DE68909103T2 - Phasenregelkreis mit in der Zeit gesteuerter Bandbreite. - Google Patents

Phasenregelkreis mit in der Zeit gesteuerter Bandbreite.

Info

Publication number
DE68909103T2
DE68909103T2 DE89303660T DE68909103T DE68909103T2 DE 68909103 T2 DE68909103 T2 DE 68909103T2 DE 89303660 T DE89303660 T DE 89303660T DE 68909103 T DE68909103 T DE 68909103T DE 68909103 T2 DE68909103 T2 DE 68909103T2
Authority
DE
Germany
Prior art keywords
locked loop
phase locked
time controlled
controlled bandwidth
bandwidth
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
DE89303660T
Other languages
English (en)
Other versions
DE68909103D1 (de
Inventor
Michael D Leis
Gary Stewart Engleson
Bruce James Lawrence
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.)
Quantum Corp
Original Assignee
Digital Equipment 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 Digital Equipment Corp filed Critical Digital Equipment Corp
Application granted granted Critical
Publication of DE68909103D1 publication Critical patent/DE68909103D1/de
Publication of DE68909103T2 publication Critical patent/DE68909103T2/de
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
    • 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
    • H03L7/1072—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 by changing characteristics of the charge pump, e.g. changing the gain
    • 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
    • H03L7/0891—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 the up-down pulses controlling source and sink current generators, e.g. a charge pump
    • H03L7/0895—Details of the current generators
    • H03L7/0898—Details of the current generators the source or sink current values being variable
DE89303660T 1988-05-12 1989-04-13 Phasenregelkreis mit in der Zeit gesteuerter Bandbreite. Expired - Fee Related DE68909103T2 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US19333788A 1988-05-12 1988-05-12

Publications (2)

Publication Number Publication Date
DE68909103D1 DE68909103D1 (de) 1993-10-21
DE68909103T2 true DE68909103T2 (de) 1994-03-03

Family

ID=22713233

Family Applications (1)

Application Number Title Priority Date Filing Date
DE89303660T Expired - Fee Related DE68909103T2 (de) 1988-05-12 1989-04-13 Phasenregelkreis mit in der Zeit gesteuerter Bandbreite.

Country Status (4)

Country Link
EP (1) EP0341834B1 (de)
JP (1) JPH0793619B2 (de)
CA (1) CA1310746C (de)
DE (1) DE68909103T2 (de)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB9213624D0 (en) * 1992-06-26 1992-08-12 Motorola Israel Ltd A phase lock loop
EP0954103A1 (de) * 1998-04-22 1999-11-03 Lucent Technologies Inc. Verzögerungsregelschleife und Betriebsverfahren dafür

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4231071A (en) * 1978-07-17 1980-10-28 Digital Equipment Corporation Reader for data recorded on magnetic disks at plural densities
JPS5613853A (en) * 1979-07-13 1981-02-10 Mitsubishi Electric Corp Band variable type timing reproducing circuit
JPS57141137A (en) * 1981-02-26 1982-09-01 Fujitsu Ltd Phase synchronous oscillator
JPS60216648A (ja) * 1984-04-12 1985-10-30 Ricoh Co Ltd 信号同期方式
JPS62253224A (ja) * 1986-01-14 1987-11-05 Toshiba Corp 位相同期回路
JPS62230242A (ja) * 1986-03-31 1987-10-08 Yokogawa Electric Corp ノンリタ−ンゼロデ−タ受信回路
JPS6356018A (ja) * 1986-08-26 1988-03-10 Fujitsu Ltd Ｐｌｌの同期引き込み方式

Also Published As

Publication number Publication date
JPH0793619B2 (ja) 1995-10-09
JPH0221738A (ja) 1990-01-24
EP0341834A2 (de) 1989-11-15
DE68909103D1 (de) 1993-10-21
CA1310746C (en) 1992-11-24
EP0341834B1 (de) 1993-09-15
EP0341834A3 (en) 1990-12-19

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Legal Events

Date Code Title Description
8364 No opposition during term of opposition
8327 Change in the person/name/address of the patent owner

Owner name: QUANTUM CORP., MILPITAS, CALIF., US

8339 Ceased/non-payment of the annual fee