具有自我偵測與自動校正能力的0.18微米CMOS射頻EDR藍芽收發機

藍芽通訊已經成為被廣泛應用的通訊協定，其傳輸資料的前段部分採用GFSK的調變技術來達到訊號認證的功用，本研究因應藍芽通訊的發展，以藍芽+EDR為研究對象，完成本研究的驗證，本研究乃實現一無線高頻前端收發機，來接受與發送藍芽技術的訊號，利用電路本身之自我訊號偵測與自動增益校正的功能，來偵測調變訊號並達到自動增益調整的目的，而不需要額外基頻數位控制的電路。本研究發展之無線收發機，內部包含GFSK訊號偵測機制，低雜訊放大器的增益控制，以及整合型PGA與RSSI的自動增益校正機制。本研究最後以FPGA實現藍芽技術之實體層與此無線收發機結合測試，其發送端的DEVM測試為小於6%，接收端的系統NF為小於7.5dB。功耗的表現上，在1.8V內部的供給電壓以及連續訊號的測試下，發送端為42mA，接收端為32mA。

關鍵字

無線高頻收發機；自我偵測；自動校正；可程式增益控制；藍芽

並列摘要

An RF front-end transceiver is implemented in standard 0.18μm CMOS for V3.0 Bluetooth applications. All signal detection and gain calibrations are realized without baseband’s control and just using an incoming GFSK signal detection mechanism, auto LNA gain mode selection, and auto gain calibration with a combined PGA/RSSI function. A simple control interface between transceiver and baseband is achieved in this design. The DEVM performance of the transmitter is less than 6% and a less than 7.5dB system NF is achieved in the receiver. Continuous current consumptions in Rx and Tx are 32mA and 42mA respectively with a 1.8V internal regulator voltage.

並列關鍵字

RF Transceiver ； Self-Detection ； Auto-Calibration ； PGA ； RSSI ； Bluetooth

參考文獻

[3] Jeonghun Kim, Youngwhan Choi, Jungwon Jeong, Suhho Lee, and Suki Kim, “The v2.0+EDR Bluetooth SOC Architecture for Multimedia,” IEEE Transactions on Consumer Electronics, Vol. 52, No. 2, pp. 436-444, May 2006.

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[8] T.B. Cho, D. Kang, C.H. Heng, and B.S. Song, “A 2.4-GHz dual-mode 0.18-μm CMOS transceiver for Bluetooth and 802.11b,” IEEE Journal of Solid-State Circuits, Vol. 39, No. 11, pp. 1916-1926, Nov. 2004

[10] P.B. Leong, D. Cheung, N. Kumar, L. Lin, S. Tan, H. Wang, S. Wang, S.K. Chan, G. Chien, T. Cho, Y.H. Song, and L. Tse, “World’s First 90nm CMOS Single-Chip Bluetooth and WLAN with Integrated RF,” IEEE International Symposium on Integrated Circuits, pp. 337-340, Sep. 2007

[11] Zhou Tao, “A 2.4GHz Dual-Mode CMOS Transceiver for Bluetooth and 802.11b,” IEEE International Conference on Integration Technology, pp. 465-469, Mar. 2007

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具有自我偵測與自動校正能力的0.18微米CMOS射頻EDR藍芽收發機

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