KR960003083A - Tuner with built-in phase synchronization circuit - Google Patents
Tuner with built-in phase synchronization circuit Download PDFInfo
- Publication number
- KR960003083A KR960003083A KR1019940012386A KR19940012386A KR960003083A KR 960003083 A KR960003083 A KR 960003083A KR 1019940012386 A KR1019940012386 A KR 1019940012386A KR 19940012386 A KR19940012386 A KR 19940012386A KR 960003083 A KR960003083 A KR 960003083A
- Authority
- KR
- South Korea
- Prior art keywords
- unit
- oscillation
- signal
- phase synchronization
- synchronization circuit
- Prior art date
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- Superheterodyne Receivers (AREA)
Abstract
본원 발명은 위상동기회로를 튜너내부에 내장한 위상동기회로 내장형 튜너에 관한 것으로서, 안테나에서 유기되는 신호를 동조시키는 입력동조부와, 상기 입력동조부의 출력신호를 증폭시키는 고주파 증폭부와 발진신호를 출력하는 발진부와, 상기 고주파 증폭부의 출력신호와 상기 발진부의 발진신호를 혼합하여 중간주파수를출력하는 혼합부와, 상기 혼합부에서 출력되는 중간주파수를 증폭하여 출력시키는 중간주파수 증폭부와, 상기 발진부의 발진신호를 입력으로 하여 발진주파수에 따라 동조전압을 가변시키는 위상동기회로부와,상기 위상 동기회로부의 출력전압을 상기의 입력동조부와 혼합부 및 발진부로 인가시키는 다이오드부로 구성되어, 위상동기회로부에서 발진부의 발진주파수를 변화시킴으로서, 선로잡음을 줄일 수 있는 동시에 이득을 높이는 잇점이 있는 것을 특징으로 한다.The present invention relates to a tuner incorporating a phase synchronizing circuit incorporating a phase synchronizing circuit, and comprising: an input tuning unit for synchronizing a signal induced by an antenna; a high frequency amplifier and an oscillation signal for amplifying an output signal of the input synchronizing unit; An oscillator for outputting, a mixer for mixing an output signal of the high frequency amplifier and an oscillation signal of the oscillator for outputting an intermediate frequency, an intermediate frequency amplifier for amplifying and outputting an intermediate frequency output from the mixer, and the oscillator And a phase synchronization circuit section for varying the tuning voltage according to the oscillation frequency by inputting the oscillation signal of the input signal, and a diode section for applying the output voltage of the phase synchronization circuit section to the input tuning section, the mixing section, and the oscillation section. By changing the oscillation frequency at the oscillation part, the line noise can be reduced It characterized in that the advantage of enhancing the benefit.
Description
본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음As this is a public information case, the full text was not included.
제2도는 본원 발명에 의한 블럭도.2 is a block diagram according to the present invention.
Claims (2)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1019940012386A KR960003083A (en) | 1994-06-02 | 1994-06-02 | Tuner with built-in phase synchronization circuit |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1019940012386A KR960003083A (en) | 1994-06-02 | 1994-06-02 | Tuner with built-in phase synchronization circuit |
Publications (1)
Publication Number | Publication Date |
---|---|
KR960003083A true KR960003083A (en) | 1996-01-26 |
Family
ID=66685700
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
KR1019940012386A KR960003083A (en) | 1994-06-02 | 1994-06-02 | Tuner with built-in phase synchronization circuit |
Country Status (1)
Country | Link |
---|---|
KR (1) | KR960003083A (en) |
-
1994
- 1994-06-02 KR KR1019940012386A patent/KR960003083A/en not_active Application Discontinuation
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
A201 | Request for examination | ||
E902 | Notification of reason for refusal | ||
E902 | Notification of reason for refusal | ||
E601 | Decision to refuse application |