An accurate automatic tuning scheme for high-Q continuous-time bandpass filters based on amplitude comparison

被引：20

作者：

Liu, HS ^{[1
]}

Karsilayan, AI ^{[1
]}

机构：

[1] Texas A&M Univ, Dept Elect Engn, College Stn, TX 77843 USA

来源：

IEEE TRANSACTIONS ON CIRCUITS AND SYSTEMS II-ANALOG AND DIGITAL SIGNAL PROCESSING | 2003年 / 50卷 / 08期

关键词：

automatic tuning; bandpass filters; CMOS analog integrated circuits; continuous-time filters; CMOS; RANGE;

D O I：

10.1109/TCSII.2003.814802

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

A new automatic tuning scheme for continuous-time high-Q-bandpass filters is presented. It is conducted by amplitude comparison at three frequencies generated by an on-chip frequency synthesizer. Theoretical analysis and experimental results are provided. Analysis shows the tuning method is suitable for bandpass filters with Q > 10. A g(m) - C second-order filter is designed to demonstrate the proposed tuning scheme. The test chip is fabricated in AMI 0.5-mum process. The measured frequency tuning error is 0.25%, and Q-tuning error is 3% for a 200-MHz filter with a desired Q of 28.6.

引用

页码：415 / 423

页数：9

共 14 条

[1]

CHANG Y, 2001, P IEEE INT S CIRC SY, V4, P246

[2] A high-Q and wide-dynamic-range 70-MHz CMOS bandpass filter for wireless receivers [J].

Choi, YW ;

Luong, HC .

IEEE TRANSACTIONS ON CIRCUITS AND SYSTEMS II-ANALOG AND DIGITAL SIGNAL PROCESSING, 2001, 48 (05) :433-440

[3] A linear integrated LC bandpass filter with Q-enhancement [J].

Gao, WN ;

Snelgrove, WM .

IEEE TRANSACTIONS ON CIRCUITS AND SYSTEMS II-EXPRESS BRIEFS, 1998, 45 (05) :635-639

[4]

KARSILAYAN AJ, 1998, P IEEE ISCAS, P65

[5] A 30-MHZ HYBRID ANALOG DIGITAL CLOCK RECOVERY CIRCUIT IN 2-MU-M CMOS [J].

KIM, B ;

HELMAN, DN ;

GRAY, PR .

IEEE JOURNAL OF SOLID-STATE CIRCUITS, 1990, 25 (06) :1385-1394

[6] A linear MOS transconductor using source degeneration and adaptive biasing [J].

Kuo, KC ;

Leuciuc, A .

IEEE TRANSACTIONS ON CIRCUITS AND SYSTEMS II-ANALOG AND DIGITAL SIGNAL PROCESSING, 2001, 48 (10) :937-943

[7]

LIU H, 2002, P IEEE ISCAS, V3, P551

[8]

LIU H, 2002, THESIS TEXAS A M U C

[9]

LOPEZMARTINEZ A, 2001, P IEEE INT S CIRC SY, V1, P156

[10] MOSFET-C filter with on-chip tuning and wide programming range [J].

Osa, JI ;

Carlosena, A ;

López-Martín, AJ .

IEEE TRANSACTIONS ON CIRCUITS AND SYSTEMS II-EXPRESS BRIEFS, 2001, 48 (10) :944-951

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