JPH07297713A - 周波数シンセサイザ - Google Patents

周波数シンセサイザ

Info

Publication number
JPH07297713A
JPH07297713A JP6092557A JP9255794A JPH07297713A JP H07297713 A JPH07297713 A JP H07297713A JP 6092557 A JP6092557 A JP 6092557A JP 9255794 A JP9255794 A JP 9255794A JP H07297713 A JPH07297713 A JP H07297713A
Authority
JP
Japan
Prior art keywords
frequency
signal
division ratio
dividers
frequency division
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.)
Pending
Application number
JP6092557A
Other languages
English (en)
Japanese (ja)
Inventor
Isao Takeuchi
勇雄 竹内
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Sony Corp
Original Assignee
Sony Corp
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Sony Corp filed Critical Sony Corp
Priority to JP6092557A priority Critical patent/JPH07297713A/ja
Priority to GB9508511A priority patent/GB2288931B/en
Priority to KR1019950010085A priority patent/KR100343078B1/ko
Priority to CN95104195A priority patent/CN1099763C/zh
Publication of JPH07297713A publication Critical patent/JPH07297713A/ja
Pending legal-status Critical Current

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
    • H03L7/085—Details of the phase-locked loop concerning mainly the frequency- or phase-detection arrangement including the filtering or amplification of its output signal
    • H03L7/087—Details of the phase-locked loop concerning mainly the frequency- or phase-detection arrangement including the filtering or amplification of its output signal using at least two phase detectors or a frequency and phase detector in the loop
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03J—TUNING RESONANT CIRCUITS; SELECTING RESONANT CIRCUITS
    • H03J7/00—Automatic frequency control; Automatic scanning over a band of frequencies
    • H03J7/18—Automatic scanning over a band of frequencies
    • H03J7/20—Automatic scanning over a band of frequencies where the scanning is accomplished by varying the electrical characteristics of a non-mechanically adjustable element
    • H03J7/28—Automatic scanning over a band of frequencies where the scanning is accomplished by varying the electrical characteristics of a non-mechanically adjustable element using counters or frequency dividers
    • 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
    • H03L7/197—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 a time difference being used for locking the loop, the counter counting between numbers which are variable in time or the frequency divider dividing by a factor variable in time, e.g. for obtaining fractional frequency division
    • H03L7/1974—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 a time difference being used for locking the loop, the counter counting between numbers which are variable in time or the frequency divider dividing by a factor variable in time, e.g. for obtaining fractional frequency division for fractional frequency division

Landscapes

  • Stabilization Of Oscillater, Synchronisation, Frequency Synthesizers (AREA)
JP6092557A 1994-04-28 1994-04-28 周波数シンセサイザ Pending JPH07297713A (ja)

Priority Applications (4)

Application Number Priority Date Filing Date Title
JP6092557A JPH07297713A (ja) 1994-04-28 1994-04-28 周波数シンセサイザ
GB9508511A GB2288931B (en) 1994-04-28 1995-04-26 Frequency synthesizer
KR1019950010085A KR100343078B1 (ko) 1994-04-28 1995-04-27 주파수신세사이저
CN95104195A CN1099763C (zh) 1994-04-28 1995-04-28 频率合成器

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP6092557A JPH07297713A (ja) 1994-04-28 1994-04-28 周波数シンセサイザ

Publications (1)

Publication Number Publication Date
JPH07297713A true JPH07297713A (ja) 1995-11-10

Family

ID=14057725

Family Applications (1)

Application Number Title Priority Date Filing Date
JP6092557A Pending JPH07297713A (ja) 1994-04-28 1994-04-28 周波数シンセサイザ

Country Status (4)

Country Link
JP (1) JPH07297713A (ko)
KR (1) KR100343078B1 (ko)
CN (1) CN1099763C (ko)
GB (1) GB2288931B (ko)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19816656A1 (de) * 1998-04-15 1999-11-04 Suedwestfunk Anstalt Des Oeffe Präzisionsfrequenzteiler
WO2000045515A1 (fr) * 1999-01-29 2000-08-03 Sanyo Electric Co., Ltd. Appareil a boucle a phase asservie (pll) et dispositif de repartition en frequence variable
JP2010251869A (ja) * 2009-04-10 2010-11-04 Fujitsu Ltd 半導体装置

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102959868B (zh) * 2011-05-18 2015-09-16 旭化成微电子株式会社 累加器型n分数锁相环频率合成器及其控制方法
GB2580631B (en) * 2019-01-17 2022-04-27 Cml Microcircuits Uk Ltd Phase-locked loop circuitry

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19816656A1 (de) * 1998-04-15 1999-11-04 Suedwestfunk Anstalt Des Oeffe Präzisionsfrequenzteiler
DE19816656C2 (de) * 1998-04-15 2000-08-10 Suedwestrundfunk Anstalt Des O Verfahren zum Erzeugen von Frequenzen
WO2000045515A1 (fr) * 1999-01-29 2000-08-03 Sanyo Electric Co., Ltd. Appareil a boucle a phase asservie (pll) et dispositif de repartition en frequence variable
US6522183B2 (en) 1999-01-29 2003-02-18 Sanyo Electric Co., Ltd. PLL device and programmable frequency-division device
JP2010251869A (ja) * 2009-04-10 2010-11-04 Fujitsu Ltd 半導体装置

Also Published As

Publication number Publication date
GB2288931A (en) 1995-11-01
KR100343078B1 (ko) 2002-12-16
CN1099763C (zh) 2003-01-22
KR950035076A (ko) 1995-12-30
CN1113053A (zh) 1995-12-06
GB2288931B (en) 1998-09-23
GB9508511D0 (en) 1995-06-14

Similar Documents

Publication Publication Date Title
US5521948A (en) Frequency synthesizer
US6208183B1 (en) Gated delay-locked loop for clock generation applications
US7417510B2 (en) Direct digital interpolative synthesis
US7907023B2 (en) Phase lock loop with a multiphase oscillator
US7356107B2 (en) Flying-adder frequency synthesizer-based digital-controlled oscillator and video decoder including the same
US20030198311A1 (en) Fractional-N frequency synthesizer and method
JPH0897711A (ja) Ｐｌｌ回路
JPH04356804A (ja) デジタル信号合成方法及び装置
JPH07297713A (ja) 周波数シンセサイザ
JP4392949B2 (ja) 周波数シンセサイザ
JPH0834589B2 (ja) サンプリングクロック発生回路
JP3506287B2 (ja) 周波数シンセサイザ及び周波数シンセサイズ方法
JP3109550B2 (ja) 位相同期発振器
JP3417734B2 (ja) 周波数シンセサイザ及び周波数シンセサイズ方法
JP2002280897A (ja) フルディジタルｐｌｌ回路
JP2000148281A (ja) クロック選択回路
JP3161137B2 (ja) Ｐｌｌ回路
JPH06276089A (ja) Ｐｌｌ回路
KR100316533B1 (ko) 다위상 출력 위상고정루프를 이용한 부동소수점 주파수합성장치
JP2569508B2 (ja) Ｐｌｌ回路
JP2000244311A (ja) クロック切替調整方法及び回路
JPH0918340A (ja) 周波数シンセサイザ及び周波数シンセサイズ方法
JPH06261224A (ja) Ｐｌｌ回路
JPH1188156A (ja) クロック生成用ｐｌｌ回路
JPH03250814A (ja) 周波数シンセサイザ