Title :
A Linear Uplink WCDMA Modulator with 156dBc/Hz Downlink SNR
Author :
Papadopoulos, Dimitris F G ; Huang, Qiuting
Author_Institution :
Adv. Circuit Pursuit, Zollikon
Abstract :
A linearity-boosting technique for upconversion mixers enables a 0.13mum CMOS WCDMA modulator to achieve -49dBc ACLR and -l56dBc/Hz SNR. The chip consumes 113mW from a 1.2V supply. It is suitable for SAW-filter-free TX implementations. Results show that this technique improves the mixer IIP3 by 6dB
Keywords :
CMOS analogue integrated circuits; code division multiple access; modulators; radio transmitters; 0.13 micron; 1.2 V; 113 mW; CMOS WCDMA modulator; SAW-filter-free transmitter; linear uplink WCDMA modulator; linearity-boosting technique; upconversion mixer; Baseband; Circuits; Downlink; Linearity; Multiaccess communication; Noise figure; SAW filters; Signal to noise ratio; Switches; Voltage;
Conference_Titel :
Solid-State Circuits Conference, 2007. ISSCC 2007. Digest of Technical Papers. IEEE International
Conference_Location :
San Francisco, CA
Print_ISBN :
1-4244-0853-9
Electronic_ISBN :
0193-6530
DOI :
10.1109/ISSCC.2007.373432
