JPS63102371U - - Google Patents
Info
- Publication number
- JPS63102371U JPS63102371U JP19627486U JP19627486U JPS63102371U JP S63102371 U JPS63102371 U JP S63102371U JP 19627486 U JP19627486 U JP 19627486U JP 19627486 U JP19627486 U JP 19627486U JP S63102371 U JPS63102371 U JP S63102371U
- Authority
- JP
- Japan
- Prior art keywords
- frequency
- signal
- tuning
- oscillation
- local oscillation
- 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
Links
- 230000010355 oscillation Effects 0.000 claims description 8
- 238000010586 diagram Methods 0.000 description 1
Landscapes
- Television Receiver Circuits (AREA)
- Channel Selection Circuits, Automatic Tuning Circuits (AREA)
Description
第１図はこの考案の電子同調型テレビチユーナ
装置の１実施例のブロツク図である。
８…局部発振回路、１１…可変同調回路、１２
…プリスケーラ、１３…基準発振器、１４…位相
比較器、１５…ループフイルタ。
FIG. 1 is a block diagram of one embodiment of the electronically tuned television tuner device of this invention. 8... Local oscillation circuit, 11... Variable tuning circuit, 12
...Prescaler, 13... Reference oscillator, 14... Phase comparator, 15... Loop filter.
Claims (1)
に応じて可変分周するプリスケーラの分周信号と
基準周波数信号とを位相比較して同調用のチユー
ニング電圧信号を形成し、前記電圧信号によつて
前記発振回路の発振周波数を可変し、前記発振信
号をＰＬＬ制御する周波数シンセサイザ式の電子
同調型テレビチユーナ装置において、 前記局部発振回路と前記プリスケーラとの間に
、前記チユーニング電圧によつて同調周波数が前
記発振信号の周波数に可変される可変同調回路を
設けた電子同調型テレビチユーナ装置。[Claims for Utility Model Registration] A tuning voltage signal for tuning is formed by comparing the phases of a frequency-divided signal of a prescaler that variably divides the local oscillation signal of a local oscillation circuit according to the receiving channel and a reference frequency signal, In a frequency synthesizer-type electronically tuned television tuner device that varies the oscillation frequency of the oscillation circuit by the voltage signal and controls the oscillation signal in a PLL manner, the tuning voltage is connected between the local oscillation circuit and the prescaler. Therefore, an electronically tuned television tuner device is provided with a variable tuning circuit whose tuning frequency is varied to the frequency of the oscillation signal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP19627486U JPS63102371U (en) | 1986-12-20 | 1986-12-20 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP19627486U JPS63102371U (en) | 1986-12-20 | 1986-12-20 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS63102371U true JPS63102371U (en) | 1988-07-04 |
Family
ID=31154944
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP19627486U Pending JPS63102371U (en) | 1986-12-20 | 1986-12-20 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS63102371U (en) |
-
1986
- 1986-12-20 JP JP19627486U patent/JPS63102371U/ja active Pending
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