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KR910013700A - Direct synchronous receiving circuit - Google Patents

Direct synchronous receiving circuit Download PDF

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Publication number
KR910013700A
KR910013700A KR1019890020089A KR890020089A KR910013700A KR 910013700 A KR910013700 A KR 910013700A KR 1019890020089 A KR1019890020089 A KR 1019890020089A KR 890020089 A KR890020089 A KR 890020089A KR 910013700 A KR910013700 A KR 910013700A
Authority
KR
South Korea
Prior art keywords
signal
circuit
tuning
output
pll
Prior art date
Application number
KR1019890020089A
Other languages
Korean (ko)
Other versions
KR920002699B1 (en
Inventor
성창열
Original Assignee
강진구
삼성전자 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 강진구, 삼성전자 주식회사 filed Critical 강진구
Priority to KR1019890020089A priority Critical patent/KR920002699B1/en
Publication of KR910013700A publication Critical patent/KR910013700A/en
Application granted granted Critical
Publication of KR920002699B1 publication Critical patent/KR920002699B1/en

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Classifications

    • HELECTRICITY
    • H03ELECTRONIC CIRCUITRY
    • H03JTUNING RESONANT CIRCUITS; SELECTING RESONANT CIRCUITS
    • H03J3/00Continuous tuning
    • H03J3/20Continuous tuning of single resonant circuit by varying inductance only or capacitance only

Landscapes

  • Superheterodyne Receivers (AREA)
  • Circuits Of Receivers In General (AREA)

Abstract

내용 없음.No content.

Description

직접 동기 수신회로Direct synchronous receiving circuit

본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음As this is a public information case, the full text was not included.

제2도는 본 발명에 따른 회로도.2 is a circuit diagram according to the present invention.

Claims (3)

고주파수신호를 수신하는 수신장치의 직접 동기 수신회로에 있어서, PLL 신호를 발생하는 PLL회로(A)와; 안테나(ANT1)로부터 고주파신호를 입력하여 원하는 대역의 신호를 상기 PLL회로(B)의 출력신호에 의해 트랙킹하여 동조하는 동조회로(B)와 상기 PLL회로(A)의 출력신호에 의해 소정 대역의 채널신호로 동조된 신호를 입력하여 동기를 검출하여 베이스 밴드신호를 출력하는 호모다인 방식의 베이스 벤드 신호 출력부(C)와 동기를 검출하기 위하여 상기 베이스밴드 신호출력부(C)의 전압제어발진기(70)를 제어하여 정확한 록킹을 하기 위한 록킹회로(D)로 구성됨을 특징으로 하는 회로.A direct synchronous reception circuit of a receiving device for receiving a high frequency signal, comprising: a PLL circuit A for generating a PLL signal; a high frequency signal is inputted from an antenna ANT1 to output a signal of a desired band to the PLL circuit B; A homodyne system that detects synchronization by inputting a signal tuned to a channel signal of a predetermined band by the output signal of the tuning circuit B and the PLL circuit A, which are tracked and tuned by a signal, and output a baseband signal. And a locking circuit (D) for precise locking by controlling the voltage controlled oscillator 70 of the baseband signal output unit C to detect synchronization with the base bend signal output unit C. Circuit. 제1항에 있어서, 상기 동조회로(B)가 안테나(ANT2)로부터 고주파신호를 입력하여 공진값에 따라 VHF대역과 UHF대역을 분리시키는 공진부(B1)와, 상기 공진부(10)의 공진값에 따라 대역이 선택되어 출력된 고주파신호를 PLL신호에 의해 동조시키는 입력동조부(B2)와, 상기 입력동조부(B2)에서 동조된 신호를 입력하여 이득을 조절하여 증폭출력하는 증폭부(B3)와, 상기 증폭부(B3)의 증폭출력된 신호를 PLL신호에 의해 동조되어 출력하는 단간동조부(B4)로 구성됨을 특징으로 하는 회로.The resonator B1 of claim 1, wherein the tuning circuit B inputs a high frequency signal from the antenna ANT2 to separate the VHF band and the UHF band according to the resonance value. An input tuning unit B2 for tuning a high frequency signal outputted by selecting a band according to the resonance value by a PLL signal, and an amplifying unit for amplifying and outputting a gain by inputting a signal tuned by the input tuning unit B2 (B3) and a short inter-tuning section (B4) for tuning and outputting the amplified output signal of the amplifying section (B3) by a PLL signal. 제1항에 있어서, 록킹회로(D)는 상기 제1밴드패스증폭기(140)에서 증폭된 신호와, 상기 제2밴드패스증폭기(100)의 출력신호를 믹싱되어 출력하는 제3믹서(150)와, 상기 제3믹서(150)의 믹싱된 신호를 필터링 출력하는 제3로우패스필터(160)로 구성됨을 특징으로 하는 회로.The third mixer (150) of claim 1, wherein the locking circuit (D) mixes and outputs the signal amplified by the first band pass amplifier 140 and the output signal of the second band pass amplifier 100. And a third low pass filter (160) for filtering and outputting the mixed signal of the third mixer (150). ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.※ Note: The disclosure is based on the initial application.
KR1019890020089A 1989-12-29 1989-12-29 Direct tunning receiver circuit KR920002699B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1019890020089A KR920002699B1 (en) 1989-12-29 1989-12-29 Direct tunning receiver circuit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1019890020089A KR920002699B1 (en) 1989-12-29 1989-12-29 Direct tunning receiver circuit

Publications (2)

Publication Number Publication Date
KR910013700A true KR910013700A (en) 1991-08-08
KR920002699B1 KR920002699B1 (en) 1992-03-31

Family

ID=19294126

Family Applications (1)

Application Number Title Priority Date Filing Date
KR1019890020089A KR920002699B1 (en) 1989-12-29 1989-12-29 Direct tunning receiver circuit

Country Status (1)

Country Link
KR (1) KR920002699B1 (en)

Also Published As

Publication number Publication date
KR920002699B1 (en) 1992-03-31

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