CN1461109A - 锁相环电路 - Google Patents
锁相环电路 Download PDFInfo
- Publication number
- CN1461109A CN1461109A CN03130961A CN03130961A CN1461109A CN 1461109 A CN1461109 A CN 1461109A CN 03130961 A CN03130961 A CN 03130961A CN 03130961 A CN03130961 A CN 03130961A CN 1461109 A CN1461109 A CN 1461109A
- Authority
- CN
- China
- Prior art keywords
- phase
- input voltage
- controlled oscillator
- circuit
- locked loop
- 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.)
- Pending
Links
- 238000006243 chemical reaction Methods 0.000 claims description 63
- 230000000903 blocking effect Effects 0.000 description 13
- 238000010586 diagram Methods 0.000 description 11
- 238000000034 method Methods 0.000 description 8
- 239000013078 crystal Substances 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000010355 oscillation Effects 0.000 description 2
- 230000000630 rising effect Effects 0.000 description 2
- 241001269238 Data Species 0.000 description 1
- 239000003990 capacitor Substances 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 230000009466 transformation Effects 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
- H03L7/08—Details of the phase-locked loop
- H03L7/10—Details of the phase-locked loop for assuring initial synchronisation or for broadening the capture range
-
- 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
- H03L7/08—Details of the phase-locked loop
- H03L7/085—Details of the phase-locked loop concerning mainly the frequency- or phase-detection arrangement including the filtering or amplification of its output signal
- H03L7/089—Details of the phase-locked loop concerning mainly the frequency- or phase-detection arrangement including the filtering or amplification of its output signal the phase or frequency detector generating up-down pulses
- H03L7/0891—Details of the phase-locked loop concerning mainly the frequency- or phase-detection arrangement including the filtering or amplification of its output signal the phase or frequency detector generating up-down pulses the up-down pulses controlling source and sink current generators, e.g. a charge pump
- H03L7/0895—Details of the current generators
- H03L7/0898—Details of the current generators the source or sink current values being variable
-
- 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
- H03L7/08—Details of the phase-locked loop
- H03L7/10—Details of the phase-locked loop for assuring initial synchronisation or for broadening the capture range
- H03L7/107—Details of the phase-locked loop for assuring initial synchronisation or for broadening the capture range using a variable transfer function for the loop, e.g. low pass filter having a variable bandwidth
- H03L7/1075—Details of the phase-locked loop for assuring initial synchronisation or for broadening the capture range using a variable transfer function for the loop, e.g. low pass filter having a variable bandwidth by changing characteristics of the loop filter, e.g. changing the gain, changing the bandwidth
-
- 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
Landscapes
- Stabilization Of Oscillater, Synchronisation, Frequency Synthesizers (AREA)
Abstract
Description
Claims (5)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2002145303 | 2002-05-20 | ||
JP2002145303A JP2003338753A (ja) | 2002-05-20 | 2002-05-20 | Pll回路 |
Publications (1)
Publication Number | Publication Date |
---|---|
CN1461109A true CN1461109A (zh) | 2003-12-10 |
Family
ID=29417109
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN03130961A Pending CN1461109A (zh) | 2002-05-20 | 2003-05-09 | 锁相环电路 |
Country Status (4)
Country | Link |
---|---|
US (1) | US20030214330A1 (zh) |
JP (1) | JP2003338753A (zh) |
KR (1) | KR20030090525A (zh) |
CN (1) | CN1461109A (zh) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN1902825B (zh) * | 2004-01-12 | 2010-12-08 | Nxp股份有限公司 | Pll电路 |
Families Citing this family (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2426879C (en) * | 2003-12-12 | 2008-01-21 | Qualcomm Inc | A phase locked loop that sets gain automatically |
DE102004041656B4 (de) * | 2004-08-27 | 2007-11-08 | Infineon Technologies Ag | Phasenregelkreis und Verfahren zum Abgleichen eines Schleifenfilters |
US7710212B2 (en) * | 2007-07-23 | 2010-05-04 | Analog Devices, Inc. | Crystal oscillator with variable-gain and variable-output-impedance inverter system |
JP2009267775A (ja) * | 2008-04-25 | 2009-11-12 | Renesas Technology Corp | Pll回路およびシリアルインターフェース回路 |
US9520887B1 (en) | 2015-09-25 | 2016-12-13 | Qualcomm Incorporated | Glitch free bandwidth-switching scheme for an analog phase-locked loop (PLL) |
LU500939B1 (en) * | 2021-12-01 | 2023-06-01 | Univ Paderborn | Enhanced PLL circuit |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE60112199T2 (de) * | 2000-03-15 | 2006-06-01 | Koninklijke Philips Electronics N.V. | Leistungsarmer phasen- und frequenzdetektor mit ladungspumpe und ohne totbereich |
JP3434794B2 (ja) * | 2000-10-05 | 2003-08-11 | 山形日本電気株式会社 | Pll回路 |
US6580329B2 (en) * | 2001-04-11 | 2003-06-17 | Tropian, Inc. | PLL bandwidth switching |
-
2002
- 2002-05-20 JP JP2002145303A patent/JP2003338753A/ja not_active Withdrawn
-
2003
- 2003-04-18 US US10/418,167 patent/US20030214330A1/en not_active Abandoned
- 2003-05-09 CN CN03130961A patent/CN1461109A/zh active Pending
- 2003-05-19 KR KR10-2003-0031520A patent/KR20030090525A/ko not_active Application Discontinuation
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN1902825B (zh) * | 2004-01-12 | 2010-12-08 | Nxp股份有限公司 | Pll电路 |
Also Published As
Publication number | Publication date |
---|---|
JP2003338753A (ja) | 2003-11-28 |
KR20030090525A (ko) | 2003-11-28 |
US20030214330A1 (en) | 2003-11-20 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
C06 | Publication | ||
PB01 | Publication | ||
C10 | Entry into substantive examination | ||
SE01 | Entry into force of request for substantive examination | ||
CI01 | Correction of invention patent gazette |
Correction item: Inventor Correct: Tanigami Masahito|Baba Hiroshi False: Tanikashira Masato|Baba Hiroshi Number: 50 Page: 147 Volume: 19 |
|
CI02 | Correction of invention patent application |
Correction item: Inventor Correct: Tanigami Masahito|Baba Hiroshi False: Tanikashira Masato|Baba Hiroshi Number: 50 Page: The title page Volume: 19 |
|
C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
WD01 | Invention patent application deemed withdrawn after publication |