JP2002509377A5 - - Google Patents

Download PDF

Info

Publication number
JP2002509377A5
JP2002509377A5 JP2000539581A JP2000539581A JP2002509377A5 JP 2002509377 A5 JP2002509377 A5 JP 2002509377A5 JP 2000539581 A JP2000539581 A JP 2000539581A JP 2000539581 A JP2000539581 A JP 2000539581A JP 2002509377 A5 JP2002509377 A5 JP 2002509377A5
Authority
JP
Japan
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
JP2000539581A
Other versions
JP2002509377A (ja
Filing date
Publication date
Priority claimed from US08/989,864 external-priority patent/US5986512A/en
Application filed filed Critical
Publication of JP2002509377A publication Critical patent/JP2002509377A/ja
Publication of JP2002509377A5 publication Critical patent/JP2002509377A5/ja
Pending legal-status Critical Current

Links

JP2000539581A 1997-12-12 1998-12-08 Σδ変調器制御式の位相ロックループ回路および関連する方法 Pending JP2002509377A (ja)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US08/989,864 1997-12-12
US08/989,864 US5986512A (en) 1997-12-12 1997-12-12 Σ-Δ modulator-controlled phase-locked-loop circuit
PCT/SE1998/002246 WO1999031807A1 (en) 1997-12-12 1998-12-08 Σδ modulator-controlled phase-locked-loop circuit and associated method

Publications (2)

Publication Number Publication Date
JP2002509377A JP2002509377A (ja) 2002-03-26
JP2002509377A5 true JP2002509377A5 (ja) 2005-12-22

Family

ID=25535545

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2000539581A Pending JP2002509377A (ja) 1997-12-12 1998-12-08 Σδ変調器制御式の位相ロックループ回路および関連する方法

Country Status (11)

Country Link
US (1) US5986512A (ja)
EP (1) EP1038356A1 (ja)
JP (1) JP2002509377A (ja)
KR (1) KR100535704B1 (ja)
CN (1) CN1197249C (ja)
AU (1) AU746122B2 (ja)
BR (1) BR9813555B1 (ja)
EE (1) EE200000338A (ja)
HK (1) HK1035083A1 (ja)
MY (1) MY118263A (ja)
WO (1) WO1999031807A1 (ja)

Families Citing this family (58)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6294936B1 (en) * 1998-09-28 2001-09-25 American Microsystems, Inc. Spread-spectrum modulation methods and circuit for clock generator phase-locked loop
EP1111793B1 (en) * 1999-12-13 2003-11-05 Matsushita Electric Industrial Co., Ltd. Frequency synthesizer apparatus equipped with delta-sigma modulator in fraction part control circuit
EP1254517B2 (en) † 1999-12-14 2009-02-11 Broadcom Corporation Frequency division/multiplication with jitter minimization
KR20020019541A (ko) * 2000-05-19 2002-03-12 롤페스 요하네스 게라투스 알베르투스 신호 생성 장치 및 위상 동기 루프 회로
US6301306B1 (en) * 2000-05-26 2001-10-09 Motorola, Inc. Method and apparatus for generating a short-range wireless data communication link
AU2001275880A1 (en) 2000-07-10 2002-01-21 Silicon Laboratories, Inc. Digitally-synthesized loop filter circuit particularly useful for a phase locked loop
US6577257B2 (en) * 2000-09-11 2003-06-10 Broadcom Corporation Methods and systems for digital dither
KR100420856B1 (ko) * 2001-01-26 2004-03-02 학교법인연세대학교 순서 비의존 투명성을 하드웨어적으로 제공해주는 병렬 렌더링 가속기
DE10115386A1 (de) * 2001-03-28 2002-10-24 Siemens Ag Noise-Shaping-Verfahren
US7042970B1 (en) * 2001-06-15 2006-05-09 Analog Devices, Inc. Phase frequency detector with adjustable offset
US6952138B2 (en) 2001-09-12 2005-10-04 Telefonaktiebolaget Lm Ericsson (Publ) Generation of a phase locked loop output signal having reduced spurious spectral components
US6674331B2 (en) * 2001-11-09 2004-01-06 Agere Systems, Inc. Method and apparatus for simplified tuning of a two-point modulated PLL
US6600378B1 (en) * 2002-01-18 2003-07-29 Nokia Corporation Fractional-N frequency synthesizer with sine wave generator
DE10205680B4 (de) * 2002-02-12 2010-06-02 Infineon Technologies Ag Ein-Punkt-Modulator mit PLL-Schaltung
US6823033B2 (en) 2002-03-12 2004-11-23 Qualcomm Inc. ΣΔdelta modulator controlled phase locked loop with a noise shaped dither
JP4041323B2 (ja) * 2002-03-12 2008-01-30 松下電器産業株式会社 周波数変調装置、周波数変調方法、および、無線回路装置
JP4237448B2 (ja) * 2002-05-22 2009-03-11 株式会社ルネサステクノロジ 半導体装置の製造方法
US6909331B2 (en) * 2002-08-28 2005-06-21 Qualcomm Incorporated Phase locked loop having a forward gain adaptation module
CN100362743C (zh) * 2002-10-25 2008-01-16 Gct半导体公司 用于抑制锁相环电路中的噪声的系统和方法
CN100521542C (zh) 2002-12-26 2009-07-29 富士通微电子株式会社 Pll电路的∑△调制器
US7495516B2 (en) 2003-04-02 2009-02-24 Christopher Julian Travis Method of establishing an oscillator clock signal
US7181180B1 (en) * 2003-05-15 2007-02-20 Marvell International Ltd. Sigma delta modulated phase lock loop with phase interpolation
JP4373267B2 (ja) * 2003-07-09 2009-11-25 株式会社ルネサステクノロジ スプレッドスペクトラムクロック発生器及びそれを用いた集積回路装置
US7352249B2 (en) * 2003-10-03 2008-04-01 Analog Devices, Inc. Phase-locked loop bandwidth calibration circuit and method thereof
GB2409383B (en) * 2003-12-17 2006-06-21 Wolfson Ltd Clock synchroniser
DE102004009116B3 (de) * 2004-02-25 2005-04-28 Infineon Technologies Ag Delta-Sigma-Frequenzdiskriminator
US7098707B2 (en) * 2004-03-09 2006-08-29 Altera Corporation Highly configurable PLL architecture for programmable logic
US7706495B2 (en) * 2004-03-12 2010-04-27 Panasonic Corporation Two-point frequency modulation apparatus
US6950048B1 (en) * 2004-04-02 2005-09-27 Tektronix, Inc. Dither system for a quantizing device
US20050266805A1 (en) * 2004-05-28 2005-12-01 Jensen Henrik T Digital delta sigma modulator and applications thereof
DE602004005437T2 (de) * 2004-07-01 2007-07-19 Ericsson Technology Licensing Ab Vorrichtung mit einem Sigma-Delta-Modulator und Verfahren zur Erzeugung eines quantisierten Signals in einem Sigma-Delta Modulator
US7394418B2 (en) * 2004-07-01 2008-07-01 Telefonaktiebolaget Lm Ericsson (Publ) Apparatus comprising a sigma-delta modulator and method of generating a quantized signal-delta modulator
US7250823B2 (en) * 2005-05-25 2007-07-31 Harris Corporation Direct digital synthesis (DDS) phase locked loop (PLL) frequency synthesizer and associated methods
WO2007004465A1 (ja) * 2005-07-04 2007-01-11 Matsushita Electric Industrial Co., Ltd. 半導体装置およびそれを用いた無線回路装置
GB0514677D0 (en) * 2005-07-18 2005-08-24 Queen Mary & Westfield College Sigma delta modulators
CN101467116B (zh) * 2006-06-15 2010-10-13 Nxp股份有限公司 为处理器提供时钟频率的方法及电子设备
US7570182B2 (en) * 2006-09-15 2009-08-04 Texas Instruments Incorporated Adaptive spectral noise shaping to improve time to digital converter quantization resolution using dithering
US7417510B2 (en) * 2006-09-28 2008-08-26 Silicon Laboratories Inc. Direct digital interpolative synthesis
US7764134B2 (en) * 2007-06-14 2010-07-27 Silicon Laboratories Inc. Fractional divider
US7991102B2 (en) * 2007-09-20 2011-08-02 Mediatek Inc. Signal generating apparatus and method thereof
US7911247B2 (en) * 2008-02-26 2011-03-22 Qualcomm Incorporated Delta-sigma modulator clock dithering in a fractional-N phase-locked loop
CN101572550B (zh) * 2008-04-30 2012-08-22 中芯国际集成电路制造(北京)有限公司 锁相环频率合成器及调整调制信号频率的方法
US8085097B2 (en) * 2008-05-06 2011-12-27 Hittite Microwave Corporation Integrated ramp, sweep fractional frequency synthesizer on an integrated circuit chip
US7911241B1 (en) * 2009-10-29 2011-03-22 Stmicroelectronics Design And Application Gmbh Frequency synthesizer circuit comprising a phase locked loop
US8248175B2 (en) 2010-12-30 2012-08-21 Silicon Laboratories Inc. Oscillator with external voltage control and interpolative divider in the output path
WO2012150621A1 (ja) * 2011-05-02 2012-11-08 パナソニック株式会社 周波数シンセサイザ
WO2012162886A1 (en) * 2011-06-01 2012-12-06 Huawei Technologies Co., Ltd. Spur suppression in a phase-locked loop
US8514118B2 (en) * 2011-09-23 2013-08-20 Silicon Laboratories Inc. Sigma-delta modulation with reduction of spurs using a dither signal
US9660797B2 (en) 2013-03-21 2017-05-23 Telefonaktiebolaget Lm Ericsson (Publ) Method and apparatus for implementing clock holdover
US9231606B2 (en) * 2013-08-20 2016-01-05 Skyworks Solutions, Inc. Dither-less error feedback fractional-N frequency synthesizer systems and methods
US10439754B2 (en) * 2016-04-13 2019-10-08 The Boeing Company Methods and apparatus to implement a third-order signal scrambler
US10476708B2 (en) 2016-04-13 2019-11-12 The Boeing Company Methods and apparatus to implement a signal scrambler
KR102435034B1 (ko) * 2017-06-21 2022-08-23 삼성전자주식회사 디지털 위상 고정 루프 및 디지털 위상 고정 루프의 동작 방법
US10291386B2 (en) * 2017-09-29 2019-05-14 Cavium, Llc Serializer/deserializer (SerDes) lanes with lane-by-lane datarate independence
CN108566200A (zh) * 2018-04-27 2018-09-21 上海顺久电子科技有限公司 一种分频器控制器电路、锁相环及芯片
KR102414817B1 (ko) * 2020-05-25 2022-06-30 윈본드 일렉트로닉스 코포레이션 지연 락 루프 디바이스와 그 동작 방법
KR102392119B1 (ko) * 2021-07-21 2022-04-27 중앙대학교 산학협력단 위상 회전자를 이용한 분수 서브 샘플링 위상 고정 루프
DE102022213918A1 (de) * 2022-12-19 2024-06-20 Robert Bosch Gesellschaft mit beschränkter Haftung Vorrichtung und Verfahren zum Reduzieren parasitärer Signalanteile eines Sigma-Delta-Modulators

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4410954A (en) * 1980-10-08 1983-10-18 Rockwell International Corporation Digital frequency synthesizer with random jittering for reducing discrete spectral spurs
GB2238434B (en) * 1989-11-22 1994-03-16 Stc Plc Frequency synthesiser
US5038117A (en) * 1990-01-23 1991-08-06 Hewlett-Packard Company Multiple-modulator fractional-N divider
US5144308A (en) * 1991-05-21 1992-09-01 At&T Bell Laboratories Idle channel tone and periodic noise suppression for sigma-delta modulators using high-level dither
US5305362A (en) * 1992-12-10 1994-04-19 Hewlett-Packard Company Spur reduction for multiple modulator based synthesis
EP0788237A4 (en) * 1995-08-03 1998-11-25 Anritsu Corp RATIONAL FREQUENCY DIVIDER AND FREQUENCY SYNTHESIZER EMPLOYING THIS FREQUENCY DIVIDER
US5825253A (en) * 1997-07-15 1998-10-20 Qualcomm Incorporated Phase-locked-loop with noise shaper

Similar Documents

Publication Publication Date Title
JP2002509377A5 (ja)
JP2003523100A5 (ja)
JP2001527345A5 (ja)
IN189749B (ja)
IN189840B (ja)
IN190779B (ja)
JP2594534C (ja)
JP2532909Z (ja)
JP2517465Z (ja)
JP2525484Z (ja)
JP2532285C (ja)
JP2528311C (ja)
JP2558760C (ja)
JP2574058C (ja)
CN3081076S (ja)
CN3074054S (ja)
CN3078962S (ja)
CN3078569S (ja)
CN3077504S (ja)
CN3076976S (ja)
CN3089187S (ja)
CN3076811S (ja)
CN3076442S (ja)
CN3076419S (ja)
CN3075591S (ja)