JPS59111305U - voltage controlled oscillator - Google Patents
voltage controlled oscillatorInfo
- Publication number
- JPS59111305U JPS59111305U JP494583U JP494583U JPS59111305U JP S59111305 U JPS59111305 U JP S59111305U JP 494583 U JP494583 U JP 494583U JP 494583 U JP494583 U JP 494583U JP S59111305 U JPS59111305 U JP S59111305U
- Authority
- JP
- Japan
- Prior art keywords
- control voltage
- obtaining
- voltage
- frequency
- frequency control
- 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
Links
Landscapes
- Inductance-Capacitance Distribution Constants And Capacitance-Resistance Oscillators (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
、 第１図は従来のＶＣＯを示す回路図、第２図は：
本考案のＶＣＯを示す回路図、第３図は第２図の主
要部分の交流的等価回路図、第４図は第２図の回路を利
用したＰＬＬ回路を示すブロック図、第５図は変形例の
ハートレー発振回路を示す回路図で１ ある。
［１・・・周波数制御電圧供給端子ミ２・・・周波数切
換用容量回路、３・・・可変容量ダイオード、４・・・
電圧対周波数特性補正用容量回路、５・・・可変容量ダ
イ゛ オード、６・・・容量ライン、７・・・端子、
８・・・スイン； チ、ＶＣ・・・可変容量ダイオー
ド、ＣＡ、Ｃ８，Ｃ□。
Ｃ２・・・等価コンデンサ、Ｃ３・・・固定コンデンサ
、Ｌ・・・インダクタンス（マイクロストリップライン
）。, Figure 1 is a circuit diagram showing a conventional VCO, and Figure 2 is:
A circuit diagram showing the VCO of the present invention, Fig. 3 is an AC equivalent circuit diagram of the main part of Fig. 2, Fig. 4 is a block diagram showing a PLL circuit using the circuit of Fig. 2, and Fig. 5 is a modification. 1 is a circuit diagram showing an example Hartley oscillator circuit. [1... Frequency control voltage supply terminal Mi2... Frequency switching capacitor circuit, 3... Variable capacitance diode, 4...
Capacitance circuit for voltage versus frequency characteristic correction, 5... Variable capacitance diode, 6... Capacitance line, 7... Terminal,
8...Sin; H, VC...variable capacitance diode, CA, C8, C□. C2...Equivalent capacitor, C3...Fixed capacitor, L...Inductance (microstrip line).
Claims (1)
の変化に対応して出力周波数が変化するように構成され
た電圧制御発振器に於いて、′ 第１の周
波数制御電圧対出力周波数特性を得るときに前記可変容
量ダイオード（ＶＣ）に所定の溶量値Ｃ８を有して実質
的に並列接続され、第２の周波数制御電圧対出力周波数
特性を得るときには前記所定の容量値ＣＢよりも小さい
容量値又は実質的に零になる周波数切換用容量回路２を
設け、且つ前記可変容量ダイオード（ＶＣ）と接地ライ
ン又は共通ラインとの間に、前記第１の周波数側？ｉ４
：電圧対出力周波数特性を得るときは第１の容量値ＣＸ
□となり前記第２の周波数制御電圧対出力周波数特性を
得るときには第２の容量値ＣＸ２となる電圧対周波数特
性補正用容量回路４を設け、前記可変容量ダイオード（
ＶＣ）の接続ライン６と前記接地ライン又は共通ライン
との間の合成容量値ＣＬと前記周波数制御電圧の単位変
化分Δ■に対する前記可変容量ダイオードの容量変化分
ΔＣＡとの割合が前記第１の周波数制御電圧対出力周波
数性１ 性を得る場合と前記第２の周波数制御電圧対
出力、 周波数特性を得る場合とで同一にな之ように
前記第１の容量値Ｃｘ１と前記第２の容量値Ｃｘ２とを
設、 定したこ・とを特徴とする電圧制御発振器。In a voltage controlled oscillator configured so that the output frequency changes in response to a change in the frequency control voltage supplied to a variable capacitance diode (VC), when obtaining the first frequency control voltage vs. output frequency characteristic, The variable capacitance diode (VC) has a predetermined solubility value C8 and is substantially connected in parallel, and when obtaining the second frequency control voltage vs. output frequency characteristic, a capacitance value smaller than the predetermined capacitance value CB or A frequency switching capacitor circuit 2 whose voltage is substantially zero is provided, and between the variable capacitance diode (VC) and the ground line or common line, the first frequency side? i4
:When obtaining voltage vs. output frequency characteristics, first capacitance value CX
□, and when obtaining the second frequency control voltage vs. output frequency characteristic, a voltage vs. frequency characteristic correction capacitor circuit 4 is provided which has a second capacitance value CX2, and the variable capacitance diode (
VC) between the connection line 6 and the ground line or common line and the ratio of the capacitance change ΔCA of the variable capacitance diode to the unit change Δ■ of the frequency control voltage is the first The first capacitance value Cx1 and the second capacitance value are the same when obtaining the frequency control voltage versus output frequency characteristic and when obtaining the second frequency control voltage versus output frequency characteristic. A voltage controlled oscillator characterized by having Cx2.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP494583U JPS59111305U (en) | 1983-01-17 | 1983-01-17 | voltage controlled oscillator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP494583U JPS59111305U (en) | 1983-01-17 | 1983-01-17 | voltage controlled oscillator |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS59111305U true JPS59111305U (en) | 1984-07-27 |
| JPH0332089Y2 JPH0332089Y2 (en) | 1991-07-08 |
Family
ID=30136543
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP494583U Granted JPS59111305U (en) | 1983-01-17 | 1983-01-17 | voltage controlled oscillator |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS59111305U (en) |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS547472U (en) * | 1977-06-20 | 1979-01-18 |
-
1983
- 1983-01-17 JP JP494583U patent/JPS59111305U/en active Granted
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS547472U (en) * | 1977-06-20 | 1979-01-18 |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0332089Y2 (en) | 1991-07-08 |
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