JPS5599838A - Phase comparator - Google Patents

Phase comparator

Info

Publication number
JPS5599838A
JPS5599838A JP611979A JP611979A JPS5599838A JP S5599838 A JPS5599838 A JP S5599838A JP 611979 A JP611979 A JP 611979A JP 611979 A JP611979 A JP 611979A JP S5599838 A JPS5599838 A JP S5599838A
Authority
JP
Japan
Prior art keywords
signal
potential
pulse width
capacitor
given
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
JP611979A
Other languages
Japanese (ja)
Other versions
JPS5951788B2 (en
Inventor
Taaki Ichise
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.)
Toshiba Corp
Original Assignee
Toshiba Corp
Tokyo Shibaura Electric Co 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 Toshiba Corp, Tokyo Shibaura Electric Co Ltd filed Critical Toshiba Corp
Priority to JP54006119A priority Critical patent/JPS5951788B2/en
Priority to US06/031,399 priority patent/US4278903A/en
Publication of JPS5599838A publication Critical patent/JPS5599838A/en
Publication of JPS5951788B2 publication Critical patent/JPS5951788B2/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
    • 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

Landscapes

  • Manipulation Of Pulses (AREA)
  • Stabilization Of Oscillater, Synchronisation, Frequency Synthesizers (AREA)

Abstract

PURPOSE:To improve the linearity of output performance and to avoid discontinuity, by outputting the potential of the output transistor according to the leading phase pulse width and lowering the potential according to the leading phase pulse width with the capacitor. CONSTITUTION:The reference frequency signal fR is given to the CP terminal of FF1 as the clock signal, and the variable frequency signal fs is given to the CP terminal of FF2. The phase of the both signal is compared, and when the phase of the signal fs is advanced than that of the signal fR, the capacitor C1 produces the potential in proportion to the phase difference. The transistor T4 outputs the potential according to the leading phase pulse width from the emitter and ground potential is given to the transistor T5 via the resistor R2 selectively with the signal in synchronizing with the signal fR from the emitter, and the potential according to the leading phase pulse width is lowered with the capacitor C2. Thus, the linearity of the output performance corresponding to the phase difference can be improved and the occurrence of the discontinuous points can be avoided.
JP54006119A 1978-04-28 1979-01-24 phase comparator Expired JPS5951788B2 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
JP54006119A JPS5951788B2 (en) 1979-01-24 1979-01-24 phase comparator
US06/031,399 US4278903A (en) 1978-04-28 1979-04-19 Phase comparison circuit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP54006119A JPS5951788B2 (en) 1979-01-24 1979-01-24 phase comparator

Publications (2)

Publication Number Publication Date
JPS5599838A true JPS5599838A (en) 1980-07-30
JPS5951788B2 JPS5951788B2 (en) 1984-12-15

Family

ID=11629611

Family Applications (1)

Application Number Title Priority Date Filing Date
JP54006119A Expired JPS5951788B2 (en) 1978-04-28 1979-01-24 phase comparator

Country Status (1)

Country Link
JP (1) JPS5951788B2 (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4905838A (en) * 1986-04-08 1990-03-06 Idemitsu Petrochemical Co., Ltd. Easily-openable packaging container having notched inner surface layer
US5069355A (en) * 1991-01-23 1991-12-03 Sonoco Products Company Easy-opening composite closure for hermetic sealing of a packaging container by double seaming
US5353943A (en) * 1993-03-15 1994-10-11 Sonoco Products Company Easy-opening composite closure for hermetic sealing of a packaging container by double seaming

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4905838A (en) * 1986-04-08 1990-03-06 Idemitsu Petrochemical Co., Ltd. Easily-openable packaging container having notched inner surface layer
US5069355A (en) * 1991-01-23 1991-12-03 Sonoco Products Company Easy-opening composite closure for hermetic sealing of a packaging container by double seaming
US5353943A (en) * 1993-03-15 1994-10-11 Sonoco Products Company Easy-opening composite closure for hermetic sealing of a packaging container by double seaming

Also Published As

Publication number Publication date
JPS5951788B2 (en) 1984-12-15

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