Title :
A 0.8mm2 all-digital SAW-less polar transmitter in 65nm EDGE SoC
Author :
Mehta, Jigar ; Staszewski, Robert Bogdan ; Eliezer, O. ; Rezeq, S. ; Waheed, Khurram ; Entezari, M. ; Feygin, G. ; Vemulapalli, Smite ; Zoicas, V. ; Chih-Ming Hung ; Barton, N. ; Bashir, I. ; Maggio, Ken ; Frechette, Michel ; Meng-Chang Lee ; Wallberg, J.
Author_Institution :
Texas Instrum., Dallas, TX, USA
Abstract :
A 0.8 mm2 small-signal polar EDGE TX, part of a 65 nm CMOS SoC, incorporates a fully-digital implementation for the amplitude path meeting the strict emission mask without a SAW filter. Various RF impairments in the AM circuitry are digitally compensated, resulting in 2.5% rms EVM (high-band, HB) and over 8 dB margin with the close-in mask. The TX consumes 105 mA in HB at 1.2 V.
Keywords :
3G mobile communication; CMOS integrated circuits; cellular radio; radio transmitters; system-on-chip; telecommunication standards; CMOS SoC; EDGE SoC; all-digital SAW-less polar transmitter; amplitude path; current 105 mA; emission mask; fully digital implementation; size 65 nm; small signal polar EDGE TX; voltage 1.2 V; Amplitude modulation; Clocks; Coupling circuits; Delay; Distortion measurement; Noise level; Predistortion; Radio frequency; Routing; Transmitters;
Conference_Titel :
Solid-State Circuits Conference Digest of Technical Papers (ISSCC), 2010 IEEE International
Conference_Location :
San Francisco, CA
Print_ISBN :
978-1-4244-6033-5
DOI :
10.1109/ISSCC.2010.5434050
