KR970031275A - Low Noise Amplifier Tuner - Google Patents

Low Noise Amplifier Tuner Download PDF

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Publication number
KR970031275A
KR970031275A KR1019950044672A KR19950044672A KR970031275A KR 970031275 A KR970031275 A KR 970031275A KR 1019950044672 A KR1019950044672 A KR 1019950044672A KR 19950044672 A KR19950044672 A KR 19950044672A KR 970031275 A KR970031275 A KR 970031275A
Authority
KR
South Korea
Prior art keywords
tuner
noise amplifier
low noise
amplifier
low
Prior art date
Application number
KR1019950044672A
Other languages
Korean (ko)
Other versions
KR0158597B1 (en
Inventor
권시영
Original Assignee
이형도
삼성전기 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 이형도, 삼성전기 주식회사 filed Critical 이형도
Priority to KR1019950044672A priority Critical patent/KR0158597B1/en
Publication of KR970031275A publication Critical patent/KR970031275A/en
Application granted granted Critical
Publication of KR0158597B1 publication Critical patent/KR0158597B1/en

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Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03J—TUNING RESONANT CIRCUITS; SELECTING RESONANT CIRCUITS
    • H03J3/00—Continuous tuning
    • H03J3/02—Details
    • H03J3/06—Arrangements for obtaining constant bandwidth or gain throughout tuning range or ranges
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N5/00—Details of television systems
    • H04N5/44—Receiver circuitry for the reception of television signals according to analogue transmission standards
    • H04N5/50—Tuning indicators; Automatic tuning control

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Superheterodyne Receivers (AREA)
  • Input Circuits Of Receivers And Coupling Of Receivers And Audio Equipment (AREA)
  • Noise Elimination (AREA)
  • Amplifiers (AREA)

Abstract

본 발명은 튜너내부 앞단에 저잡음증폭기(LOW NOISE AMPLIFIER)를 내장시킨 저잡음증폭기 내장형 튜너(TUNER)에 관한 것이다.The present invention relates to a low noise amplifier built-in tuner (TUNER) having a low noise amplifier built in the front end of the tuner.

본 발명은 튜너내부 앞단에 저잡음증폭기(LOW NOISE AMPLIFIER)를 내장시킴으로써, S/N비를 개선하여 수신감도가 개선되어 약전계에서도 양호한 수신화면을 시청할 수 있는 특별한 효과가 있는 것이다.According to the present invention, the low noise amplifier (LOW NOISE AMPLIFIER) is built in the front end of the tuner, so that the S / N ratio is improved and the reception sensitivity is improved so that a good reception screen can be viewed even in a weak electric field.

Description

저잡음 증폭기 내장형 튜너Low Noise Amplifier Tuner

본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음Since this is an open matter, no full text was included.

제2도는 본 발명에 따른 튜너의 내부블록도.2 is an internal block diagram of a tuner according to the present invention.

Claims (3)

안테나(ANT)를 통해 유입되는 고주파신호를 소정레벨로 고주파증폭하는 RF증폭부(10)와, 상기 고주파증폭부(10)를 통해 출력되는 신호와 발진부(24)에서 출력되는 발진신호를 믹서(22)에서 혼합하여 소정의 중간주파신호를 츨력하는 주파수변환부(20)와, 상기 주파수변환부(20)에서 출력되는 미약한 중간주파신호를 증폭하여주는 IF증폭부(30)와, 상기 IF증폭부(30)에서 출력되는 중간주파신호를 대역통과시키는 대역통과필터(40)를 포함하는 튜너에 있어서, 상기 튜너내부, RF증폭부(10)의 전단에 안테나(ANT)로부터의 RF신호를 저잡음으로 증폭하는 저잡음증폭부(5)를 접속하여, 상기 저잡음증폭부(5)와 튜너를 일체화로 구성함을 특징으로하는 저잡음증폭기 내장형 튜너(TUNER).RF mixer 10 for amplifying the high frequency signal flowing through the antenna ANT to a predetermined level, the signal output through the high frequency amplifier 10 and the oscillation signal output from the oscillator 24 mixer ( 22) a frequency converter 20 for mixing a predetermined intermediate frequency signal, amplifying a weak intermediate frequency signal output from the frequency converter 20, and an IF amplifier 30 for amplifying the IF signal. In the tuner including a band pass filter 40 for band-passing the intermediate frequency signal output from the amplifier 30, the RF signal from the antenna (ANT) in the tuner, the front end of the RF amplifier 10 A low-noise amplifier built-in tuner (TUNER) comprising a low-noise amplifier (5) for amplifying low noise and connecting the low-noise amplifier (5) and the tuner integrally. 제1항에 있어서, 상기 저잡음증폭부(5)는 저잡음증폭기가 다단으로 구성함을 특징으로하는 저잡음 증폭기 내장형 튜너(TUNER).The low noise amplifier built-in tuner (TUNER) according to claim 1, wherein the low noise amplifier (5) has a low noise amplifier composed of multiple stages. 제1항에 있어서, 상기 저잡음증폭부는 집적화된 회로로 구성함을 특징으로하는 저잡음증폭기 내장형 튜너(TUNER).The low noise amplifier built-in tuner of claim 1, wherein the low noise amplifier comprises an integrated circuit. ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.※ Note: The disclosure is based on the initial application.
KR1019950044672A 1995-11-29 1995-11-29 Low noise amplifier with inside type tunner KR0158597B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1019950044672A KR0158597B1 (en) 1995-11-29 1995-11-29 Low noise amplifier with inside type tunner

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1019950044672A KR0158597B1 (en) 1995-11-29 1995-11-29 Low noise amplifier with inside type tunner

Publications (2)

Publication Number Publication Date
KR970031275A true KR970031275A (en) 1997-06-26
KR0158597B1 KR0158597B1 (en) 1999-03-20

Family

ID=19436380

Family Applications (1)

Application Number Title Priority Date Filing Date
KR1019950044672A KR0158597B1 (en) 1995-11-29 1995-11-29 Low noise amplifier with inside type tunner

Country Status (1)

Country Link
KR (1) KR0158597B1 (en)

Also Published As

Publication number Publication date
KR0158597B1 (en) 1999-03-20

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