A low power Gm-C filter with on-chip automatic tuning for a WLAN transceiver

Liu Silin ^* Ma Heping Shi Yin

文摘	A sixth-order Butterworth Gm-C low-pass filter (LPF) with a continuous tuning architecture has been implemented for a wireless LAN (WLAN) transceiver in 0.35 μm CMOS technology. An interior node scaling technique has been applied directly to the LPF to improve the dynamic range and the structure of the LPF has been optimized to reduce both the die size and the current consumption. Measurement results show that the filter has 77.5 dB dynamic range, 16.3 ns group delay variation, better than 3% cutoff frequency accuracy, and 0 dBm passband IIP3. The whole LPF with the tuning circuit dissipates only 1.42 mA (5 MHz cutoff frequency) or 2.81 mA (10 MHz cutoff frequency) from 2.85 V supply voltage, and only occupies 0.175 mm~2 die size
来源	Journal of Semiconductors ,2010,31(6):065008-1-065008-6 【核心库】
DOI	10.1088/1674-4926/31/6/065008
关键词	Gm-C filter ; interior node scaling ; frequency automatic tuning
地址	Institute of Semiconductors, Chinese Academy of Sciences, Beijing, 100083
语种	英文
文献类型	研究性论文
ISSN	1674-4926
学科	电子技术、通信技术
文献收藏号	CSCD:3971846

参考文献共 8 共1页

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引证文献 2 篇

1 Cheng Xin A CMOS G_m-C complex filter with a reconfigurable center and cutoff frequencies in low-IF WiMAX receivers Journal of Semiconductors,2013,34(7):075004-1-075004-7
被引 3 次

2 Wang Yu A low-noise widely tunable Gm-C filter with frequency calibration Journal of Semiconductors,2016,37(9):095002-1-095002-8
被引 0 次

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