標題: A 1.2 V 114 mW Dual-Band Direct-Conversion DVB-H Tuner in 0.13 mu m CMOS
作者: Kuo, Ming-Ching
Kao, Shiau-Wen
Chen, Chih-Hung
Hung, Tsun-Shuen
Shih, Yi-Shing
Yang, Tzu-Yi
Kuo, Chien-Nan
電子工程學系及電子研究所
Department of Electronics Engineering and Institute of Electronics
關鍵字: Balun;CMOS RF;current-mode switching;direct-conversion;DVB-H;DVB-T;mobile TV;noise-canceling LNA;OFDM;passive mixer;receiver;tuner
公開日期: 1-Mar-2009
摘要: A fully integrated direct-conversion tuner is implemented in 0.13 mu m CMOS technology. A broadband noise-canceling balun LNA with the proposed dual cross-coupling technique helps achieve an overall receiver noise figure from 3.7 to 4.3 dB while consuming only 3.6 mW. The proposed current-mode switching scheme improves the achievable SNIR with a gain step of 15 dB, providing IIP3 improvement of 18 dB and NF degradation of only 6 dB. Moreover, design trade-offs are carefully considered in designing the baseband circuit, which provides wide gain tuning and bandwidth accuracy with a DC offset residual less than 6 mV. The measured maximum SNR values are better than 30 dB over wide input power levels, ensuring robust reception in a mobile environment. All circuit blocks are operated at 1.2 V. As a result, the tuner consumes power as low as 114 mW in the continuous mode. This compact tuner supports both UHF and L-bands, and occupies only 7.2 mm(2) die area.
URI: http://dx.doi.org/10.1109/JSSC.2008.2012366
http://hdl.handle.net/11536/7532
ISSN: 0018-9200
DOI: 10.1109/JSSC.2008.2012366
期刊: IEEE JOURNAL OF SOLID-STATE CIRCUITS
Volume: 44
Issue: 3
起始頁: 740
結束頁: 750
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