A 2×2 MIMO 802.11 abgn/ac WLAN SoC with integrated T/R switch and on-chip PA delivering VHT80 256QAM 17.5dBm in 55nm CMOS

Author

Tsung-Ming Chen ; Wei-Chia Chan ; Chien-Cheng Lin ; Jui-Lin Hsu ; Wen-Kai Li ; Pi-An Wu ; Yen-Lin Huang ; Yen-Chuan Huang ; TzungChuen Tsai ; Po-Yu Chang ; Chih-Lung Chen ; Chih-Hou Tsai ; Tao-Yao Chang ; I-Ching Huang ; Wen-Hsien Chiu ; Chun-Hao Liao ; C

Author_Institution

MediaTek Inc., Hsinchu, Taiwan

fYear

2014

fDate

1-3 June 2014

Firstpage

225

Lastpage

228

Abstract

This paper describes 2×2 MIMO 802.11ac Stage 1 WiFi + BT combo SoC chip with integrated dual-band PAs, LNAs, T/R switches, as well as a power management unit. The measured RX sensitivity of OFDM54M is -77.5dBm/ -77dBm in 2.4GHz and 5GHz, respectively. With the proposed broadband TX architecture, a high output power of 17.5dBm for 802.11ac Stage 1 VHT80 256QAM was achieved, and is extendable to the upcoming 802.11ac Stage2 VHT160. The maximum throughput achieved is 580Mbps in VHT80 MCS9 two-spatial stream mode, AWGN channel, with short GI. This chip occupies 27.8mm² in 55nm 1P6M CMOS technology in which the MIMO WiFi RF and analog circuits occupies 7.7mm².

Keywords

AWGN channels; CMOS analogue integrated circuits; MIMO communication; MMIC power amplifiers; OFDM modulation; UHF power amplifiers; low noise amplifiers; quadrature amplitude modulation; system-on-chip; wireless LAN; 802.11ac satge 1 VHT80 256QAM; 802.11ac stage2 VHT160; AWGN channel; CMOS technology; LNA; MIMO 802.11 abgn WLAN SoC; MIMO 802.11 ac WLAN SoC; MIMO 802.11ac stage 1 WiFi-BT combo SoC chip; MIMO WiFi RF; OFDM54M; VHT80 MCS9 two-spatial stream mode; analog circuits; bit rate 580 Mbit/s; broadband TX architecture; frequency 2.4 GHz; frequency 5 GHz; integrated T-R switch; integrated dual-band PA; measured RX sensitivity; on-chip PA; power management unit; size 55 nm; Broadband communication; IEEE 802.11 Standards; MIMO; Radio frequency; Switches; System-on-chip; Transceivers; IEEE 802.11ac; MIMO SoC; RF SoC; WiFi;

fLanguage

English

Publisher

ieee

Conference_Titel

Radio Frequency Integrated Circuits Symposium, 2014 IEEE

Conference_Location

Tampa, FL

ISSN

1529-2517

Print_ISBN

978-1-4799-3862-9

Type

conf

DOI

10.1109/RFIC.2014.6851704

Filename

6851704