JPS5592042A - Phase lock loop circuit - Google Patents

Phase lock loop circuit

Info

Publication number
JPS5592042A
JPS5592042A JP16524178A JP16524178A JPS5592042A JP S5592042 A JPS5592042 A JP S5592042A JP 16524178 A JP16524178 A JP 16524178A JP 16524178 A JP16524178 A JP 16524178A JP S5592042 A JPS5592042 A JP S5592042A
Authority
JP
Japan
Prior art keywords
operated
comparator
lock loop
phase lock
rise
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.)
Granted
Application number
JP16524178A
Other languages
Japanese (ja)
Other versions
JPS5915218B2 (en
Inventor
Yoshifumi Toda
Kiyoaki Hodohara
Hideaki Ito
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
Application filed by Fujitsu Ltd filed Critical Fujitsu Ltd
Priority to JP53165241A priority Critical patent/JPS5915218B2/en
Publication of JPS5592042A publication Critical patent/JPS5592042A/en
Publication of JPS5915218B2 publication Critical patent/JPS5915218B2/en
Expired 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

Abstract

PURPOSE:To make it possible to operate a phase lock loop in a very high speed by combining and using FFs which are operated only by rise and break of clock pulses. CONSTITUTION:Input signal IN is subjected to 1/N frequency division and is sent to phase comparator PC, and the output of voltage control oscillator VCO is applied to comparator PC through frequency converter PCT and a 1/N frequency divider. The output of comparator PC is used for frequency control of oscillator VCO through an LPF. In this case, in comparator PC, FF3 is operated at rise and break points of a pulse to be divided by ''2'', and FF4 uses the output of FF4 to be operated at the rise or break point of the pulse, and outputs of FF3 and FF4 are given to exclusive OR circuit EXEOR. As a result, the phase lock loop can be operated in a very high speed.
JP53165241A 1978-12-31 1978-12-31 phase lock loop circuit Expired JPS5915218B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP53165241A JPS5915218B2 (en) 1978-12-31 1978-12-31 phase lock loop circuit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP53165241A JPS5915218B2 (en) 1978-12-31 1978-12-31 phase lock loop circuit

Publications (2)

Publication Number Publication Date
JPS5592042A true JPS5592042A (en) 1980-07-12
JPS5915218B2 JPS5915218B2 (en) 1984-04-07

Family

ID=15808546

Family Applications (1)

Application Number Title Priority Date Filing Date
JP53165241A Expired JPS5915218B2 (en) 1978-12-31 1978-12-31 phase lock loop circuit

Country Status (1)

Country Link
JP (1) JPS5915218B2 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60256227A (en) * 1984-05-22 1985-12-17 エヌ・ベー・フイリツプス・フルーイランペンフアブリケン Electric circuit device having phase control circuit
US6194916B1 (en) 1997-01-17 2001-02-27 Fujitsu Limited Phase comparator circuit for high speed signals in delay locked loop circuit

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60256227A (en) * 1984-05-22 1985-12-17 エヌ・ベー・フイリツプス・フルーイランペンフアブリケン Electric circuit device having phase control circuit
JPH0628337B2 (en) * 1984-05-22 1994-04-13 エヌ・ベー・フイリツプス・フルーイランペンフアブリケン Electrical circuit device with phase control circuit
US6194916B1 (en) 1997-01-17 2001-02-27 Fujitsu Limited Phase comparator circuit for high speed signals in delay locked loop circuit

Also Published As

Publication number Publication date
JPS5915218B2 (en) 1984-04-07

Similar Documents

Publication Publication Date Title
JPS5534851A (en) Phase detector
ES464023A1 (en) Digital phase lock loop circuit and method
JPS5592042A (en) Phase lock loop circuit
JPS5255361A (en) Variable frequency oscillator
JPS5227342A (en) Signal generator
JPS56110363A (en) Multiplexing circuit using pll
JPS57174939A (en) Phase locked loop circuit
JPS533765A (en) Phase synchronous oscillating unit
JPS52129358A (en) Wide-band phase locked loop circuit
JPS5333038A (en) Phase synchronizing oscillator
SE7706449L (en) TRANSMITTER RECEIVER, SPECIAL FOR RADIOELECTRIC DISTANCE SATURATION
ES8306299A1 (en) Frequency converter and phase locked loop circuit
JPS5643832A (en) Phase synchronizing circuit
JPS5335466A (en) Variable frequency oscillator circuit
JPS5787241A (en) Phase synchronizing circuit for optional frequency conversion
JPS5776930A (en) Frequency shift signal generating system using pll
JPS57185707A (en) Frequency conversion circuit
JPS529354A (en) Phase lock circuit
RU2022459C1 (en) Digital shaper of variable-frequency sine-wave oscillations
JPS56149827A (en) 90 phase difference signal generating circuit
JPS56119533A (en) Pll circuit
JPS52106257A (en) Frequency synthesizer
JPS5368553A (en) Phase synchronous loop
JPS6484948A (en) Demodulation system for frequency modulation signal
JPS5687924A (en) Phase comparison circuit