KR960003083A - Tuner with built-in phase synchronization circuit - Google Patents

Tuner with built-in phase synchronization circuit Download PDF

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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
Application number
KR1019940012386A
Other languages
Korean (ko)
Inventor
김용호
Original Assignee
이종수
엘지전자부품 주식회사
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 이종수, 엘지전자부품 주식회사 filed Critical 이종수
Priority to KR1019940012386A priority Critical patent/KR960003083A/en
Publication of KR960003083A publication Critical patent/KR960003083A/en

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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

위상동기회로 내장형 튜너Tuner with built-in phase synchronization circuit

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)

안테나에서 유기되는 신호를 동조시키는 입력동조부와, 상기 입력동조부의 출력신호를 증폭시키는 고주파 증폭부와, 발진신호를 출력하는 발진부와, 상기 고주파 증폭부의 출력신호와 상기 발진부의 발진신호를 혼합하여 중간주파수를 출력하는 혼합부와, 상기 혼합부에서 출력되는 중간주파수를 증폭하여 출력시키는 중간주파수 증폭부와, 상기 발진부의 발진신호를 입력으로 하여 발진주파수에 따라 기준전압을 가변시켜 다이오드부를 통해 상기의 입력동조부와 혼합부 및 발진부로 전압을 인가시키는 위상동기회로부로 구성된 것을 특징으로 하는 위성동기 회로 내장형 튜너.An input tuning unit for tuning the signal emitted from the antenna, a high frequency amplifier for amplifying the output signal of the input tuning unit, an oscillation unit for outputting an oscillation signal, an output signal of the high frequency amplification unit, and an oscillation signal of the oscillation unit A mixing unit for outputting an intermediate frequency, an intermediate frequency amplifying unit for amplifying and outputting an intermediate frequency output from the mixing unit, an oscillation signal of the oscillating unit as an input, and varying a reference voltage according to an oscillation frequency to provide a A tuner with a built-in satellite synchronous circuit, characterized in that consisting of a phase synchronization circuit for applying a voltage to the input tuning unit and the mixing unit and the oscillator of the. 제1항에 있어서, 다이오드부는 상기 위상동기회로부의 출력전압을 상기 입력동조부로 인가하는 제1바렉터 다이오드와, 상기 위상동기회로부의 출력전압을 상기 혼합부로 인가하는 제2바렉터 다이오드와, 상기 위상동기회로부의 출력전압을 상기 혼합부로 인가하는 제3바렉터 다이오드로 구성된 것을 특징으로 하는 위성동기 회로 내장형 튜너.2. The diode of claim 1, wherein the diode unit comprises: a first varistor diode for applying an output voltage of the phase synchronization circuit unit to the input tuning unit; a second varistor diode for applying an output voltage of the phase synchronization circuit unit to the mixing unit; And a third varistor diode configured to apply an output voltage of the phase synchronization circuit unit to the mixing unit. ※ 참고사항: 최초출원 내용에 의하여 공개하는 것임.※ Note: The disclosure is based on the original application.
KR1019940012386A 1994-06-02 1994-06-02 Tuner with built-in phase synchronization circuit KR960003083A (en)

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)

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