KR100423060B1 - 위상 동기 루프를 이용한 동조 필터 회로 - Google Patents
위상 동기 루프를 이용한 동조 필터 회로 Download PDFInfo
- Publication number
- KR100423060B1 KR100423060B1 KR10-2002-0033228A KR20020033228A KR100423060B1 KR 100423060 B1 KR100423060 B1 KR 100423060B1 KR 20020033228 A KR20020033228 A KR 20020033228A KR 100423060 B1 KR100423060 B1 KR 100423060B1
- Authority
- KR
- South Korea
- Prior art keywords
- frequency
- signal
- controlled oscillator
- voltage
- circuit
- 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.)
- Expired - Lifetime
Links
Classifications
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
- H03H11/00—Networks using active elements
-
- 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
- H03L7/0805—Details of the phase-locked loop the loop being adapted to provide an additional control signal for use outside the loop
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03J—TUNING RESONANT CIRCUITS; SELECTING RESONANT CIRCUITS
- H03J3/00—Continuous tuning
- H03J3/20—Continuous tuning of single resonant circuit by varying inductance only or capacitance only
-
- 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
- H03L7/099—Details of the phase-locked loop concerning mainly the controlled oscillator of 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
- H03L7/16—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 (2)
- 동조 필터 회로에 있어서,입력되는 제어 전압의 레벨에 대응되게 중심 주파수가 변경되는 공진회로를 구비하여 상기 제어 전압의 레벨에 대응하는 주파수를 가지는 신호를 발진하는 전압 제어 발진기와, 상기 전압 제어 발진기의 발진 주파수를 가변적으로 결정하기 위한 주파수 제어 데이터에 대응되게 기준 주파수 신호와 상기 전압 제어 발진기에 의해 발진되는 신호의 위상을 비교하여 위상차에 대응하는 오차 전압 신호를 발생하는 위상 동기 루프 제어기와, 상기 오차 전압 신호를 루프 필터링하여 상기 제어 전압으로서 상기 전압 제어 발진기로 출력하는 루프 필터를 구비하는 위상 동기 루프와,상기 전압 제어 발진기의 상기 공진회로와 동일한 공진 특성을 가지며, 입력 신호에 대하여 상기 제어 전압의 레벨에 대응되게 변경되는 중심 주파수에 따를 주파수대역의 신호만을 통과시켜 출력하는 공진회로를 구비함을 특징으로 하는 동조 필터 회로.
- 제 1항에 있어서, 상기 공진회로가,상기 위상 동기 루프를 구성하고 있는 상기 전압 제어 발진기에 구비되는 공진회로와 동일한 소자 구성을 가지고 있음을 특징으로 하는 동조 필터 회로.
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR10-2002-0033228A KR100423060B1 (ko) | 2002-06-14 | 2002-06-14 | 위상 동기 루프를 이용한 동조 필터 회로 |
US10/282,371 US20030231053A1 (en) | 2002-06-14 | 2002-10-29 | Tunable filter circuit including a phase locked loop |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR10-2002-0033228A KR100423060B1 (ko) | 2002-06-14 | 2002-06-14 | 위상 동기 루프를 이용한 동조 필터 회로 |
Publications (2)
Publication Number | Publication Date |
---|---|
KR20030095689A KR20030095689A (ko) | 2003-12-24 |
KR100423060B1 true KR100423060B1 (ko) | 2004-03-16 |
Family
ID=29728657
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
KR10-2002-0033228A Expired - Lifetime KR100423060B1 (ko) | 2002-06-14 | 2002-06-14 | 위상 동기 루프를 이용한 동조 필터 회로 |
Country Status (2)
Country | Link |
---|---|
US (1) | US20030231053A1 (ko) |
KR (1) | KR100423060B1 (ko) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR101102973B1 (ko) * | 2004-12-30 | 2012-01-05 | 매그나칩 반도체 유한회사 | 위상 고정 루프 |
DE102006052873B4 (de) * | 2006-11-09 | 2013-07-11 | Siemens Aktiengesellschaft | Filter-Schaltungsanordnung |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0340607A (ja) * | 1989-07-07 | 1991-02-21 | Matsushita Electric Ind Co Ltd | シンセサイザ受信機 |
JPH1141031A (ja) * | 1997-07-15 | 1999-02-12 | Mitsubishi Electric Corp | 電圧制御発振器 |
US6304146B1 (en) * | 1998-05-29 | 2001-10-16 | Silicon Laboratories, Inc. | Method and apparatus for synthesizing dual band high-frequency signals for wireless communications |
US6348841B1 (en) * | 1998-09-01 | 2002-02-19 | Qualcomm Incorporated | Wideband voltage controlled oscillator with good noise immunity |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5144156A (en) * | 1990-06-15 | 1992-09-01 | Seiko Epson Corporation | Phase synchronizing circuit with feedback to control charge pump |
US6166606A (en) * | 1999-02-10 | 2000-12-26 | Zilog, Inc. | Phase and frequency locked clock generator |
JP2002353809A (ja) * | 2001-05-28 | 2002-12-06 | Mitsubishi Electric Corp | クロック発生回路 |
-
2002
- 2002-06-14 KR KR10-2002-0033228A patent/KR100423060B1/ko not_active Expired - Lifetime
- 2002-10-29 US US10/282,371 patent/US20030231053A1/en not_active Abandoned
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0340607A (ja) * | 1989-07-07 | 1991-02-21 | Matsushita Electric Ind Co Ltd | シンセサイザ受信機 |
JPH1141031A (ja) * | 1997-07-15 | 1999-02-12 | Mitsubishi Electric Corp | 電圧制御発振器 |
US6304146B1 (en) * | 1998-05-29 | 2001-10-16 | Silicon Laboratories, Inc. | Method and apparatus for synthesizing dual band high-frequency signals for wireless communications |
US6348841B1 (en) * | 1998-09-01 | 2002-02-19 | Qualcomm Incorporated | Wideband voltage controlled oscillator with good noise immunity |
Also Published As
Publication number | Publication date |
---|---|
US20030231053A1 (en) | 2003-12-18 |
KR20030095689A (ko) | 2003-12-24 |
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