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GB2347287B - Digital phase control circuit and pll circuit - Google Patents

Digital phase control circuit and pll circuit

Info

Publication number
GB2347287B
GB2347287B GB0012830A GB0012830A GB2347287B GB 2347287 B GB2347287 B GB 2347287B GB 0012830 A GB0012830 A GB 0012830A GB 0012830 A GB0012830 A GB 0012830A GB 2347287 B GB2347287 B GB 2347287B
Authority
GB
United Kingdom
Prior art keywords
phase control
digital phase
circuit
control circuit
pll
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
Application number
GB0012830A
Other versions
GB0012830D0 (en
GB2347287A (en
Inventor
Toru Takaishi
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.)
Fujitsu Ltd
Original Assignee
Fujitsu Ltd
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
Priority claimed from JP24032095A external-priority patent/JP3331104B2/en
Application filed by Fujitsu Ltd filed Critical Fujitsu Ltd
Publication of GB0012830D0 publication Critical patent/GB0012830D0/en
Publication of GB2347287A publication Critical patent/GB2347287A/en
Application granted granted Critical
Publication of GB2347287B publication Critical patent/GB2347287B/en
Anticipated expiration legal-status Critical
Expired - Fee Related 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
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03K—PULSE TECHNIQUE
    • H03K3/00—Circuits for generating electric pulses; Monostable, bistable or multistable circuits
    • H03K3/02—Generators characterised by the type of circuit or by the means used for producing pulses
    • H03K3/027—Generators characterised by the type of circuit or by the means used for producing pulses by the use of logic circuits, with internal or external positive feedback
    • H03K3/03—Astable circuits
    • 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
    • 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
    • H03L7/113—Details of the phase-locked loop for assuring initial synchronisation or for broadening the capture range using frequency discriminator
GB0012830A 1995-09-19 1996-04-11 Digital phase control circuit and pll circuit Expired - Fee Related GB2347287B (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP24032095A JP3331104B2 (en) 1995-09-19 1995-09-19 Digital PLL circuit, digital frequency adjustment circuit and digital phase adjustment circuit used for the same, and semiconductor device
GB9607525A GB2305558B (en) 1995-09-19 1996-04-11 Digital frequency control circuit phase control circuit and PLL circuit

Publications (3)

Publication Number Publication Date
GB0012830D0 GB0012830D0 (en) 2000-07-19
GB2347287A GB2347287A (en) 2000-08-30
GB2347287B true GB2347287B (en) 2000-10-25

Family

ID=26309102

Family Applications (1)

Application Number Title Priority Date Filing Date
GB0012830A Expired - Fee Related GB2347287B (en) 1995-09-19 1996-04-11 Digital phase control circuit and pll circuit

Country Status (1)

Country Link
GB (1) GB2347287B (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FI113113B (en) 2001-11-20 2004-02-27 Nokia Corp Method and procedure for synchronizing integrated circuits

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0091200A2 (en) * 1982-04-05 1983-10-12 Laser Magnetic Storage International Company Clock recovery apparatus
JPH05227017A (en) * 1992-02-10 1993-09-03 Nec Corp Convergent mode switching type digital pll device
US5343169A (en) * 1992-03-31 1994-08-30 Sgs-Thomson Microelectronics S.A. Frequency locked loop

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0091200A2 (en) * 1982-04-05 1983-10-12 Laser Magnetic Storage International Company Clock recovery apparatus
JPH05227017A (en) * 1992-02-10 1993-09-03 Nec Corp Convergent mode switching type digital pll device
US5343169A (en) * 1992-03-31 1994-08-30 Sgs-Thomson Microelectronics S.A. Frequency locked loop

Also Published As

Publication number Publication date
GB0012830D0 (en) 2000-07-19
GB2347287A (en) 2000-08-30

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Legal Events

Date Code Title Description
732E Amendments to the register in respect of changes of name or changes affecting rights (sect. 32/1977)
PCNP Patent ceased through non-payment of renewal fee

Effective date: 20100411