JPH0748655B2 - Digitally controlled temperature compensated oscillator - Google Patents
Digitally controlled temperature compensated oscillatorInfo
- Publication number
- JPH0748655B2 JPH0748655B2 JP62248844A JP24884487A JPH0748655B2 JP H0748655 B2 JPH0748655 B2 JP H0748655B2 JP 62248844 A JP62248844 A JP 62248844A JP 24884487 A JP24884487 A JP 24884487A JP H0748655 B2 JPH0748655 B2 JP H0748655B2
- Authority
- JP
- Japan
- Prior art keywords
- unit
- frequency
- temperature
- data
- section
- 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
Links
- 230000010355 oscillation Effects 0.000 claims description 12
- 238000001514 detection method Methods 0.000 claims description 9
- 238000010586 diagram Methods 0.000 description 2
- 238000013500 data storage Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
Landscapes
- Stabilization Of Oscillater, Synchronisation, Frequency Synthesizers (AREA)
Description
【発明の詳細な説明】 〔産業上の利用分野〕 この発明はデジタル制御温度補償発振器の校正装置に関
する。詳しくは、この校正装置を備えた信号発生器及び
この校正装置を用いて、個々の振動子の補正のための校
正データの取得に関する。TECHNICAL FIELD The present invention relates to a calibration device for a digitally controlled temperature compensation oscillator. Specifically, the present invention relates to a signal generator equipped with this calibration device and acquisition of calibration data for correction of individual transducers using this calibration device.
本発明は、デジタル制御温度補償発振器において、周波
数比較部と校正入力と周波数比較部からのデータをもと
に周波数調整部を制御して発振部の周波数を校正入力と
一致させる制御手段と、一致させたときの周波数調整部
のデータと温度検出部からの温度データを記憶する記憶
部とを備えることにより各種の温度条件での校正手段を
備えるようにしたものである。According to the present invention, in a digitally controlled temperature-compensated oscillator, a frequency comparison unit, a calibration input, and a control unit that controls the frequency adjustment unit based on data from the frequency comparison unit to match the frequency of the oscillation unit with the calibration input. By providing the data of the frequency adjusting unit and the storage unit for storing the temperature data from the temperature detecting unit at the time, the calibration unit under various temperature conditions is provided.
従来は発振部の固有の温度特性をあらかじめ測定し、そ
の内容を記憶部に書き込んで校正していた。Conventionally, the temperature characteristic peculiar to the oscillating unit is measured in advance, and the content is written in the storage unit for calibration.
〔発明が解決しようとする問題点〕 しかし従来のデジタル制御温度補償発振器は発振部の固
有の温度特性は一定ではなく、１つずつ測定する必要が
あった。また温度検出部の校正誤差もそのまま残るもの
であった。[Problems to be Solved by the Invention] However, in the conventional digitally controlled temperature-compensated oscillator, the temperature characteristic peculiar to the oscillator is not constant, and it is necessary to measure one by one. In addition, the calibration error of the temperature detection part remained as it was.
そこで本発明では、従来のような欠点を解決するため発
振部と温度検出部をそれぞれ測定しなくても、さまざま
な温度で発振器全体として精度よく校正できるようにす
ることを目的としている。Therefore, in order to solve the conventional drawbacks, the present invention has an object to enable accurate calibration of the oscillator as a whole at various temperatures without measuring the oscillator and the temperature detector respectively.
上記の問題点を解決するために本発明は、発振部と校正
入力の周波数を比較する比較部を備え、比較部からのデ
ータで発振部の周波数を調整し、校正入力と一致させる
手段と、そのときの温度検出部からのデータと周波数調
整データを記憶する記憶部を備え、発振部を温度検出部
の温度特性を個別に測定することなく発振部や温度検出
部など発振器全体を精度よく校正するようにした。In order to solve the above problems, the present invention includes a comparison unit that compares the frequencies of the oscillation unit and the calibration input, the frequency of the oscillation unit is adjusted by the data from the comparison unit, and means for matching the calibration input, Equipped with a storage unit that stores the data from the temperature detection unit and the frequency adjustment data at that time, the entire oscillator including the oscillation unit and the temperature detection unit can be accurately calibrated without measuring the temperature characteristics of the temperature detection unit. I decided to do it.
上記のように構成されたデジタル制御温度補償発振器を
恒温器に入れ、校正入力端子に校正用信号を入力してや
ると、周波数比較部において発振部と校正入力の周波数
を比較し発振部の周波数を校正入力の周波数と一致する
よう調整部を制御し、その時点の制御データと温度検出
部のデータを記憶することができる。Insert the digitally-controlled temperature-compensated oscillator configured as above into the incubator and input the calibration signal to the calibration input terminal. It is possible to control the adjustment unit so as to match the input frequency, and store the control data at that time and the data of the temperature detection unit.
以下にこの発明の実施例を図面に基づいて説明する。第
１図において、周波数調整部１を介して制御部２によっ
て周波数を調整できる主発振部３の出力を、温度検出部
４の基準計数信号として計数部５に入力し計数結果を制
御部に送る。また主発振部３の出力は、さらに周波数比
較部６に入力されここで校正入力７の周波数と比較され
る。制御部２においては、校正入力７と主発振部３から
の比較結果をもとに周波数調整部を制御し、主発振部の
周波数を校正入力の周波数と一致させる手段を備えてい
る。また校正入力と主発振部の周波数が一致したとき
の、主発振部の周波数を基準にして計数された温度検出
部からのデータと周波数調整部の制御データを記憶部８
に記憶する手段を備えることによって、温度変化による
主発振部の周波数変動の校正データを記憶部に記憶する
ことができる。Embodiments of the present invention will be described below with reference to the drawings. In FIG. 1, the output of the main oscillating unit 3 whose frequency can be adjusted by the control unit 2 via the frequency adjusting unit 1 is input to the counting unit 5 as the reference counting signal of the temperature detecting unit 4 and the counting result is sent to the controlling unit. . The output of the main oscillating unit 3 is further input to the frequency comparing unit 6 where it is compared with the frequency of the calibration input 7. The control unit 2 includes means for controlling the frequency adjustment unit based on the comparison result from the calibration input 7 and the main oscillation unit 3 so that the frequency of the main oscillation unit matches the frequency of the calibration input. Further, when the calibration input and the frequency of the main oscillating unit match, the storage unit 8 stores the data from the temperature detecting unit and the control data of the frequency adjusting unit, which are counted based on the frequency of the main oscillating unit.
By providing the means for storing in the above, it is possible to store the calibration data of the frequency fluctuation of the main oscillation section due to the temperature change in the storage section.
上述の制御を実行するフローチャートを第２図に示す。
なお図中のP1〜P10はフローチャートの各ステップを示
す。本発明の制御データ記憶は校正入力があるときにの
み行われる。A flow chart for executing the above control is shown in FIG.
It should be noted that P1 to P10 in the figure indicate the steps of the flowchart. The control data storage of the present invention is performed only when there is a calibration input.
第１にP2で校正入力の有無をチェックしない場合はP9の
デジタル制御温度補償発振器として発振動作を行う。校
正信号が入力されると周波数比較部において基準となる
校正入力と主発振部の周波数を比較した結果を入力し、
P4において一致、不一致を判定する。不一致の場合はP1
0に移行し周波数調整部を制御して主発振部の周波数を
変化させ、一致するまでP3→P4→P10を繰り返す。一致
したらP5に移行し温度検出部からの温度データを計数部
を介して取り組む。計数部の基準は校正入力と一致した
主発振部の周波数である。P2→P3→P4→P5→P6で温度デ
ータの安定度をチェックし安定が確認された場合P7を実
行し温度検出部からのデータと周波数調整データを対応
させて記憶する。ここまでである温度ポイントでの校正
が終了したので、次の温度ポイントに移すため必要に応
じてステップ完了信号を出力する。これらの動作を必要
な温度範囲で繰り返すことにより外部の温度変化に対す
る校正データ（温度検出部からのデータと主発振部の周
波数調整部データ）を記憶部に自動的に作成することが
できる。First, when the presence or absence of the calibration input is not checked in P2, the oscillator operates as the digitally controlled temperature compensation oscillator in P9. When the calibration signal is input, input the result of comparing the reference calibration input and the frequency of the main oscillator in the frequency comparison unit,
In P4, match or mismatch is determined. P1 if no match
Move to 0, control the frequency adjuster to change the frequency of the main oscillator, and repeat P3 → P4 → P10 until they match. If they match, the process moves to P5, and the temperature data from the temperature detection unit is addressed via the counting unit. The reference of the counter is the frequency of the main oscillator that matches the calibration input. P2 → P3 → P4 → P5 → P6 Check the stability of the temperature data, and if the stability is confirmed, execute P7 and store the data from the temperature detector and the frequency adjustment data in association with each other. Since the calibration at the temperature point up to this point has been completed, a step completion signal is output as necessary to move to the next temperature point. By repeating these operations within a required temperature range, calibration data (data from the temperature detection unit and frequency adjustment unit data of the main oscillation unit) for external temperature changes can be automatically created in the storage unit.
以上のようにデジタル制御温度補償発振器に校正機能を
備えることにより、容易に同時に複数個の校正ができ、
かつデジタル制御温度補償発振器内の全ての変化要素を
含めた校正ができる。By providing the calibration function to the digitally controlled temperature-compensated oscillator as described above, it is possible to easily perform multiple calibrations simultaneously.
And it is possible to calibrate including all the variable elements in the digitally controlled temperature compensation oscillator.
第１図は、この発明にかかるデジタル制御温度補償発振
器のブロック図である。第２図は制御ブロック図の制御
手段を示すフローチャート図である。 １……周波数調整部 ２……制御部 ３……主発振部 ４……温度検出部 ５……計数部 ６……周波数比較部 ７……校正入力 ８……記憶部FIG. 1 is a block diagram of a digital control temperature compensation oscillator according to the present invention. FIG. 2 is a flow chart showing the control means of the control block diagram. 1 ... Frequency adjustment unit 2 ... Control unit 3 ... Main oscillation unit 4 ... Temperature detection unit 5 ... Counting unit 6 ... Frequency comparison unit 7 ... Calibration input 8 ... Storage unit
Claims (1)
整部と温度検出部と温度データを計数する計数部と前記
各部を制御する制御部および制御データを記憶する記憶
部とからなるデジタル制御温度補償発振器において前記
主発振部の周波数と校正入力の周波数とを比較する比較
部と、比較結果を用いて周波数調整部を制御して発振部
の周波数を調整し、校正入力の周波数と一致させるよう
な制御手段とを備え、一致したときの周波数調整部の制
御値と、温度検出部からのデータを発振部の出力を用い
て計数した値とを記憶する記憶部とを備えたことを特徴
とするデジタル制御温度補償発振器。1. A digital control comprising a main oscillating section, a frequency adjusting section for adjusting the frequency thereof, a temperature detecting section, a counting section for counting temperature data, a control section for controlling each section, and a storage section for storing control data. In the temperature-compensated oscillator, a comparison unit that compares the frequency of the main oscillation unit with the frequency of the calibration input, and the frequency adjustment unit is controlled by using the comparison result to adjust the frequency of the oscillation unit to match the frequency of the calibration input. And a storage unit that stores a control value of the frequency adjustment unit when they match and a value obtained by counting the data from the temperature detection unit using the output of the oscillation unit. Digitally controlled temperature compensated oscillator.
Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP62248844A JPH0748655B2 (en) | 1987-10-01 | 1987-10-01 | Digitally controlled temperature compensated oscillator |
| DE3822407A DE3822407A1 (en) | 1987-07-02 | 1988-07-01 | OSCILLATOR CIRCUIT WITH DIGITAL TEMPERATURE COMPENSATION |
| US07/214,448 US4910473A (en) | 1987-07-02 | 1988-07-01 | Digitally temperature-compensated oscillator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP62248844A JPH0748655B2 (en) | 1987-10-01 | 1987-10-01 | Digitally controlled temperature compensated oscillator |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0191529A JPH0191529A (en) | 1989-04-11 |
| JPH0748655B2 true JPH0748655B2 (en) | 1995-05-24 |
Family
ID=17184258
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP62248844A Expired - Lifetime JPH0748655B2 (en) | 1987-07-02 | 1987-10-01 | Digitally controlled temperature compensated oscillator |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0748655B2 (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH02295223A (en) * | 1989-05-09 | 1990-12-06 | Fujitsu Ltd | Automatic production method of temperature correction table for temperature compensated oscillation circuit |
| JPH0314318A (en) * | 1989-06-13 | 1991-01-23 | Japan Radio Co Ltd | Linearlizer circuit |
| JP2011198466A (en) * | 2011-06-10 | 2011-10-06 | Panasonic Corp | Semiconductor memory device |
| JP6750320B2 (en) | 2016-06-07 | 2020-09-02 | セイコーエプソン株式会社 | Temperature-compensated oscillator circuit, oscillator, electronic device, moving body, and oscillator manufacturing method |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5181543A (en) * | 1975-01-14 | 1976-07-16 | Suwa Seikosha Kk | SHUHASUJIDOONDOHOSHOSOCHI |
| JPS5299756A (en) * | 1976-02-18 | 1977-08-22 | Seiko Epson Corp | Automatic temperature compensation system of frequency |
| JPS61264918A (en) * | 1985-05-20 | 1986-11-22 | Fujitsu Ltd | Voltage controlled oscillator |
-
1987
- 1987-10-01 JP JP62248844A patent/JPH0748655B2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0191529A (en) | 1989-04-11 |
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