dBm output power while consuming 39mA. The overall gain can be programmed in 6dB steps over a 66dB range with 0.1dB accuracy. The transmitter front-end achieves an OIP3 with +19.2dBm, an error vector magnitude of 3.7%, and an adjacent channel leakage ratio of -44dBc at +6.5dBm output. The image rejection ratio is less than -47dBc in the whole output range.
Keywords :
CMOS integrated circuits; code division multiple access; radiofrequency integrated circuits; transmitters; CMOS direct conversion transmitter front-end; adjacent channel leakage ratio; current 39 mA; error vector magnitude; image rejection ratio; size 130 nm; wideband code division multiple access; Driver circuits; Linearity; Multiaccess communication; Power amplifiers; Power generation; Spread spectrum communication; Transmitters;
Conference_Titel :
Solid-State and Integrated Circuit Technology (ICSICT), 2010 10th IEEE International Conference on
Conference_Location :
Shanghai
Print_ISBN :
978-1-4244-5797-7
DOI :
10.1109/ICSICT.2010.5667373
