JPS5293213A - Frequency synthesizer for transceiver - Google Patents

Frequency synthesizer for transceiver

Info

Publication number
JPS5293213A
JPS5293213A JP948476A JP948476A JPS5293213A JP S5293213 A JPS5293213 A JP S5293213A JP 948476 A JP948476 A JP 948476A JP 948476 A JP948476 A JP 948476A JP S5293213 A JPS5293213 A JP S5293213A
Authority
JP
Japan
Prior art keywords
circuit
transceiver
frequency synthesizer
syncronizing
demultiplying
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
JP948476A
Other languages
Japanese (ja)
Other versions
JPS5855701B2 (en
Inventor
Noriyoshi Ishikawa
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.)
Sharp Corp
Original Assignee
Sharp 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 Sharp Corp filed Critical Sharp Corp
Priority to JP51009484A priority Critical patent/JPS5855701B2/en
Publication of JPS5293213A publication Critical patent/JPS5293213A/en
Publication of JPS5855701B2 publication Critical patent/JPS5855701B2/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03J—TUNING RESONANT CIRCUITS; SELECTING RESONANT CIRCUITS
    • H03J5/00—Discontinuous tuning; Selecting predetermined frequencies; Selecting frequency bands with or without continuous tuning in one or more of the bands, e.g. push-button tuning, turret tuner
    • H03J5/02—Discontinuous tuning; Selecting predetermined frequencies; Selecting frequency bands with or without continuous tuning in one or more of the bands, e.g. push-button tuning, turret tuner with variable tuning element having a number of predetermined settings and adjustable to a desired one of these settings
    • H03J5/0245—Discontinuous tuning using an electrical variable impedance element, e.g. a voltage variable reactive diode, in which no corresponding analogue value either exists or is preset, i.e. the tuning information is only available in a digital form
    • H03J5/0272—Discontinuous tuning using an electrical variable impedance element, e.g. a voltage variable reactive diode, in which no corresponding analogue value either exists or is preset, i.e. the tuning information is only available in a digital form the digital values being used to preset a counter or a frequency divider in a phase locked loop, e.g. frequency synthesizer

Abstract

PURPOSE:To reduce the number of the crystal oscillators down to one by connecting the demultiplying and multiplying circuits and the multiple channel phase syncronizing circuit for communication frequency generation to one reference frequency oscillator in order to turn the output frequency from the demultiplying and multiplying circuit into the reference frequency for transmitting-receiving and to the phase syncronizing circuit.
JP51009484A 1976-01-30 1976-01-30 Frequency synthesizer for transceiver Expired JPS5855701B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP51009484A JPS5855701B2 (en) 1976-01-30 1976-01-30 Frequency synthesizer for transceiver

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP51009484A JPS5855701B2 (en) 1976-01-30 1976-01-30 Frequency synthesizer for transceiver

Publications (2)

Publication Number Publication Date
JPS5293213A true JPS5293213A (en) 1977-08-05
JPS5855701B2 JPS5855701B2 (en) 1983-12-10

Family

ID=11721505

Family Applications (1)

Application Number Title Priority Date Filing Date
JP51009484A Expired JPS5855701B2 (en) 1976-01-30 1976-01-30 Frequency synthesizer for transceiver

Country Status (1)

Country Link
JP (1) JPS5855701B2 (en)

Also Published As

Publication number Publication date
JPS5855701B2 (en) 1983-12-10

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