KR970004281A - Frequency Synthesizer in Wireless Communication - Google Patents

Frequency Synthesizer in Wireless Communication Download PDF

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Publication number
KR970004281A
KR970004281A KR1019950014966A KR19950014966A KR970004281A KR 970004281 A KR970004281 A KR 970004281A KR 1019950014966 A KR1019950014966 A KR 1019950014966A KR 19950014966 A KR19950014966 A KR 19950014966A KR 970004281 A KR970004281 A KR 970004281A
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KR
South Korea
Prior art keywords
frequency
data
phase comparison
phase
digital
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Application number
KR1019950014966A
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Korean (ko)
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KR0140919B1 (en
Inventor
고원석
이규영
Original Assignee
정장호
Lg 정보통신 주식회사
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Priority to KR1019950014966A priority Critical patent/KR0140919B1/en
Publication of KR970004281A publication Critical patent/KR970004281A/en
Application granted granted Critical
Publication of KR0140919B1 publication Critical patent/KR0140919B1/en

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Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03L—AUTOMATIC CONTROL, STARTING, SYNCHRONISATION OR STABILISATION OF GENERATORS OF ELECTRONIC OSCILLATIONS OR PULSES
    • H03L7/00—Automatic control of frequency or phase; Synchronisation
    • H03L7/06—Automatic control of frequency or phase; Synchronisation using a reference signal applied to a frequency- or phase-locked loop
    • H03L7/08—Details of the phase-locked loop
    • H03L7/10—Details of the phase-locked loop for assuring initial synchronisation or for broadening the capture range
    • H03L7/101—Details of the phase-locked loop for assuring initial synchronisation or for broadening the capture range using an additional control signal to the controlled loop oscillator derived from a signal generated in the loop
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03L—AUTOMATIC CONTROL, STARTING, SYNCHRONISATION OR STABILISATION OF GENERATORS OF ELECTRONIC OSCILLATIONS OR PULSES
    • H03L7/00—Automatic control of frequency or phase; Synchronisation
    • H03L7/06—Automatic control of frequency or phase; Synchronisation using a reference signal applied to a frequency- or phase-locked loop
    • H03L7/08—Details of the phase-locked loop
    • H03L7/099—Details of the phase-locked loop concerning mainly the controlled oscillator of the loop

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  • Stabilization Of Oscillater, Synchronisation, Frequency Synthesizers (AREA)

Abstract

본 발명은 무선통신에서의 주파수 합성기에 관한 것으로서, 종래기술에서의 주파수 편차가 크고 그에 따라서 록킹(Locking) 타임이 길어지고, 록킹의 정확성이 떨어지며, 하드웨어 구현시 제작상의 곤란한 문제점을 해결하기 위해 본 발명은 원하는 주파수를 출력하기 위해 고정된 기준 주파수와 전압제어발진기 전단으로 부터 궤환된 주파수와의 위상을 비교하는 위상비교수단과, 위상비교수단을 통해 비교된 주파수의 위상차에 상응한 전압을 전압제어발진기에 출력하는 적분필터링수단돠, 적분필터링수단으로 부터 출력된 전압을 디지탈 데이타로 변환하는 A/D변환수단과, A/D 변환수단에 의해변환된 디지탈 데이타를 저장하는 저장수단과, 저장수단으로 부터 인출된 데이타를 위상비교수단에 입력하기 위한 주파수데이타로 인터페이싱하는 인터페이스부와, 인터페이스부를 통해 인터페이싱된 주파수 데이타에 상응한 주파수를 결정하여위상비교수단에 입력하는 디지탈 프로그래머블 발진수단을 구비한 것으로서, 마이크로 웨이브 PCM 무선통신장치에 적용할수가 있는 것이다.The present invention relates to a frequency synthesizer in wireless communication, which has a large frequency deviation in the prior art, and thus, a long locking time, a low locking accuracy, and a solution for manufacturing difficulties in hardware implementation. The present invention provides a voltage control means for comparing a phase between a fixed reference frequency and a frequency returned from a front end of a voltage controlled oscillator to output a desired frequency, and a voltage corresponding to a phase difference between the frequencies compared through the phase comparison means. Integral filtering means for outputting to the oscillator, A / D conversion means for converting the voltage output from the integral filtering means into digital data, storage means for storing the digital data converted by the A / D conversion means, and storage means. Interface for interfacing the extracted data from the data into frequency data for inputting into the phase comparison means As a by determining a frequency corresponding to the portion, and the frequency data interface through the interface provided with a programmable digital oscillator means for input to the phase comparison means, that will be applied to the microwave PCM radio communication apparatus.

Description

무선통신에서의 주파수 합성기Frequency Synthesizer in Wireless Communication

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

제2도는 본 발명에 따른 무선통신에서의 주파수 합성기의 블록 구성도.2 is a block diagram of a frequency synthesizer in wireless communication according to the present invention.

Claims (2)

원하는 주파수를 출력하기 위해 고정된 기준 주파수와 전압제어발진기(18)의 전단으로 부터 궤환된 주파수와의 위상을 비교하는 위상비교수단과, 상기 위상비교수단을 통해 비교된 주파수의 위상차에 상응한 전압을 상기 전압제어발진기(18)에 출력하는 적분필터링수단과, 상기 적분필터링수단으로 부터 출력된 디지탈 데이타로 변환하는 A/D변환수단과, 상기 A/D변환수단에 의해 변환된 디지탈 데이타를 저장하는 저장수단과, 상기 저장수단으로 부터 인출된 데이타를상기 위상비교수단에 입력하기 위한 주파수 데이타로 인터페이싱하는 인터페이스부(16)와, 상기 인터페이스부(16)를 통해인터페이싱된 주파수 데이타에 상응한 주파수를 결정하여 상기 위상비교수단에 입력하는 디지탈 프로그래머블 발진수단으로 구성된 것을 특징으로 하는 무선통신에서의 주파수 합성기.A phase comparison means for comparing a phase between a fixed reference frequency and a frequency returned from the front end of the voltage controlled oscillator 18 to output a desired frequency, and a voltage corresponding to the phase difference of the frequencies compared through the phase comparison means. Integral filtering means for outputting the signal to the voltage controlled oscillator 18, A / D conversion means for converting the digital data output from the integral filtering means, and digital data converted by the A / D conversion means. A storage means for interfacing the data extracted from the storage means with frequency data for inputting the phase comparison means, and a frequency corresponding to the frequency data interfaced through the interface unit 16. Wireless programmable communication device comprising a digital programmable oscillation means for determining and inputting to the phase comparison means Frequency Synthesizer standing. 제1항에 있어서, 상기 저장수단은 상기 A/D변환수단을 통해 변환된 디지탈의 주파수 데이타를 테이블화한 상태로 저장되는 것을 특징으로 하는 무선통신에서의 주파수 합성기.The frequency synthesizer according to claim 1, wherein the storage means stores the digital frequency data converted by the A / D conversion means in a table form. ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.※ Note: The disclosure is based on the initial application.
KR1019950014966A 1995-06-07 1995-06-07 Frequency synthesizer in wireless communication KR0140919B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1019950014966A KR0140919B1 (en) 1995-06-07 1995-06-07 Frequency synthesizer in wireless communication

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1019950014966A KR0140919B1 (en) 1995-06-07 1995-06-07 Frequency synthesizer in wireless communication

Publications (2)

Publication Number Publication Date
KR970004281A true KR970004281A (en) 1997-01-29
KR0140919B1 KR0140919B1 (en) 1998-07-15

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100727898B1 (en) * 2006-01-06 2007-06-14 삼성전자주식회사 Frequency synthesizing apparatus and method having injection-locked quadrature vco in rf transceiver

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100727898B1 (en) * 2006-01-06 2007-06-14 삼성전자주식회사 Frequency synthesizing apparatus and method having injection-locked quadrature vco in rf transceiver

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KR0140919B1 (en) 1998-07-15

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