A 2×2 MIMO 802.11 b/g/n WLAN SOC in 55nm CMOS for AP/Router application

Abstract

A single-chip 2×2 MIMO 802.11 b/g/n compliant WLAN AP/Router system-on-a chip(AP/Router SOC) that integrates all RF, analog, digital PHY, MAC, CPU and 5-port Ethernet functions as well as all necessary peripheral blocks has been integrated in 55nm CMOS. To reduce rBOM and PCB design complexity, two high power CMOS PAs, LNAs, and T/R switches are integrated for the MIMO transceiver. The radio transmits 22.4 dBm CCK mask compliant power and delivers 19dBm with EVM= -30dB at HT20 and 18dBm with EVM= -30dB at HT40. CCK RX sensitivity at the shared antenna port is -99dBm at 1Mbps rate, while CCK RX sensitivity is -100dBm at the auxiliary LNA path.