JPH0582089B2 - - Google Patents

Info

Publication number
JPH0582089B2
JPH0582089B2 JP58221558A JP22155883A JPH0582089B2 JP H0582089 B2 JPH0582089 B2 JP H0582089B2 JP 58221558 A JP58221558 A JP 58221558A JP 22155883 A JP22155883 A JP 22155883A JP H0582089 B2 JPH0582089 B2 JP H0582089B2
Authority
JP
Japan
Prior art keywords
circuit
low
pass filter
output
power supply
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 - Lifetime
Application number
JP58221558A
Other languages
English (en)
Japanese (ja)
Other versions
JPS60114030A (ja
Inventor
Shigeki Saito
Shuji Urabe
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.)
NTT Docomo Inc
Nippon Telegraph and Telephone Corp
Original Assignee
Nippon Telegraph and Telephone Corp
NTT Mobile Communications Networks Inc
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 Nippon Telegraph and Telephone Corp, NTT Mobile Communications Networks Inc filed Critical Nippon Telegraph and Telephone Corp
Priority to JP58221558A priority Critical patent/JPS60114030A/ja
Publication of JPS60114030A publication Critical patent/JPS60114030A/ja
Publication of JPH0582089B2 publication Critical patent/JPH0582089B2/ja
Granted 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
    • H03L7/0802—Details of the phase-locked loop the loop being adapted for reducing power consumption
    • 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
    • H03L7/16—Indirect frequency synthesis, i.e. generating a desired one of a number of predetermined frequencies using a frequency- or phase-locked loop
    • H03L7/18—Indirect frequency synthesis, i.e. generating a desired one of a number of predetermined frequencies using a frequency- or phase-locked loop using a frequency divider or counter in the loop
    • H03L7/197—Indirect frequency synthesis, i.e. generating a desired one of a number of predetermined frequencies using a frequency- or phase-locked loop using a frequency divider or counter in the loop a time difference being used for locking the loop, the counter counting between numbers which are variable in time or the frequency divider dividing by a factor variable in time, e.g. for obtaining fractional frequency division
    • H03L7/199—Indirect frequency synthesis, i.e. generating a desired one of a number of predetermined frequencies using a frequency- or phase-locked loop using a frequency divider or counter in the loop a time difference being used for locking the loop, the counter counting between numbers which are variable in time or the frequency divider dividing by a factor variable in time, e.g. for obtaining fractional frequency division with reset of the frequency divider or the counter, e.g. for assuring initial synchronisation
    • 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

Landscapes

  • Stabilization Of Oscillater, Synchronisation, Frequency Synthesizers (AREA)
JP58221558A 1983-11-25 1983-11-25 間欠発振形周波数シンセサイザ回路 Granted JPS60114030A (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP58221558A JPS60114030A (ja) 1983-11-25 1983-11-25 間欠発振形周波数シンセサイザ回路

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP58221558A JPS60114030A (ja) 1983-11-25 1983-11-25 間欠発振形周波数シンセサイザ回路

Publications (2)

Publication Number Publication Date
JPS60114030A JPS60114030A (ja) 1985-06-20
JPH0582089B2 true JPH0582089B2 (enExample) 1993-11-17

Family

ID=16768603

Family Applications (1)

Application Number Title Priority Date Filing Date
JP58221558A Granted JPS60114030A (ja) 1983-11-25 1983-11-25 間欠発振形周波数シンセサイザ回路

Country Status (1)

Country Link
JP (1) JPS60114030A (enExample)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2710969B2 (ja) * 1988-12-05 1998-02-10 三菱電機株式会社 位相同期ループ装置
JPH03273712A (ja) * 1990-03-22 1991-12-04 Mitsubishi Electric Corp Ｐｌｌ回路
US10778235B2 (en) * 2018-10-28 2020-09-15 Nuvoton Technology Corporation Intermittent tuning of an oscillator

Also Published As

Publication number Publication date
JPS60114030A (ja) 1985-06-20

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