BR9704663A - Sintetizador de frequência de baixa voltagem - Google Patents
Sintetizador de frequência de baixa voltagemInfo
- Publication number
- BR9704663A BR9704663A BR9704663A BR9704663A BR9704663A BR 9704663 A BR9704663 A BR 9704663A BR 9704663 A BR9704663 A BR 9704663A BR 9704663 A BR9704663 A BR 9704663A BR 9704663 A BR9704663 A BR 9704663A
- Authority
- BR
- Brazil
- Prior art keywords
- low
- frequency synthesizer
- voltage frequency
- voltage
- synthesizer
- Prior art date
Links
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
- H03L7/0802—Details of the phase-locked loop the loop being adapted for reducing power consumption
-
- 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
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US08/713,051 US5838180A (en) | 1996-09-12 | 1996-09-12 | Low-voltage frequency synthesizer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| BR9704663A true BR9704663A (pt) | 1999-03-16 |
Family
ID=24864551
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BR9704663A BR9704663A (pt) | 1996-09-12 | 1997-09-08 | Sintetizador de frequência de baixa voltagem |
Country Status (3)
| Country | Link |
|---|---|
| US (1) | US5838180A (pt) |
| EP (1) | EP0829968A3 (pt) |
| BR (1) | BR9704663A (pt) |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6157821A (en) * | 1997-10-23 | 2000-12-05 | Ericsson Inc. | Voltage step up for a low voltage frequency synthesizer architecture |
| EP1269631B1 (de) | 2000-04-03 | 2007-02-21 | Siemens Aktiengesellschaft | Verfahren zum betrieb eines oszillators sowie elektrische schaltungsanordnung dafür und phasenregelschleife |
| US6525521B2 (en) * | 2000-08-18 | 2003-02-25 | Texas Instruments Incorporated | Sample and hold phase detector having low spurious performance and method |
| DE10139112B4 (de) * | 2001-08-09 | 2004-12-09 | Texas Instruments Deutschland Gmbh | Spannungsgesteuerte Oszillatorschaltung |
| US8169241B2 (en) | 2008-01-15 | 2012-05-01 | Atmel Rousset S.A.S. | Proportional phase comparator and method for phase-aligning digital signals |
| US7928806B2 (en) * | 2008-12-18 | 2011-04-19 | Electronics And Telecommunications Research Institute | Low voltage frequency synthesizer using boosting method for power supply voltage of charge pump |
| NL1043676B1 (nl) * | 2020-06-04 | 2022-01-26 | Zelectronix Holding Bv | Above supply pll-charge pump |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS621322A (ja) * | 1985-06-27 | 1987-01-07 | Nec Corp | 周波数シンセサイザ |
| US5168245A (en) * | 1991-10-30 | 1992-12-01 | International Business Machines Corporation | Monolithic digital phaselock loop circuit having an expanded pull-in range |
| JP2770659B2 (ja) * | 1992-06-26 | 1998-07-02 | 日本電気株式会社 | Ｐｌｌ回路 |
| US5315270A (en) * | 1992-08-28 | 1994-05-24 | At&T Bell Laboratories | Phase-locked loop system with compensation for data-transition-dependent variations in loop gain |
| GB2278747B (en) * | 1993-05-18 | 1997-12-03 | Roke Manor Research | Improvements in or relating to frequency/phase comparators |
| US5623523A (en) * | 1994-11-07 | 1997-04-22 | Motorola, Inc. | Method and apparatus for increasing voltage in a charge pump used in a phase locked loop |
| US5469120A (en) * | 1994-12-07 | 1995-11-21 | Lsi Logic Corporation | High performance voltage controlled oscillator |
-
1996
- 1996-09-12 US US08/713,051 patent/US5838180A/en not_active Expired - Lifetime
-
1997
- 1997-09-02 EP EP97306746A patent/EP0829968A3/en not_active Withdrawn
- 1997-09-08 BR BR9704663A patent/BR9704663A/pt not_active Application Discontinuation
Also Published As
| Publication number | Publication date |
|---|---|
| EP0829968A3 (en) | 1999-04-21 |
| US5838180A (en) | 1998-11-17 |
| EP0829968A2 (en) | 1998-03-18 |
| MX9706858A (es) | 1998-07-31 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| FA10 | Dismissal: dismissal - article 33 of industrial property law | ||
| B11Y | Definitive dismissal - extension of time limit for request of examination expired [chapter 11.1.1 patent gazette] |