KR970002948B1 - 비트 클럭 재생 장치 - Google Patents
비트 클럭 재생 장치 Download PDFInfo
- Publication number
- KR970002948B1 KR970002948B1 KR1019940010768A KR19940010768A KR970002948B1 KR 970002948 B1 KR970002948 B1 KR 970002948B1 KR 1019940010768 A KR1019940010768 A KR 1019940010768A KR 19940010768 A KR19940010768 A KR 19940010768A KR 970002948 B1 KR970002948 B1 KR 970002948B1
- Authority
- KR
- South Korea
- Prior art keywords
- signal
- output
- data signal
- pulse
- 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 - Fee Related
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Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L7/00—Arrangements for synchronising receiver with transmitter
- H04L7/02—Speed or phase control by the received code signals, the signals containing no special synchronisation information
- H04L7/033—Speed or phase control by the received code signals, the signals containing no special synchronisation information using the transitions of the received signal to control the phase of the synchronising-signal-generating means, e.g. using a phase-locked 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
- H03L7/0807—Details of the phase-locked loop concerning mainly a recovery circuit for the reference signal
-
- 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
- H03L7/10—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
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Synchronisation In Digital Transmission Systems (AREA)
- Stabilization Of Oscillater, Synchronisation, Frequency Synthesizers (AREA)
- Transmission Systems Not Characterized By The Medium Used For Transmission (AREA)
- Circuits Of Receivers In General (AREA)
Abstract
Description
Claims (2)
- 최단 주기 T의 PCM 데이터 신호를 대상으로 하는 비트 클럭 재생 장치에 있어서, 소정의 시정수 조정 신호에 의해 펄스 폭을 조정하는 에지 검출형 플립 플롭 회로를 포함하고, 상기 PCM 데이타 신호를 입력하여 상기 최단 주기T의 1/2에 상당하는 펄스 폭의 펄스 신호를 생성하여 출력하는 T/2 펄스 발생기, 기준 발진 주파수를 2/T로 하고, 소정의 주파수 제어 신호를 수신하여 상기 주파수 제어 신호의 전위 레벨에 따라 발진 주파수를 제어하는 전압 제어 발진기의 발진 주파수를 1/2로 분주하여 생성되는 분주 신호를 출력하는 1/2 분주기, 상기 T/2 펄스 발생기에서 출력되는 펄스 신호와, 상기 1/2 분주기에서 출력되는 분주 신호를 입력하고, 이들 양쪽 신호의 위상 차를 검출하여 소정의 위상 비교 펄스 신호를 출력하는 EXOR 회로, 상기 위상 비교 펄스 신호를 입력해서 평활화하여 얻어지는 평균 전압치를 소정의 기준 전압과 비교 조합하여, 상기 전압 비교 결과에 따른 전위 레벨을 상기 주파수 제어 신호로서 출력하는 루프 필터·전압 비교기, 상기 분주 신호를 입력하고, 클럭 단자에 입력되는 상기 전압 제어 발진기의 발진 출력을 통해 상기 분주 신호의 위상을 T/4 지연시켜 비트 클럭으로서 출력하는 제1 D형 플립 플롭 회로, 및 상기 제1 D형 플림 플롭 회로에서 출력되는 비트 클럭을 통해 상기 PCM 데이타 신호를 입력하여 래치하고, 데이터 출력신호로서 출력하는 제2 D형 플립 플롭 회로를 구비하는 것을 특징으로 하는 비트 클럭 재생 장치.
- 제1항에 있어서, 상기 T/2 펄스 발생기가 상기 PCM 데이타 신호의 에지를 검출하여 상기 에지의 타이밍에서 기동하고, 상기 시정수 조정 신호를 통해 조정되는 펄스 폭의 펄스 신호를 생성하여 출력하는 모노 멀티바이브레이터, 상기 PCM 데이타 신호를 입력하고, 상기 모노 멀티바이브레이터에서 출력되는 펄스 신호를 통해 상기 PCM 데이타 신호의 위상을 T/2 지연시켜 출력하는 D형 플립 플롭 회로, 및 상기 PCM 데이타 신호와 상기 D형 플립 플롭 회로에서 출력되는 지연 데이터 신호를 입력하여 이들 양쪽 신호의 배타적 논리 합을 취하여 출력하는 EXOR 회로를 구비하여 구성되는 것을 특징으로 하는 비트 클럭 재생 장치.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP5113559A JP2859082B2 (ja) | 1993-05-17 | 1993-05-17 | ビットクロック再生装置 |
JP93-113559 | 1993-05-17 |
Publications (2)
Publication Number | Publication Date |
---|---|
KR940027385A KR940027385A (ko) | 1994-12-10 |
KR970002948B1 true KR970002948B1 (ko) | 1997-03-13 |
Family
ID=14615358
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
KR1019940010768A Expired - Fee Related KR970002948B1 (ko) | 1993-05-17 | 1994-05-17 | 비트 클럭 재생 장치 |
Country Status (3)
Country | Link |
---|---|
US (1) | US5471502A (ko) |
JP (1) | JP2859082B2 (ko) |
KR (1) | KR970002948B1 (ko) |
Families Citing this family (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP3340558B2 (ja) * | 1994-06-14 | 2002-11-05 | 松下電器産業株式会社 | 信号検出装置およびそれを用いたクロック再生装置 |
JP2836555B2 (ja) * | 1995-12-15 | 1998-12-14 | 日本電気株式会社 | Pll回路 |
KR100202545B1 (ko) * | 1995-12-18 | 1999-06-15 | 구자홍 | 기록매체의 재생신호 판정 장치 및 방법 |
US5790612A (en) * | 1996-02-29 | 1998-08-04 | Silicon Graphics, Inc. | System and method to reduce jitter in digital delay-locked loops |
US5914965A (en) * | 1997-05-08 | 1999-06-22 | Northern Telecom Limited | Serial output self-test circuit |
DE10132232C1 (de) * | 2001-06-29 | 2002-11-21 | Infineon Technologies Ag | Phasendetektorschaltung für einen Phasenregelkreis |
EP1619819A4 (en) * | 2003-05-01 | 2010-08-04 | Mitsubishi Electric Corp | CLOCK DATA RECOVERY CIRCUIT |
US7167685B2 (en) * | 2004-06-30 | 2007-01-23 | Nokia Corporation | Frequency division |
CN105792422B (zh) * | 2016-04-11 | 2017-06-30 | 电子科技大学 | 一种用于led的开关切换电路 |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS60145745A (ja) * | 1984-01-09 | 1985-08-01 | Nec Corp | バイフェーズ符号クロック抽出回路 |
US4984255A (en) * | 1989-11-15 | 1991-01-08 | National Semiconductor Corporation | Edge transition insensitive delay line system and method |
US5208839A (en) * | 1991-05-28 | 1993-05-04 | General Electric Company | Symbol synchronizer for sampled signals |
-
1993
- 1993-05-17 JP JP5113559A patent/JP2859082B2/ja not_active Expired - Fee Related
-
1994
- 1994-05-17 KR KR1019940010768A patent/KR970002948B1/ko not_active Expired - Fee Related
- 1994-05-17 US US08/243,707 patent/US5471502A/en not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
JP2859082B2 (ja) | 1999-02-17 |
JPH06326697A (ja) | 1994-11-25 |
US5471502A (en) | 1995-11-28 |
KR940027385A (ko) | 1994-12-10 |
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