JPS5672544A - Frequency synthesizer system receiver - Google Patents

Frequency synthesizer system receiver

Info

Publication number
JPS5672544A
JPS5672544A JP14917579A JP14917579A JPS5672544A JP S5672544 A JPS5672544 A JP S5672544A JP 14917579 A JP14917579 A JP 14917579A JP 14917579 A JP14917579 A JP 14917579A JP S5672544 A JPS5672544 A JP S5672544A
Authority
JP
Japan
Prior art keywords
voltage control
control oscillator
omegan
becomes
frequency signal
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
JP14917579A
Other languages
Japanese (ja)
Inventor
Takeshi Sakai
Tsutomu Ogishi
Junji Sato
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.)
Sanyo Electric Co Ltd
Original Assignee
Sanyo 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 Sanyo Electric Co Ltd filed Critical Sanyo Electric Co Ltd
Priority to JP14917579A priority Critical patent/JPS5672544A/en
Publication of JPS5672544A publication Critical patent/JPS5672544A/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
    • H03L7/16—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
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03L—AUTOMATIC CONTROL, STARTING, SYNCHRONISATION, OR STABILISATION OF GENERATORS OF ELECTRONIC OSCILLATIONS OR PULSES
    • H03L2207/00—Indexing scheme relating to automatic control of frequency or phase and to synchronisation
    • H03L2207/10—Indirect frequency synthesis using a frequency multiplier in the phase-locked loop or in the reference signal path

Abstract

PURPOSE:To shorten the lock-up time of the PLL and make it possible to finely adjust the local oscillation frequency, by multiplying an oscillation output of the voltage control oscillator, and making it a reference frequency signal. CONSTITUTION:An oscillation output of the voltage control oscillator 13 is multiplied by M with the multiplier 16, and it is made a reference frequency signal M. fr (provided that fr is a conventional reference frequency signal). And when the oscillation output of the voltage control oscillator 13 is made fv, the dividing ratio can be made same as the conventional method, and the minimum variation frequency of the local oscillation frequency also becomes same as before. On the other hand, the natural angle frequency omegan' becomes the gain constant of omegan'=(M. KV.KP.KL/N)<12>=M<12>.omegan (provided that KV, KP and KL show the voltage control oscillator 13, the phase comparator 12 and the LPF15), it becomes M<12> times, and therefore the lock-up time can be made M<12> times.
JP14917579A 1979-11-16 1979-11-16 Frequency synthesizer system receiver Pending JPS5672544A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP14917579A JPS5672544A (en) 1979-11-16 1979-11-16 Frequency synthesizer system receiver

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP14917579A JPS5672544A (en) 1979-11-16 1979-11-16 Frequency synthesizer system receiver

Publications (1)

Publication Number Publication Date
JPS5672544A true JPS5672544A (en) 1981-06-16

Family

ID=15469430

Family Applications (1)

Application Number Title Priority Date Filing Date
JP14917579A Pending JPS5672544A (en) 1979-11-16 1979-11-16 Frequency synthesizer system receiver

Country Status (1)

Country Link
JP (1) JPS5672544A (en)

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