GB2281827B - Oscillation circuit and PLL IC - Google Patents

Oscillation circuit and PLL IC

Info

Publication number
GB2281827B
GB2281827B GB9416245A GB9416245A GB2281827B GB 2281827 B GB2281827 B GB 2281827B GB 9416245 A GB9416245 A GB 9416245A GB 9416245 A GB9416245 A GB 9416245A GB 2281827 B GB2281827 B GB 2281827B
Authority
GB
United Kingdom
Prior art keywords
pll
oscillation circuit
oscillation
circuit
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
GB9416245A
Other versions
GB9416245D0 (en
GB2281827A (en
Inventor
Yoshitaka Hirose
Jun Sugawara
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.)
Alps Alpine Co Ltd
Original Assignee
Alps 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 Alps Electric Co Ltd filed Critical Alps Electric Co Ltd
Publication of GB9416245D0 publication Critical patent/GB9416245D0/en
Publication of GB2281827A publication Critical patent/GB2281827A/en
Application granted granted Critical
Publication of GB2281827B publication Critical patent/GB2281827B/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
    • H04B1/38—Transceivers, i.e. devices in which transmitter and receiver form a structural unit and in which at least one part is used for functions of transmitting and receiving
    • H04B1/40—Circuits
    • H04B1/403—Circuits using the same oscillator for generating both the transmitter frequency and the receiver local oscillator frequency
    • H04B1/405—Circuits using the same oscillator for generating both the transmitter frequency and the receiver local oscillator frequency with multiple discrete channels
    • 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
    • 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
    • H03L7/14—Details of the phase-locked loop for assuring constant frequency when supply or correction voltages fail or are interrupted
    • 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
    • H03L7/095—Details of the phase-locked loop concerning mainly the frequency- or phase-detection arrangement including the filtering or amplification of its output signal using a lock detector

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Stabilization Of Oscillater, Synchronisation, Frequency Synthesizers (AREA)
  • Transceivers (AREA)
  • Transmitters (AREA)
  • Circuits Of Receivers In General (AREA)
GB9416245A 1993-09-03 1994-08-11 Oscillation circuit and PLL IC Expired - Fee Related GB2281827B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP5220174A JPH0774671A (en) 1993-09-03 1993-09-03 Oscillation circuit and pll ic for transmitter-receiver

Publications (3)

Publication Number Publication Date
GB9416245D0 GB9416245D0 (en) 1994-10-05
GB2281827A GB2281827A (en) 1995-03-15
GB2281827B true GB2281827B (en) 1998-01-21

Family

ID=16747050

Family Applications (1)

Application Number Title Priority Date Filing Date
GB9416245A Expired - Fee Related GB2281827B (en) 1993-09-03 1994-08-11 Oscillation circuit and PLL IC

Country Status (4)

Country Link
JP (1) JPH0774671A (en)
DE (1) DE4431172C2 (en)
DK (1) DK174133B1 (en)
GB (1) GB2281827B (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19528069C2 (en) * 1995-07-31 1998-10-15 Siemens Ag Radio
DE19736464A1 (en) * 1997-08-21 1999-03-04 Siemens Ag Method and device for setting the oscillation frequency of an oscillator
DE19736463C2 (en) * 1997-08-21 2001-02-22 Siemens Ag Method and device for setting the oscillation frequency of an oscillator
JP3358619B2 (en) * 1999-12-06 2002-12-24 セイコーエプソン株式会社 Temperature compensated oscillator, method of controlling temperature compensated oscillator, and wireless communication device
US9276622B2 (en) 2013-03-14 2016-03-01 Qualcomm Incorporated Local oscillator (LO) generator with multi-phase divider and phase locked loop

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4988955A (en) * 1989-02-17 1991-01-29 Kabushiki Kaisha Toshiba Phase-locked loop apparatus

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4988955A (en) * 1989-02-17 1991-01-29 Kabushiki Kaisha Toshiba Phase-locked loop apparatus

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
JAPIO abstract of JP 050308285 (NEC) 19.11.93 (see abstract) *
JAPIO abstract of JP050308284 (NEC) 19.11.93 (see abstract) *

Also Published As

Publication number Publication date
DE4431172C2 (en) 1999-03-18
DK100994A (en) 1995-03-04
DE4431172A1 (en) 1995-03-09
DK174133B1 (en) 2002-07-08
GB9416245D0 (en) 1994-10-05
GB2281827A (en) 1995-03-15
JPH0774671A (en) 1995-03-17

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Legal Events

Date Code Title Description
PCNP Patent ceased through non-payment of renewal fee

Effective date: 20050811