KR100511892B1 - 디엘엘장치 - Google Patents
디엘엘장치 Download PDFInfo
- Publication number
- KR100511892B1 KR100511892B1 KR1019970080346A KR19970080346A KR100511892B1 KR 100511892 B1 KR100511892 B1 KR 100511892B1 KR 1019970080346 A KR1019970080346 A KR 1019970080346A KR 19970080346 A KR19970080346 A KR 19970080346A KR 100511892 B1 KR100511892 B1 KR 100511892B1
- Authority
- KR
- South Korea
- Prior art keywords
- signal
- phase comparator
- phase
- output signal
- switch
- Prior art date
Links
- 230000007704 transition Effects 0.000 claims abstract description 15
- 230000001360 synchronised effect Effects 0.000 claims abstract description 5
- 230000000694 effects Effects 0.000 abstract description 2
- 230000003111 delayed effect Effects 0.000 abstract 1
- 238000010586 diagram Methods 0.000 description 8
- 230000001934 delay Effects 0.000 description 4
- 238000005086 pumping Methods 0.000 description 4
- 230000007423 decrease Effects 0.000 description 1
- 238000001514 detection method 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
- H03L7/08—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
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- 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
- H03L7/081—Details of the phase-locked loop provided with an additional controlled phase shifter
Landscapes
- Stabilization Of Oscillater, Synchronisation, Frequency Synthesizers (AREA)
Abstract
Description
Claims (1)
- 외부로부터의 입력 클럭신호(CLK)와 피드백되는 클럭신호(CLKR) 사이의 위상차를 검출하고 그에 따라 카운트하여 업/다운신호(UP/DOWN)를 출력하는 위상비교기(30)와; 상기 위상비교기(30)의 업/다운신호(UP/DOWN)를 입력받아 그 업/다운신호(UP/DOWN) 만큼 시프트되는 시프트레지스터(31)와; 상기 시프트레지스터(31)의 출력신호(Delay_SW)에 따라 출력신호(CLKS)를 소정시간 지연시켜 스위치(33)를 통해 상기 위상비교기(30)에 인가하는 디지털지연부(32)와; 위상이 동기된 후 상기 위상비교기(30)의 업/다운신호(UP/DOWN)의 천이를 검출하여 그에 따라 상기 스위치(33)의 스위치동작을 제어하는 천이검출부(34)와; 상기 천이검출부(34)의 제어신호에 의해 인에이블되어 상기 위상비교기(30)의 업/다운신호(UP/DOWN)를 입력받아 그 업/다운신호(UP/DOWN) 만큼 차지를 펌핑하는 차지펌프부(35)와; 상기 차지펌프부(35)의 출력신호(VCO)에 따라 출력신호(CLKS)를 소정시간 지연시켜 상기 위상비교기(30)에 인가하는 아나로그지연부(36)로 구성한 것을 특징으로 하는 디엘엘장치.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1019970080346A KR100511892B1 (ko) | 1997-12-31 | 1997-12-31 | 디엘엘장치 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1019970080346A KR100511892B1 (ko) | 1997-12-31 | 1997-12-31 | 디엘엘장치 |
Publications (2)
Publication Number | Publication Date |
---|---|
KR19990060125A KR19990060125A (ko) | 1999-07-26 |
KR100511892B1 true KR100511892B1 (ko) | 2005-11-25 |
Family
ID=37306206
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
KR1019970080346A KR100511892B1 (ko) | 1997-12-31 | 1997-12-31 | 디엘엘장치 |
Country Status (1)
Country | Link |
---|---|
KR (1) | KR100511892B1 (ko) |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR20010064098A (ko) * | 1999-12-24 | 2001-07-09 | 박종섭 | 아날로그 지연기를 부착시킨 디지털 지연고정루프 |
KR100437611B1 (ko) * | 2001-09-20 | 2004-06-30 | 주식회사 하이닉스반도체 | 혼합형 지연 록 루프 회로 |
KR20040021479A (ko) * | 2002-09-04 | 2004-03-10 | 삼성전자주식회사 | 락킹 후의 지터성분을 감소시키기 위한 회로를 가지는디지털 dll |
KR101035581B1 (ko) * | 2004-12-30 | 2011-05-19 | 매그나칩 반도체 유한회사 | 다중 위상 클럭 출력용 지연동기루프 |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO1995022206A1 (en) * | 1994-02-15 | 1995-08-17 | Rambus, Inc. | Delay-locked loop |
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1997
- 1997-12-31 KR KR1019970080346A patent/KR100511892B1/ko not_active IP Right Cessation
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO1995022206A1 (en) * | 1994-02-15 | 1995-08-17 | Rambus, Inc. | Delay-locked loop |
Also Published As
Publication number | Publication date |
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KR19990060125A (ko) | 1999-07-26 |
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