JPS58164342U - frequency synthesizer - Google Patents

frequency synthesizer

Info

Publication number
JPS58164342U
JPS58164342U JP5997982U JP5997982U JPS58164342U JP S58164342 U JPS58164342 U JP S58164342U JP 5997982 U JP5997982 U JP 5997982U JP 5997982 U JP5997982 U JP 5997982U JP S58164342 U JPS58164342 U JP S58164342U
Authority
JP
Japan
Prior art keywords
variable frequency
output
frequency divider
frequency synthesizer
voltage controlled
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
JP5997982U
Other languages
Japanese (ja)
Other versions
JPH0221815Y2 (en
Inventor
哲夫 山本
Original Assignee
古野電気株式会社
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 古野電気株式会社 filed Critical 古野電気株式会社
Priority to JP5997982U priority Critical patent/JPS58164342U/en
Publication of JPS58164342U publication Critical patent/JPS58164342U/en
Application granted granted Critical
Publication of JPH0221815Y2 publication Critical patent/JPH0221815Y2/ja
Granted legal-status Critical Current

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

Abstract

(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

【図面の簡単な説明】[Brief explanation of the drawing]

第１図は先行技術のブロック回路図、第２図は本考案の
一実施例のブロック回路図である。 ＦＶＯ，ＳＶＯ，ＴＶＯ・・・第１、第２、第３可変分
周器、ＦＰＣ，ＳＰＣ・・・第１、第２位相比較器、Ｆ
ＶＣ，ＳＶＣ・・・第１、第２電圧制御発振器、ＳＯ・
・・基準発振器、ＡＤＤ・・・付加回路。FIG. 1 is a block circuit diagram of the prior art, and FIG. 2 is a block circuit diagram of an embodiment of the present invention. FVO, SVO, TVO...first, second, third variable frequency divider, FPC, SPC...first, second phase comparator, F
VC, SVC...first and second voltage controlled oscillators, SO・
...Reference oscillator, ADD...additional circuit.

Claims (1)

【実用新案登録請求の範囲】[Scope of utility model registration request] 基準発振器の出力部に接続される第１可変分周器と、電
圧制御発振器の出力部に接続れる第２可変分周器と、第
１、第２可変分周器からの各分周出力を位相比較する位
相比較器とを有し、位相比較器からの位相比較出力に応
答して電圧制御発振器の出力周波数を制御する周波数シ
ンセサイザーにおいて、第１可変分周器の分周比を第２
可変分周器の分周比に対応して変化させる付加回路を、
第１可変分周器と基準発振器との間に設けたことを特徴
とする、周波数シンセサイザー。A first variable frequency divider connected to the output part of the reference oscillator, a second variable frequency divider connected to the output part of the voltage controlled oscillator, and each divided output from the first and second variable frequency dividers. A frequency synthesizer that has a phase comparator that performs phase comparison and controls the output frequency of the voltage controlled oscillator in response to the phase comparison output from the phase comparator,
An additional circuit that changes according to the division ratio of the variable frequency divider,
A frequency synthesizer, characterized in that it is provided between a first variable frequency divider and a reference oscillator.
JP5997982U 1982-04-23 1982-04-23 frequency synthesizer Granted JPS58164342U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP5997982U JPS58164342U (en) 1982-04-23 1982-04-23 frequency synthesizer

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP5997982U JPS58164342U (en) 1982-04-23 1982-04-23 frequency synthesizer

Publications (2)

Publication Number Publication Date
JPS58164342U true JPS58164342U (en) 1983-11-01
JPH0221815Y2 JPH0221815Y2 (en) 1990-06-12

Family

ID=30070247

Family Applications (1)

Application Number Title Priority Date Filing Date
JP5997982U Granted JPS58164342U (en) 1982-04-23 1982-04-23 frequency synthesizer

Country Status (1)

Country Link
JP (1) JPS58164342U (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH02163679A (en) * 1988-12-16 1990-06-22 Iwatsu Electric Co Ltd Signal generating device

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS55663A (en) * 1978-06-19 1980-01-07 Toshiba Corp Frequency synthesizer

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS55663A (en) * 1978-06-19 1980-01-07 Toshiba Corp Frequency synthesizer

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH02163679A (en) * 1988-12-16 1990-06-22 Iwatsu Electric Co Ltd Signal generating device

Also Published As

Publication number Publication date
JPH0221815Y2 (en) 1990-06-12

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