Title :
9.1 A 13mm2 40nm multiband GSM/EDGE/HSPA+/TDSCDMA/LTE transceiver
Author :
Georgantas, Theodore ; Vavelidis, Kostis ; Haralabidis, Nikos ; Bouras, Stamatis ; Vassiliou, Iason ; Kapnistis, Charalampos ; Kokolakis, Yiannis ; Peyravi, Hamed ; Theodoratos, Gerasimos ; Vryssas, Konstantinos ; Kanakaris, Nikos ; Kokozidis, Christos ;
Author_Institution :
Broadcom, Athens, Greece
Abstract :
To support increased device functionality and higher data-rates in LTE-enabled systems, while improving user experience and usage time, there is a need to reduce RFIC size and power consumption without degrading performance, while maintaining backward compatibility with legacy 2G/3G systems [1]. This paper introduces a 13mm2, 40nm CMOS 2G/HSPA+/TDSCDMA/UE cat. 4 transceiver that consumes 36/65mA battery-referenced current in 3G/LTE20 modes (B1, -50dBm TX, -60dBm RX). This is achieved in part by employing a multiport single-core LNA with a multitap inductor and a current-mode-driven single-core transmit mixer. Baseband-assisted calibration techniques help achieve <;1.2% RX EVM in LTE20 and >60dBm IIP2 in all bands. To save on platform area and cost, the RFIC supports single-ended LNAs, 32kHz clock generation, and free-running XTAL operation. TX SAW filters are not required.
Keywords :
3G mobile communication; CMOS integrated circuits; Long Term Evolution; calibration; cellular radio; code division multiple access; low noise amplifiers; mixers (circuits); radio transceivers; space division multiple access; time division multiple access; 40nm CMOS 2G transceiver; 40nm CMOS HSPA+ transceiver; 40nm CMOS TDSCDMA transceiver; 40nm CMOS UE cat. 4 transceiver; EDGE transceiver; GSM transceiver; LTE transceiver; LTE-enabled systems; LTE20; RFIC size reduction; RX EVM; backward compatibility; baseband-assisted calibration techniques; clock generation; current-mode-driven single-core transmit mixer; data-rates; device functionality; free-running XTAL operation; frequency 32 kHz; legacy 2G systems; legacy 3G systems; multiport single-core LNA; multitap inductor; power consumption reduction; usage time improvement; user experience improvement; Gain control; Mixers; Noise; Radio frequency; Radiofrequency integrated circuits; Synthesizers; Transceivers;
Conference_Titel :
Solid- State Circuits Conference - (ISSCC), 2015 IEEE International
Conference_Location :
San Francisco, CA
Print_ISBN :
978-1-4799-6223-5
DOI :
10.1109/ISSCC.2015.7062975
