KR950009052A - Frequency multiply oscillation circuit - Google Patents

Frequency multiply oscillation circuit Download PDF

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Publication number
KR950009052A
KR950009052A KR1019930019448A KR930019448A KR950009052A KR 950009052 A KR950009052 A KR 950009052A KR 1019930019448 A KR1019930019448 A KR 1019930019448A KR 930019448 A KR930019448 A KR 930019448A KR 950009052 A KR950009052 A KR 950009052A
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KR
South Korea
Prior art keywords
frequency
multiply
crystal oscillator
transistors
oscillating circuit
Prior art date
Application number
KR1019930019448A
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Korean (ko)
Inventor
곽효명
Original Assignee
배순훈
대우전자 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.)
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Publication date
Application filed by 배순훈, 대우전자 주식회사 filed Critical 배순훈
Priority to KR1019930019448A priority Critical patent/KR950009052A/en
Publication of KR950009052A publication Critical patent/KR950009052A/en

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  • Inductance-Capacitance Distribution Constants And Capacitance-Resistance Oscillators (AREA)
  • Oscillators With Electromechanical Resonators (AREA)

Abstract

본 주파수체배 발진회로는 크리스탈 발진기에서 출력되는 주파수신호를 간단한 아날로그회로를 이용하여 소정치로 체배하기 위한 것이다. 이를 위하여 본 회로는 소정 수의 저항 및 거패시터에 의해 결정되는 시정수에 의하여 2개의 준안정상태를 출력하는 비안정 멀티바이브레이터를 포함하도록 구성한다. 따라서 시스템의 가격을 다운시킬 수 있고, 회로를 간소화 할 수 있다.This frequency multiplying oscillator circuit is for multiplying the frequency signal output from the crystal oscillator to a predetermined value using a simple analog circuit. To this end, the circuit is configured to include an unstable multivibrator that outputs two metastable states by a time constant determined by a predetermined number of resistors and capacitors. Therefore, the price of the system can be reduced and the circuit can be simplified.

Description

주파수체배 발진회로Frequency multiply oscillation circuit

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

제2도는 본 발명에 따른 주파수체배 발진회로도이다.2 is a frequency multiplier oscillation circuit diagram according to the present invention.

Claims (4)

소정의 주파수를 발생하는 크리스탈발진기(X-TAL)를 구비한 영상신호 처리장치의 크리스탈발진기에서 출력되는 신호를 주파수 체배하기 위한 주파수체배 발진회로에 있어서; 소정 수의 저항 및 커패시터에 의해 결정되는 시정수에 의하여 2개의 준안정상태를 출력하여 상기 크리스탈발진기(X-TAL)에서 출력되는 신호를 소정배수만큼 체배하여 발진하기 위한 주파수체배 발진수단(21)을 포함함을 특징으로 하는 주파수체배 발진회로.A frequency multiply oscillation circuit for frequency multiplying a signal output from a crystal oscillator of an image signal processing apparatus having a crystal oscillator (X-TAL) generating a predetermined frequency; Frequency multiply oscillation means 21 for outputting two metastable states by a time constant determined by a predetermined number of resistors and capacitors to multiply and oscillate the signal output from the crystal oscillator X-TAL by a predetermined multiple Frequency multiply oscillating circuit comprising a. 제1항에 있어서, 상기 주파수체재 발진수단(21)은 비안정 멀티바이브레이터로 이루어짐을 특징으로 하는 주파수체배 발진회로.2. The frequency multiply oscillating circuit according to claim 1, wherein said frequency stay oscillating means (21) consists of an unstable multivibrator. 제2항에 있어서, 상기 비안정 멀티바이브레이터는 상기 준안정상태를 출력하기 위한 2개의 트랜지스터와, 상기 트랜지스터들의 베이스단자 사이에 직렬접속되어 상기 2개의 트랜지스터가 교번적으로 스위칭되도록 상기 트랜지스터들의 시정수를 가변적으로 제어하기 위한 가변소자를 포함함을 특징으로 하는 주파수체배 발진회로.The time constant of the transistors of claim 2, wherein the unstable multivibrator is connected in series between two transistors for outputting the metastable state and a base terminal of the transistors so that the two transistors are alternately switched. A frequency multiply oscillating circuit comprising a variable element for variably controlling a. 제3항에 있어서, 상기 가변소자는 상기 크리스탈발진기로 부터 출력되는 주파수에 따라 저항값을 가변적으로 조절하는 가변저항기로 이루어짐을 특징으로 하는 주파수체배 발진회로.4. The frequency multiply oscillating circuit according to claim 3, wherein the variable element comprises a variable resistor that variably adjusts a resistance value according to a frequency output from the crystal oscillator. ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.※ Note: The disclosure is based on the initial application.
KR1019930019448A 1993-09-23 1993-09-23 Frequency multiply oscillation circuit KR950009052A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1019930019448A KR950009052A (en) 1993-09-23 1993-09-23 Frequency multiply oscillation circuit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1019930019448A KR950009052A (en) 1993-09-23 1993-09-23 Frequency multiply oscillation circuit

Publications (1)

Publication Number Publication Date
KR950009052A true KR950009052A (en) 1995-04-21

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Family Applications (1)

Application Number Title Priority Date Filing Date
KR1019930019448A KR950009052A (en) 1993-09-23 1993-09-23 Frequency multiply oscillation circuit

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KR (1) KR950009052A (en)

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