JPS5394755A - Frequency feedback type circuit - Google Patents

Frequency feedback type circuit

Info

Publication number
JPS5394755A
JPS5394755A JP937577A JP937577A JPS5394755A JP S5394755 A JPS5394755 A JP S5394755A JP 937577 A JP937577 A JP 937577A JP 937577 A JP937577 A JP 937577A JP S5394755 A JPS5394755 A JP S5394755A
Authority
JP
Japan
Prior art keywords
type circuit
feedback type
frequency feedback
frequency
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.)
Pending
Application number
JP937577A
Other languages
Japanese (ja)
Inventor
Takao Seki
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 JP937577A priority Critical patent/JPS5394755A/en
Publication of JPS5394755A publication Critical patent/JPS5394755A/en
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
    • H03L7/089—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

Landscapes

  • Stabilization Of Oscillater, Synchronisation, Frequency Synthesizers (AREA)
  • Signal Processing For Digital Recording And Reproducing (AREA)

Abstract

PURPOSE:To realize the PLL which can operate only during the lead-in operation which is the initial operation of frequency feedback circuit PLL and synchronize to an input frequency reliably, by adding a frequency comparator.
JP937577A 1977-01-31 1977-01-31 Frequency feedback type circuit Pending JPS5394755A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP937577A JPS5394755A (en) 1977-01-31 1977-01-31 Frequency feedback type circuit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP937577A JPS5394755A (en) 1977-01-31 1977-01-31 Frequency feedback type circuit

Publications (1)

Publication Number Publication Date
JPS5394755A true JPS5394755A (en) 1978-08-19

Family

ID=11718702

Family Applications (1)

Application Number Title Priority Date Filing Date
JP937577A Pending JPS5394755A (en) 1977-01-31 1977-01-31 Frequency feedback type circuit

Country Status (1)

Country Link
JP (1) JPS5394755A (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5644426U (en) * 1979-09-17 1981-04-22
JPS5850827A (en) * 1981-09-08 1983-03-25 Fujitsu Ltd Pll circuit
JPS63213168A (en) * 1986-11-07 1988-09-06 アーカイブ・コーポレーション Data smoother
EP0346623A2 (en) * 1988-06-13 1989-12-20 STMicroelectronics S.r.l. A circuit for high-efficiency tuning video frequencies
WO1993003545A1 (en) * 1991-08-06 1993-02-18 Seiko Epson Corporation Phase synchronizing circuit

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5644426U (en) * 1979-09-17 1981-04-22
JPS603458Y2 (en) * 1979-09-17 1985-01-31 東京瓦斯株式会社 Bushing for low temperature liquefied gas tank
JPS5850827A (en) * 1981-09-08 1983-03-25 Fujitsu Ltd Pll circuit
JPH0442752B2 (en) * 1981-09-08 1992-07-14 Fujitsu Ltd
JPS63213168A (en) * 1986-11-07 1988-09-06 アーカイブ・コーポレーション Data smoother
EP0346623A2 (en) * 1988-06-13 1989-12-20 STMicroelectronics S.r.l. A circuit for high-efficiency tuning video frequencies
WO1993003545A1 (en) * 1991-08-06 1993-02-18 Seiko Epson Corporation Phase synchronizing circuit
US5319320A (en) * 1991-08-06 1994-06-07 Seiko Epson Corporation Phase-locked loop having frequency and phase control current pumps

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