CN105049039B - 一种用于杂散抑制的小数分频电路 - Google Patents
一种用于杂散抑制的小数分频电路 Download PDFInfo
- Publication number
- CN105049039B CN105049039B CN201510394907.5A CN201510394907A CN105049039B CN 105049039 B CN105049039 B CN 105049039B CN 201510394907 A CN201510394907 A CN 201510394907A CN 105049039 B CN105049039 B CN 105049039B
- Authority
- CN
- China
- Prior art keywords
- frequency
- clock signal
- delta modulator
- sigma
- fractional
- Prior art date
- 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.)
- Active
Links
- 230000001629 suppression Effects 0.000 claims description 10
- 239000013078 crystal Substances 0.000 claims description 3
- 230000010354 integration Effects 0.000 claims description 2
- 238000005516 engineering process Methods 0.000 description 5
- 238000001514 detection method Methods 0.000 description 3
- 230000007547 defect Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000002401 inhibitory effect Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000000737 periodic effect Effects 0.000 description 2
- 238000013139 quantization Methods 0.000 description 2
- 230000003595 spectral effect Effects 0.000 description 2
- 238000012935 Averaging Methods 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 238000006731 degradation reaction Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 230000002542 deteriorative effect Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000005070 sampling Methods 0.000 description 1
- 238000007493 shaping process Methods 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
- 238000003786 synthesis reaction Methods 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
Landscapes
- Stabilization Of Oscillater, Synchronisation, Frequency Synthesizers (AREA)
Abstract
Description
Claims (7)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201510394907.5A CN105049039B (zh) | 2015-07-08 | 2015-07-08 | 一种用于杂散抑制的小数分频电路 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201510394907.5A CN105049039B (zh) | 2015-07-08 | 2015-07-08 | 一种用于杂散抑制的小数分频电路 |
Publications (2)
Publication Number | Publication Date |
---|---|
CN105049039A CN105049039A (zh) | 2015-11-11 |
CN105049039B true CN105049039B (zh) | 2017-12-01 |
Family
ID=54455276
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN201510394907.5A Active CN105049039B (zh) | 2015-07-08 | 2015-07-08 | 一种用于杂散抑制的小数分频电路 |
Country Status (1)
Country | Link |
---|---|
CN (1) | CN105049039B (zh) |
Families Citing this family (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN106650877B (zh) * | 2016-11-25 | 2019-08-23 | 华东师范大学 | 最大化输出循环长度的输出反馈型增量总和调制器 |
CN106849946A (zh) * | 2016-12-13 | 2017-06-13 | 航天恒星科技有限公司 | 一种小数分频频率综合器及小数分频方法 |
CN107248862A (zh) * | 2017-06-09 | 2017-10-13 | 芯海科技(深圳)股份有限公司 | 一种小数分频降低频率抖动电路及方法 |
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 |
CN109936363B (zh) * | 2019-03-06 | 2023-08-04 | 北京中创锐科信息技术有限公司 | 宽带小数分频锁相环系统及其杂散优化方法 |
CN110190847B (zh) * | 2019-04-26 | 2023-06-02 | 西安邮电大学 | 一种应用于频率合成器的小数n分频电路及方法 |
US10879916B1 (en) * | 2019-06-05 | 2020-12-29 | Shenzhen GOODIX Technology Co., Ltd. | Fractional divider for modulated phase-lock loop circuits |
CN113014253A (zh) * | 2019-12-20 | 2021-06-22 | 中兴通讯股份有限公司 | 一种频率合成器、频率合成方法、电子设备及存储介质 |
CN113037282B (zh) * | 2021-02-25 | 2022-12-09 | 西安交通大学 | 一种基于电压均值的小数分频参考采样频率合成器 |
CN114448525A (zh) * | 2021-12-28 | 2022-05-06 | 成都天贸科技有限公司 | 一种s频段扩频信号模拟源 |
WO2023165216A1 (zh) * | 2022-03-03 | 2023-09-07 | 加特兰微电子科技(上海)有限公司 | 锁相环、雷达系统及随机化fmcw信号初始相位的方法 |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN103155415A (zh) * | 2011-06-15 | 2013-06-12 | 旭化成微电子株式会社 | 分数-n频率合成器中用于消除环路增益改变时的相位跃变的消除系统 |
CN104467826A (zh) * | 2014-12-18 | 2015-03-25 | 中国电子科技集团公司第五十四研究所 | 一种带加抖整形的△∑小数频率综合器 |
Family Cites Families (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR100990484B1 (ko) * | 2004-03-29 | 2010-10-29 | 삼성전자주식회사 | 직렬 버스 통신을 위한 송신 클럭 신호 발생기 |
US8299826B2 (en) * | 2009-08-25 | 2012-10-30 | Sitime Corporation | Phase locked loop circuitry having switched resistor loop filter circuitry, and methods of operating same |
-
2015
- 2015-07-08 CN CN201510394907.5A patent/CN105049039B/zh active Active
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN103155415A (zh) * | 2011-06-15 | 2013-06-12 | 旭化成微电子株式会社 | 分数-n频率合成器中用于消除环路增益改变时的相位跃变的消除系统 |
CN104467826A (zh) * | 2014-12-18 | 2015-03-25 | 中国电子科技集团公司第五十四研究所 | 一种带加抖整形的△∑小数频率综合器 |
Also Published As
Publication number | Publication date |
---|---|
CN105049039A (zh) | 2015-11-11 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
CN105049039B (zh) | 一种用于杂散抑制的小数分频电路 | |
US7741886B2 (en) | Frequency divider | |
US20100097150A1 (en) | Pll circuit | |
US20160248431A1 (en) | Techniques for Fractional-N Phase Locked Loops | |
US8446194B2 (en) | Spread spectrum clock generating circuit | |
US8891725B2 (en) | Frequency divider with improved linearity for a fractional-N synthesizer using a multi-modulus prescaler | |
US9280928B2 (en) | Apparatus and method for driving LED display | |
KR101611814B1 (ko) | 분수 분주형 주파수 합성기의 광범위 멀티-모듈러스 분할기 | |
KR100819390B1 (ko) | 2개의 위상 동기 루프를 사용한 주파수 합성기 | |
CN104601171A (zh) | 小数分频器和小数分频锁相环 | |
CN101783679A (zh) | 锁相环电路 | |
US20100156485A1 (en) | Delay element array for time-to-digital converters | |
CN105024701A (zh) | 一种用于杂散抑制的分频比调制器 | |
Chen et al. | A spread spectrum clock generator for SATA-II | |
KR101002244B1 (ko) | 듀얼 델타-시그마 모듈레이터를 이용한 허쉬-키스 변조 파형의 대역 확산 클록 발생기 | |
EP4175180A1 (en) | Circuitry and methods for fractional division of high-frequency clock signals | |
CN104320133A (zh) | 一种抑制小数锁相环小数杂散的电路及方法 | |
US10374618B1 (en) | Frequency locked loop with multi-bit sampler | |
US20160329902A1 (en) | Reducing errors due to non-linearities caused by a phase frequency detector of a phase locked loop | |
CN110506394B (zh) | 频率产生器 | |
US8390358B2 (en) | Integrated jitter compliant clock signal generation | |
CN116094527B (zh) | 消除游走杂散的积分差分调制器 | |
CN113315514B (zh) | 一种双模扩频时钟发生器 | |
KR101202124B1 (ko) | 2차 시그마-델타 모듈레이터를 이용한 오디오 클록 생성기 | |
JP2004080404A (ja) | 半導体装置 |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
C06 | Publication | ||
PB01 | Publication | ||
C10 | Entry into substantive examination | ||
SE01 | Entry into force of request for substantive examination | ||
GR01 | Patent grant | ||
GR01 | Patent grant | ||
TR01 | Transfer of patent right |
Effective date of registration: 20190225 Address after: 266555 Xiangjiang 98, Huangdao District, Qingdao City, Shandong Province Patentee after: China Electronics Technology Instrument and Meter Co., Ltd. Address before: 266555 No. 98 Xiangjiang Road, Qingdao economic and Technological Development Zone, Shandong Patentee before: The 41st Institute of CETC |
|
TR01 | Transfer of patent right | ||
CP01 | Change in the name or title of a patent holder |
Address after: 266555 Xiangjiang 98, Huangdao District, Qingdao City, Shandong Province Patentee after: CLP kesiyi Technology Co.,Ltd. Address before: 266555 Xiangjiang 98, Huangdao District, Qingdao City, Shandong Province Patentee before: CHINA ELECTRONIC TECHNOLOGY INSTRUMENTS Co.,Ltd. |
|
CP01 | Change in the name or title of a patent holder |