PT1025645E - Circuito em anel de bloqueio de fase de terceira ordem modificado - Google Patents
Circuito em anel de bloqueio de fase de terceira ordem modificadoInfo
- Publication number
- PT1025645E PT1025645E PT98953757T PT98953757T PT1025645E PT 1025645 E PT1025645 E PT 1025645E PT 98953757 T PT98953757 T PT 98953757T PT 98953757 T PT98953757 T PT 98953757T PT 1025645 E PT1025645 E PT 1025645E
- Authority
- PT
- Portugal
- Prior art keywords
- integrator
- loop filter
- generates
- pump
- control signal
- Prior art date
Links
- 230000004913 activation Effects 0.000 abstract 1
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
- H03L7/085—Details of the phase-locked loop concerning mainly the frequency- or phase-detection arrangement including the filtering or amplification of its output signal
- H03L7/093—Details of the phase-locked loop concerning mainly the frequency- or phase-detection arrangement including the filtering or amplification of its output signal using special filtering or amplification characteristics in the loop
-
- 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
- H03L7/0893—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 the up-down pulses controlling at least two source current generators or at least two sink current generators connected to different points in the loop
-
- 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
- H03L7/1072—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 charge pump, e.g. changing the gain
Landscapes
- Stabilization Of Oscillater, Synchronisation, Frequency Synthesizers (AREA)
- Amplifiers (AREA)
- Networks Using Active Elements (AREA)
- Signal Processing For Digital Recording And Reproducing (AREA)
- Apparatus For Radiation Diagnosis (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US08/954,914 US6188739B1 (en) | 1997-10-21 | 1997-10-21 | Modified third order phase-locked loop |
Publications (1)
Publication Number | Publication Date |
---|---|
PT1025645E true PT1025645E (pt) | 2002-06-28 |
Family
ID=25496106
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PT98953757T PT1025645E (pt) | 1997-10-21 | 1998-10-20 | Circuito em anel de bloqueio de fase de terceira ordem modificado |
Country Status (9)
Country | Link |
---|---|
US (1) | US6188739B1 (pt) |
EP (1) | EP1025645B1 (pt) |
AT (1) | ATE211325T1 (pt) |
AU (1) | AU1104399A (pt) |
DE (1) | DE69803091T2 (pt) |
DK (1) | DK1025645T3 (pt) |
ES (1) | ES2169931T3 (pt) |
PT (1) | PT1025645E (pt) |
WO (1) | WO1999021283A1 (pt) |
Families Citing this family (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR100281972B1 (ko) * | 1997-12-23 | 2001-02-15 | 김진찬 | 고정도디지털처리위상동기루프장치및방법 |
US6993106B1 (en) | 1999-08-11 | 2006-01-31 | Broadcom Corporation | Fast acquisition phase locked loop using a current DAC |
US6526113B1 (en) * | 1999-08-11 | 2003-02-25 | Broadcom Corporation | GM cell based control loops |
US6389092B1 (en) * | 1999-08-11 | 2002-05-14 | Newport Communications, Inc. | Stable phase locked loop having separated pole |
US6292061B1 (en) * | 2000-05-01 | 2001-09-18 | Sandcraft, Inc. | Low-voltage CMOS phase-locked loop (PLL) for high-performance microprocessor clock generation |
US6642799B2 (en) * | 2000-11-01 | 2003-11-04 | Primarian, Inc. | Phase lock loop destress circuit |
US7123065B1 (en) * | 2003-06-27 | 2006-10-17 | Cypress Semiconductor Corp. | Method of improving lock acquisition times in systems with a narrow frequency range |
US10056911B2 (en) * | 2015-12-21 | 2018-08-21 | Texas Instruments Incorporated | Continuous coarse-tuned phase locked loop |
Family Cites Families (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3740671A (en) | 1972-04-06 | 1973-06-19 | Nasa | Filter for third-order phase-locked loops |
US5034748A (en) | 1973-12-03 | 1991-07-23 | The United States Of America As Represented By The Secretary Of The Navy | Narrow band automatic phase control tracking circuitry |
US4129748A (en) | 1975-09-10 | 1978-12-12 | Idr, Inc. | Phase locked loop for providing continuous clock phase correction |
JPH0752838B2 (ja) | 1985-03-20 | 1995-06-05 | 株式会社日立製作所 | 集積回路 |
JPS6315530A (ja) | 1986-07-08 | 1988-01-22 | Sumitomo Electric Ind Ltd | デイジタル位相同期ル−プ |
US4712223A (en) | 1986-10-09 | 1987-12-08 | Rockwell International Corporation | Linear all-digital phase locked loop |
US4733197A (en) | 1987-02-19 | 1988-03-22 | Northern Telecom Limited | Extended range phaselocked loop |
NL8702424A (nl) | 1987-10-12 | 1989-05-01 | Philips Nv | Oscillatorschakeling met een faseregellus. |
US4855683A (en) | 1987-11-18 | 1989-08-08 | Bell Communications Research, Inc. | Digital phase locked loop with bounded jitter |
JPH01296733A (ja) | 1988-05-25 | 1989-11-30 | Toshiba Corp | ディジタル形位相同期回路 |
US5008637A (en) | 1989-11-15 | 1991-04-16 | Level One Communications, Inc. | Fully integrated charge pump phase locked loop |
US5057794A (en) | 1991-02-26 | 1991-10-15 | Level One Communications, Inc. | Phase-locked loop with pattern controlled bandwidth circuit |
GB9415185D0 (en) | 1994-07-28 | 1994-09-21 | Thomson Consumer Electronics | Fast acting control system |
-
1997
- 1997-10-21 US US08/954,914 patent/US6188739B1/en not_active Expired - Lifetime
-
1998
- 1998-10-20 PT PT98953757T patent/PT1025645E/pt unknown
- 1998-10-20 AT AT98953757T patent/ATE211325T1/de not_active IP Right Cessation
- 1998-10-20 DK DK98953757T patent/DK1025645T3/da active
- 1998-10-20 DE DE69803091T patent/DE69803091T2/de not_active Expired - Fee Related
- 1998-10-20 AU AU11043/99A patent/AU1104399A/en not_active Abandoned
- 1998-10-20 EP EP98953757A patent/EP1025645B1/en not_active Expired - Lifetime
- 1998-10-20 WO PCT/US1998/022138 patent/WO1999021283A1/en active IP Right Grant
- 1998-10-20 ES ES98953757T patent/ES2169931T3/es not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
AU1104399A (en) | 1999-05-10 |
US6188739B1 (en) | 2001-02-13 |
DE69803091T2 (de) | 2002-08-22 |
ATE211325T1 (de) | 2002-01-15 |
DK1025645T3 (da) | 2002-04-02 |
WO1999021283A1 (en) | 1999-04-29 |
EP1025645B1 (en) | 2001-12-19 |
DE69803091D1 (de) | 2002-01-31 |
EP1025645A1 (en) | 2000-08-09 |
ES2169931T3 (es) | 2002-07-16 |
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