Title
A Sub-6-Ghz 5g New Radio Rf Transceiver Supporting En-Dc With 3.15-Gb/S Dl And 1.27-Gb/S Ul In 14-Nm Finfet Cmos
Abstract
The world's first single-chip RF transceiver to support 5G sub-6-GHz new radio (NR) and long-term evolution (LTE) E-UTRA New Radio-Dual Connectivity (EN-DC) in 14-nm FinFET CMOS technology is presented. The single-chip transceiver integrates identical primary and diversity receivers ( RXs) with seven pipelines for supporting four inter-band carrier aggregation (CA) with three 4 x 4 MIMO, two independent transmitter (TX) chains, eight frequency synthesizers for RX and TX, and on-chip digitally controlled crystal oscillator (DCXO) to reduce the phase noise and bill of material (BOM) cost. The receiver features 12 single-ended low-noise amplifiers (LNAs) with wideband characteristics. With the help of the proposed pipeline structure and frequency-band switchable transformer, the die size can be reduced despite covering the whole frequency range from 2G to sub-6-GHz 5G NR. It achieves the noise figure (NF) from 6.5 to 9.3 dB, +3-dBm out-of-band (OOB) IIP3, more than +70-dBm OOB IIP2 after calibration. For the transmitter, low RX-band noise and harmonic suppression technique are applied to support surface acoustic wave (SAW)-less architecture, and the bandwidth control of the baseband filter is implemented for the digital pre-distortion (DPD) operation of 100-MHz BW in NR transmit data. The measured error vector magnitudes (EVMs) in 4G and 5G bands of n79 are -39.5 dB at +4-dBm output power and -33.9 dB at +3.06-dBm output power, respectively, and the measured RX-band noise of 2G is -163 dBc at 20-MHz offset. The RX consumes 18 mW at LTE 1-CA mode and the TX consumes 350 mW at n79.
Year
DOI
Venue
2019
10.1109/JSSC.2019.2938132
IEEE JOURNAL OF SOLID-STATE CIRCUITS
Keywords
DocType
Volume
5G, cellular RF transceiver, E-UTRA New Radio-Dual Connectivity (EN-DC), long-term evolution (LTE), surface acoustic wave (SAW)-less, sub-6-GHz new radio (NR)
Journal
54
Issue
ISSN
Citations 
12
0018-9200
0
PageRank 
References 
Authors
0.34
0
21
Name
Order
Citations
PageRank
Jongwoo Lee110613.95
Kiyong Son200.34
Hyungsun Lim300.34
Daechul Jeong400.68
Ilyong Jong500.34
Sanghyun Baek600.34
Jae Hoon Lee717637.92
Ronghua Ni801.35
Yongrong Zuo901.35
Chih-Wei Yao10143.60
Seung-Chan Heo1182.65
Sangwook Han1202.03
Thomas Byunghak Cho13218.93
Inyup Kang1430432.39
Joonhee Lee1501.69
byoungjoong kang1611.45
Jeongyeol Bae1701.01
Jaehyuk Jang1801.01
Seunghyun Oh1900.34
Ji-Soo Chang2000.34
Sanghoon Kang2100.34