CN109150177B - 一种带加抖机制的小数分频实现方法 - Google Patents
一种带加抖机制的小数分频实现方法 Download PDFInfo
- Publication number
- CN109150177B CN109150177B CN201810668105.2A CN201810668105A CN109150177B CN 109150177 B CN109150177 B CN 109150177B CN 201810668105 A CN201810668105 A CN 201810668105A CN 109150177 B CN109150177 B CN 109150177B
- Authority
- CN
- China
- Prior art keywords
- frequency division
- bit
- cancellation circuit
- signal
- frequency
- 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
- 238000000034 method Methods 0.000 title claims abstract description 12
- 230000007246 mechanism Effects 0.000 title claims abstract description 11
- 238000013139 quantization Methods 0.000 claims description 22
- 238000006243 chemical reaction Methods 0.000 claims description 7
- 238000007493 shaping process Methods 0.000 claims description 6
- 238000001914 filtration Methods 0.000 claims description 5
- 230000003111 delayed effect Effects 0.000 claims description 4
- 238000004364 calculation method Methods 0.000 claims description 3
- 238000004891 communication Methods 0.000 abstract description 2
- 230000015572 biosynthetic process Effects 0.000 description 8
- 238000003786 synthesis reaction Methods 0.000 description 8
- 238000010586 diagram Methods 0.000 description 5
- 230000006872 improvement Effects 0.000 description 5
- 238000001228 spectrum Methods 0.000 description 3
- 230000003595 spectral effect Effects 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 230000009977 dual effect Effects 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000003071 parasitic effect Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 238000004088 simulation Methods 0.000 description 1
Images
Classifications
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03L—AUTOMATIC CONTROL, STARTING, SYNCHRONISATION OR STABILISATION OF GENERATORS OF ELECTRONIC OSCILLATIONS OR PULSES
- H03L7/00—Automatic control of frequency or phase; Synchronisation
- H03L7/06—Automatic control of frequency or phase; Synchronisation using a reference signal applied to a frequency- or phase-locked loop
- H03L7/16—Indirect frequency synthesis, i.e. generating a desired one of a number of predetermined frequencies using a frequency- or phase-locked loop
- H03L7/18—Indirect frequency synthesis, i.e. generating a desired one of a number of predetermined frequencies using a frequency- or phase-locked loop using a frequency divider or counter in the loop
- H03L7/197—Indirect frequency synthesis, i.e. generating a desired one of a number of predetermined frequencies using a frequency- or phase-locked loop using a frequency divider or counter in the loop a time difference being used for locking the loop, the counter counting between numbers which are variable in time or the frequency divider dividing by a factor variable in time, e.g. for obtaining fractional frequency division
- H03L7/1974—Indirect frequency synthesis, i.e. generating a desired one of a number of predetermined frequencies using a frequency- or phase-locked loop using a frequency divider or counter in the loop a time difference being used for locking the loop, the counter counting between numbers which are variable in time or the frequency divider dividing by a factor variable in time, e.g. for obtaining fractional frequency division for fractional frequency division
Landscapes
- Compression, Expansion, Code Conversion, And Decoders (AREA)
Abstract
Description
Claims (1)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201810668105.2A CN109150177B (zh) | 2018-06-26 | 2018-06-26 | 一种带加抖机制的小数分频实现方法 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201810668105.2A CN109150177B (zh) | 2018-06-26 | 2018-06-26 | 一种带加抖机制的小数分频实现方法 |
Publications (2)
Publication Number | Publication Date |
---|---|
CN109150177A CN109150177A (zh) | 2019-01-04 |
CN109150177B true CN109150177B (zh) | 2022-07-19 |
Family
ID=64802358
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN201810668105.2A Active CN109150177B (zh) | 2018-06-26 | 2018-06-26 | 一种带加抖机制的小数分频实现方法 |
Country Status (1)
Country | Link |
---|---|
CN (1) | CN109150177B (zh) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
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 |
Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5781044A (en) * | 1994-05-12 | 1998-07-14 | Northern Telecom Limited | Delta-sigma fractional-N frequency synthesizer and frequency discriminator suitable for use therein |
CN101953076A (zh) * | 2008-02-26 | 2011-01-19 | 高通股份有限公司 | 分数n锁相环路中的δ-σ调制器时钟抖动 |
CN103107806A (zh) * | 2011-11-14 | 2013-05-15 | 孙茂友 | 一种低杂谱Sigma-Delta小数-N锁相环 |
CN103178834A (zh) * | 2013-03-07 | 2013-06-26 | 上海山景集成电路股份有限公司 | 小数分频系统 |
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 |
CN107612546A (zh) * | 2017-08-29 | 2018-01-19 | 电子科技大学 | 一种基于神经网络的锁相环电路 |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US7999622B2 (en) * | 2008-01-10 | 2011-08-16 | The Regents Of The University Of California | Adaptive phase noise cancellation for fractional-N phase locked loop |
CN104467860A (zh) * | 2014-11-09 | 2015-03-25 | 上海工程技术大学 | 一种级联过采样模数调制器 |
CN108063621B (zh) * | 2017-12-01 | 2021-05-25 | 宁波芯路通讯科技有限公司 | 可变架构的sigma-delta数据转换器 |
-
2018
- 2018-06-26 CN CN201810668105.2A patent/CN109150177B/zh active Active
Patent Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5781044A (en) * | 1994-05-12 | 1998-07-14 | Northern Telecom Limited | Delta-sigma fractional-N frequency synthesizer and frequency discriminator suitable for use therein |
CN101953076A (zh) * | 2008-02-26 | 2011-01-19 | 高通股份有限公司 | 分数n锁相环路中的δ-σ调制器时钟抖动 |
CN103107806A (zh) * | 2011-11-14 | 2013-05-15 | 孙茂友 | 一种低杂谱Sigma-Delta小数-N锁相环 |
CN103178834A (zh) * | 2013-03-07 | 2013-06-26 | 上海山景集成电路股份有限公司 | 小数分频系统 |
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 |
CN107612546A (zh) * | 2017-08-29 | 2018-01-19 | 电子科技大学 | 一种基于神经网络的锁相环电路 |
Non-Patent Citations (1)
Title |
---|
一种LFSR加抖的三阶Σ-Δ调制器设计;曹纯 等;《无线电通信技术》;20141211;第41卷(第1期);第64-66,80页 * |
Also Published As
Publication number | Publication date |
---|---|
CN109150177A (zh) | 2019-01-04 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
CN108667458B (zh) | 能够消除来自σ-δ调制器的量化噪声的分数n数字pll | |
US5625359A (en) | Variable sample rate ADC | |
Kozak et al. | Oversampled delta-sigma modulators: Analysis, applications and novel topologies | |
EP1225700B1 (en) | Delta-sigma modulator system and method | |
US5600320A (en) | Variable sample rate DAC | |
JP2004260791A (ja) | フラクショナルn周波数シンセサイザ及びシンセサイズ方法 | |
JP4155406B2 (ja) | デルタシグマ変調型分数分周pll周波数シンセサイザ、及び、無線通信装置 | |
JP3364206B2 (ja) | 周波数シンセサイザ装置、通信装置、周波数変調装置及び周波数変調方法 | |
Fitzgibbon et al. | Hardware reduction in digital delta-sigma modulators via bus-splitting and error masking—Part II: Non-constant input | |
JP2981922B2 (ja) | 周波数シンセサイザ | |
CN109150177B (zh) | 一种带加抖机制的小数分频实现方法 | |
WO2006065482A2 (en) | Method and apparatus for variable sigma-delta modulation | |
Ye et al. | Reduced complexity MASH delta–sigma modulator | |
Sun et al. | Reduced complexity, high performance digital delta-sigma modulator for fractional-N frequency synthesis | |
Fitzgibbon et al. | A spur-free MASH DDSM with high-order filtered dither | |
Basetas et al. | Single-bit-output all-digital frequency synthesis using multi-step look-ahead bandpass Σ-Δ modulator-like quantization processing | |
Xu et al. | Self-dithered digital delta-sigma modulators for fractional-N PLL | |
Basetas et al. | An efficient hardware architecture for the implementation of multi-step look-ahead sigma-delta modulators | |
Kennedy | Recent advances in the analysis, design and optimization of Digital Delta-Sigma Modulators | |
Gonzalez-Diaz et al. | Fractional frequency synthesizers with low order time-variant digital sigma-delta modulator | |
Fitzgibbon et al. | A nested digital delta-sigma modulator architecture for fractional-N frequency synthesis | |
Galanopoulos et al. | Delta-sigma modulation techniques to reduce noise and spurs in all-digital RF transmitters | |
Reddy | Noise shaping with sigma delta modulators in fractional-N synthesizers | |
Saeed et al. | Design of an Error Output Feedback Digital Delta Sigma Modulator with In–Stage Dithering for Spur–Free Output Spectrum | |
Temporiti et al. | Insights into wideband fractional all-digital PLLs for RF applications |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
PB01 | Publication | ||
PB01 | Publication | ||
SE01 | Entry into force of request for substantive examination | ||
SE01 | Entry into force of request for substantive examination | ||
CB02 | Change of applicant information | ||
CB02 | Change of applicant information |
Address after: 311422 4th floor, building 9, Yinhu innovation center, 9 Fuxian Road, Yinhu street, Fuyang District, Hangzhou City, Zhejiang Province Applicant after: Hangzhou xiongmai integrated circuit technology Co.,Ltd. Address before: 311422 4th floor, building 9, Yinhu innovation center, 9 Fuxian Road, Yinhu street, Fuyang District, Hangzhou City, Zhejiang Province Applicant before: HANGZHOU XIONGMAI INTEGRATED CIRCUIT TECHNOLOGY CO.,LTD. |
|
GR01 | Patent grant | ||
GR01 | Patent grant | ||
PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of invention: A Realization Method of Fractional Frequency Division with Dithering Mechanism Effective date of registration: 20221211 Granted publication date: 20220719 Pledgee: Hangzhou Fuyang Sub branch of Zheshang Bank Co.,Ltd. Pledgor: Hangzhou xiongmai integrated circuit technology Co.,Ltd. Registration number: Y2022330003571 |
|
CP01 | Change in the name or title of a patent holder | ||
CP01 | Change in the name or title of a patent holder |
Address after: 311422 4th floor, building 9, Yinhu innovation center, 9 Fuxian Road, Yinhu street, Fuyang District, Hangzhou City, Zhejiang Province Patentee after: Zhejiang Xinmai Microelectronics Co.,Ltd. Address before: 311422 4th floor, building 9, Yinhu innovation center, 9 Fuxian Road, Yinhu street, Fuyang District, Hangzhou City, Zhejiang Province Patentee before: Hangzhou xiongmai integrated circuit technology Co.,Ltd. |