A low-power high-performance SiGe BiCMOS 802.11a/b/g transceiver IC for cellular and Bluetooth co-existence applications

Proceedings of the 31st European Solid-State Circuits Conference, 2005. ESSCIRC 2005. Pub Date : 2005-12-05 DOI:10.1109/ESSCIR.2005.1541576

O. Charlon, M. Locher, H. Visser, D. Duperray, J. Cherr, M. Judson, A. Landesman, C. Hritz, U. Kohlschuetter, Yifeng Zhang, C. Ramesh, A. Daanen, M. Gao, S. Haas, V. Maheshwari, A. Bury, G. Nitsche, A. Wrzyszcz, W. Redman-White, H. Bonakdar, Rachid El Waffaoui, M. Bracey

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引用次数: 9

Abstract

This paper describes a low-power, high-performance WLAN 802.11 a/b/g radio transceiver optimized for mobile applications and co-existence with on-board cellular and Bluetooth systems. The direct conversion architecture is optimized to achieve uncompromised RF performance at low power. A key transceiver requirement is a sensitivity of -77dBm (at the LNA input) in the presence of a GSM 1900 transmitter interferer while in 54Mb/s OFDM mode. The receiver chain achieves a NF of 2.8/3.2dB, consuming 168/185mW at 2.8V for the 2.4/5GHz bands respectively. Signal loopback and transmit power detection techniques are used in conjunction with the baseband modem processor to calibrate the transmitter LO leakage and the transceiver I/Q imbalances. Fabricated in a 70GHz f/sub T/ 0.25/spl mu/m SiGe BiCMOS technology for system-in-package (SiP) use, the dual-band, tri-mode transceiver occupies only 4.6mm/sup 2/.

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一款低功耗高性能SiGe BiCMOS 802.11a/b/g收发器IC，适用于蜂窝和蓝牙共存应用

本文介绍了一种低功耗、高性能的WLAN 802.11 a/b/g无线电收发器，该收发器针对移动应用进行了优化，并与车载蜂窝和蓝牙系统共存。直接转换架构经过优化，可在低功耗下实现不受影响的射频性能。在54Mb/s OFDM模式下，当存在GSM 1900发射机干扰时，关键收发器要求灵敏度为-77dBm(在LNA输入处)。接收器链的NF值为2.8/3.2dB, 2.4/5GHz频段在2.8V时分别消耗168/185mW。信号环回和发射功率检测技术与基带调制解调器处理器一起用于校准发射机LO泄漏和收发器I/Q不平衡。采用70GHz f/sub / 0.25/spl /m SiGe BiCMOS技术制造，用于系统级封装(SiP)使用，双频三模收发器仅占用4.6mm/sup /。

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Proceedings of the 31st European Solid-State Circuits Conference, 2005. ESSCIRC 2005.

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