CA2230162A1 - Phase locked loop circuit - Google Patents

Phase locked loop circuit

Info

Publication number
CA2230162A1
CA2230162A1 CA 2230162 CA2230162A CA2230162A1 CA 2230162 A1 CA2230162 A1 CA 2230162A1 CA 2230162 CA2230162 CA 2230162 CA 2230162 A CA2230162 A CA 2230162A CA 2230162 A1 CA2230162 A1 CA 2230162A1
Authority
CA
Canada
Prior art keywords
arithmetic processing
temperature information
signal
frequency
outputs
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
CA 2230162
Other languages
French (fr)
Other versions
CA2230162C (en
Inventor
Toshiaki Kobayashi
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.)
NEC Corp
Original Assignee
NEC 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 NEC Corp filed Critical NEC Corp
Publication of CA2230162A1 publication Critical patent/CA2230162A1/en
Application granted granted Critical
Publication of CA2230162C publication Critical patent/CA2230162C/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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

Abstract

A phase locked loop circuit includes a phase comparator, a temperature information output section, an arithmetic processing circuit, and a voltage controlled oscillator. The phase comparator compares the phase of an input signal with that of a frequency division signal obtained by frequency-dividing an output frequency signal. The frequency division signal has the same frequency as that of the input signal. The temperature information output section outputs temperature information based on an ambient temperature. The arithmetic processing circuit performs arithmetic processing by using the temperature information from the temperature information output section and an output from the phase comparator, and outputs the arithmetic processing result as a voltage control signal.
The voltage controlled oscillator outputs an output frequency signal in accordance with the voltage control signal from the arithmetic processing section.
CA 2230162 1997-05-14 1998-02-23 Phase locked loop circuit Expired - Fee Related CA2230162C (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP9124070A JPH10322198A (en) 1997-05-14 1997-05-14 Phase-locked loop circuit
JP124070/'97 1997-05-14

Publications (2)

Publication Number Publication Date
CA2230162A1 true CA2230162A1 (en) 1998-11-14
CA2230162C CA2230162C (en) 2000-11-28

Family

ID=14876205

Family Applications (1)

Application Number Title Priority Date Filing Date
CA 2230162 Expired - Fee Related CA2230162C (en) 1997-05-14 1998-02-23 Phase locked loop circuit

Country Status (2)

Country Link
JP (1) JPH10322198A (en)
CA (1) CA2230162C (en)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2003308133A (en) * 2002-02-18 2003-10-31 Matsushita Electric Ind Co Ltd Multi-phase clock transmission circuit and method
KR100861966B1 (en) 2007-02-02 2008-10-07 엘아이지넥스원 주식회사 Apparatus for stability of yig osc in pll
US7583152B2 (en) * 2008-01-04 2009-09-01 Qualcomm Incorporated Phase-locked loop with self-correcting phase-to-digital transfer function
JP5424473B2 (en) * 2009-08-31 2014-02-26 京セラクリスタルデバイス株式会社 Oscillator circuit
EP2711800B1 (en) * 2012-09-24 2019-11-20 Telefonaktiebolaget LM Ericsson (publ) I/O cell calibration
JP6534200B2 (en) * 2015-02-17 2019-06-26 古野電気株式会社 Reference signal generator
JP2016220157A (en) * 2015-05-26 2016-12-22 セイコーエプソン株式会社 Standard signal generating device

Also Published As

Publication number Publication date
JPH10322198A (en) 1998-12-04
CA2230162C (en) 2000-11-28

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