KR960032122A - Automatic adjustment circuit of design variable change according to chip embedded of voltage controlled oscillator and filter - Google Patents

Automatic adjustment circuit of design variable change according to chip embedded of voltage controlled oscillator and filter Download PDF

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Publication number
KR960032122A
KR960032122A KR1019950003137A KR19950003137A KR960032122A KR 960032122 A KR960032122 A KR 960032122A KR 1019950003137 A KR1019950003137 A KR 1019950003137A KR 19950003137 A KR19950003137 A KR 19950003137A KR 960032122 A KR960032122 A KR 960032122A
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South Korea
Prior art keywords
output
frequency
counter
filter
band pass
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KR1019950003137A
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Korean (ko)
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KR0185615B1 (en
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김천섭
음두찬
이흥배
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김광호
삼성전자 주식회사
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Priority to KR1019950003137A priority Critical patent/KR0185615B1/en
Publication of KR960032122A publication Critical patent/KR960032122A/en
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    • 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
    • H03L7/16—Indirect frequency synthesis, i.e. generating a desired one of a number of predetermined frequencies using a frequency- or phase-locked loop
    • H03L7/18—Indirect frequency synthesis, i.e. generating a desired one of a number of predetermined frequencies using a frequency- or phase-locked loop using a frequency divider or counter in the loop
    • H03L7/183—Indirect frequency synthesis, i.e. generating a desired one of a number of predetermined frequencies using a frequency- or phase-locked loop using a frequency divider or counter in the loop a time difference being used for locking the loop, the counter counting between fixed numbers or the frequency divider dividing by a fixed number
    • H03L7/187—Indirect frequency synthesis, i.e. generating a desired one of a number of predetermined frequencies using a frequency- or phase-locked loop using a frequency divider or counter in the loop a time difference being used for locking the loop, the counter counting between fixed numbers or the frequency divider dividing by a fixed number using means for coarse tuning the voltage controlled oscillator of 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
    • H03L7/085—Details of the phase-locked loop concerning mainly the frequency- or phase-detection arrangement including the filtering or amplification of its output signal
    • H03L7/087—Details of the phase-locked loop concerning mainly the frequency- or phase-detection arrangement including the filtering or amplification of its output signal using at least two phase detectors or a frequency and phase detector 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
    • H03L7/085—Details of the phase-locked loop concerning mainly the frequency- or phase-detection arrangement including the filtering or amplification of its output signal
    • H03L7/093—Details of the phase-locked loop concerning mainly the frequency- or phase-detection arrangement including the filtering or amplification of its output signal using special filtering or amplification characteristics in the loop

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  • Networks Using Active Elements (AREA)
  • Stabilization Of Oscillater, Synchronisation, Frequency Synthesizers (AREA)

Abstract

1. 청구범위에 기재된 발명이 속한 기술분야1. TECHNICAL FIELD OF THE INVENTION

VCO혹은 필터의 IC내장에 따른 실제변수 변화자동 조정회로에 관련된 기술이다.This technology is related to the automatic adjustment circuit of the actual variable change according to the VCO or the IC of the filter.

2. 발명이 해결하려고 하는 기술적 과제2. The technical problem to be solved by the invention

종래에는 IC내부에 VCO(혹은 필터)를 설계하고 핀(pin)을 외부로 내어, 가변 저항이나 가변 소스(source)를 이용하여 사용자가 직접 출력을 측정하면서 조정할수 있도록 구성하여Tsmsq, 기준신호를 VCO(혹은 필터)에 입력하고 출력을 측정하여 목적으로 하는 스팩에서 벗어난 만큼 외부 소오스를 조정하여 목적하는 스팩에 맞추는 과정을 반드시 거친다. 그러나 이와같은 구성 및 그에 따른 조정방법은 기준값을 입력하고 출력을 측정해서 가변 소오스를 조정하는데 걸리는 시간이 수초 이상이고, 이러한 시간은 곧 비용으로 환산될 뿐만 아니라 조정을 사람이 하므로 인건비가 들고, 조정회로를 외부에 두었을 경우의 부품비등도 감안해야 하므로 시간 및 비용이 많이 소요된다는 단점이 있다. 또한 측정 및 조정을 사람이 하기 때문에 부넝확할 우려가 많다는 문제점도 있다.Conventionally, a VCO (or filter) is designed inside the IC, and a pin is taken out to be configured so that the user can directly adjust the output by measuring the output by using a variable resistor or a variable source. The input to the VCO (or filter) and the output must be measured to adjust the external source to meet the desired specification as far as the desired specification. However, this configuration and the adjustment method accordingly require more than a few seconds to adjust the variable source by inputting the reference value and measuring the output, and this time is not only converted into a cost, but also by the human being. It is disadvantageous that it takes time and cost because the parts cost when the circuit is placed outside must be taken into consideration. In addition, there is a problem that there is a lot of risk of inaccuracy because the measurement and adjustment of the person.

3. 발명의 해결방법의 요지3. Summary of Solution to Invention

전압제어발진기 및 밴드패스필터를 칩에 내장함에 따른 실제변수 변화자동조정회로에 있어서, 소정의 기준주파수를 정형화하기 위한 슈미트트리거회로와 상기 정형화 기준 주파수를 1/N분주하기 위한 분주기와 상기 전압제어발진기의 출력주파수를 1/2N주기동안 카운트하여 소정의 기준값과 비교하기 위한 주파수비교기와 상기 주파수비교기의 출력을 카운트하기 위한 제1카운터와 상기 제1카운터에서 출력되는 디지털신호를 아날로그화하기 위한 제1디티절/아날로그변환부 밴드패스필터링신호의 피크를 검출하기 위한 제1피크검출부와 밴드패스필터링되기전의 신호를 일정정도 증폭하기 위한 증폭부와 상기 증폭된 신호의 피크를 검출하기 위한 제2피크검출부와 상기 두 피크검출부의 출력레벨을 비교하기 위한 레벨비교부와 상기 레벨비교부의 출력을 카운트하기위한 제2카운터와 상기 제2카운터에서 출력되는 디지털신호를 아날로그화하기위한 제2디지털/아날로그변환부와, 공통단자가 상기 밴드패스필터의 입력단자에 접속되고 다른 한 단자는 상기 전압제어 발진기의 출력단자에 접속되며 상기 주파수변환기의 제어를 받아 신호처리모드 혹은 조정모드로 스위칭 되고, 조정모드에서 상기 전압제어발진기의 출력을 상기 밴드패스필터로 전달하기 위한 스위치로 구성됨을 특징으로 한다.An automatic variable change automatic adjustment circuit incorporating a voltage controlled oscillator and a band pass filter in a chip, comprising: a Schmitt trigger circuit for shaping a predetermined reference frequency, a divider for dividing the shaping reference frequency by 1 / N, and the voltage A frequency comparator for counting the output frequency of the control oscillator for a period of 1 / 2N and comparing it with a predetermined reference value, and a first counter for counting the output of the frequency comparator and a digital signal output from the first counter. A first peak detector for detecting peaks of the band pass filtering signal, an amplifier for amplifying the signal before bandpass filtering, and a second for detecting peaks of the amplified signal A level comparison section and a level comparison section for comparing output levels of the peak detection section and the two peak detection sections A second counter for counting the output and a second digital / analog converter for analogizing the digital signal output from the second counter, a common terminal connected to the input terminal of the band pass filter, and the other terminal It is connected to the output terminal of the voltage controlled oscillator and is switched to the signal processing mode or the adjustment mode under the control of the frequency converter, it is characterized in that it consists of a switch for transmitting the output of the voltage controlled oscillator to the band pass filter in the adjustment mode do.

4. 발명의 중요한 용도4. Important uses of the invention

VOC혹은 필터IC에 내장하는 경우 그에 따른 설계변수의 변화를 IC내부에서 자동적으로 조정하게 하는 데 사용한다.When incorporated into a VOC or filter IC, it is used to automatically adjust the design variable change within the IC.

Description

전압제어발진기 및 필터의 칩내장에 따른 설계변수 변화 자동조정회로Automatic adjustment circuit of design variable change according to chip embedded of voltage controlled oscillator and filter

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

제2도는 본 발명에 따른 전압제어발진기 및 필터 자동조정회로의 구성도2 is a configuration diagram of a voltage controlled oscillator and filter automatic adjustment circuit according to the present invention.

내용 없음No content

Claims (3)

전압제어 발진기를 내장한 칩회로에 있어서, 전압에 의해 발진주파수가 변하는 전압제어발진기와 소정의 기준주파수를 정형화하기 위한 슈미트트리거회로와, 상기 정형화 기준 주파수를 1/N분주하기 위한 분주기와 상기 전압제어 발전기의 출력주파수를 1/2N주기동안 카운트하여 소정의 기준값과 비교하기 위한 주파수비교기와 상기 주파수비교기의 출력을 카운트하기위한 제1카운터와 상기 제1카운터에서 출력되는 디지털신호를 아날로그화 하기위한 제1디지털/아날로그변환부로 구성된을 특징으로 하는 전압제어발진기의 칩내장에 따른 설계변수 변화자동조정회로.A chip circuit having a voltage-controlled oscillator, comprising: a voltage-controlled oscillator whose oscillation frequency changes with voltage, a Schmitt trigger circuit for shaping a predetermined reference frequency, a divider for dividing the shaping reference frequency by 1 / N, and Analogizing a frequency comparator for counting the output frequency of the voltage controlled generator for 1 / 2N period and comparing it with a predetermined reference value, a first counter for counting the output of the frequency comparator, and a digital signal output from the first counter. Design variable change automatic adjustment circuit according to the built-in chip of the voltage controlled oscillator, characterized in that consisting of a first digital / analog converter for. 필터를 내장한 칩회로에 있어서, 일정 대역의 주파수만을 통과시키기위한 밴드패스필터와 밴드패스필터링신호의 피크를 검출하기 위한 제1피크검출부와 밴드패스필터링되기전의 신호를 일정정도 증폭하기 위한 증폭부와, 상기 증폭부 신호의 피크를 검출하기 위한 제2피크검출부와, 상기 두 피크 검출부의 출력레벨을 비교하기 위한 레벨비교부와 상기 레벨비교부의 출력을 카운트하기 위한 제2카운터와 상기 제2카운터에서 출력되는 디지털신호를 아날로그화 하기위한 제2디지털/아날로그변환부로 구성됨을 특징으로 하는 필터의 칩내장에 따른 설계변수 변화자동조정회로.In a chip circuit incorporating a filter, a band pass filter for passing only a frequency of a predetermined band, a first peak detector for detecting peaks of the band pass filtering signal, and an amplifier for amplifying a signal before band pass filtering to a certain degree And a second peak detector for detecting peaks of the amplifier signal, a level comparator for comparing output levels of the two peak detectors, a second counter for counting outputs of the level comparator, and the second counter. And a second digital / analog converter for analogizing the digital signal output from the filter. 전압제어발진기 및 밴드패스필터를 내장한 칩회로에 있어서, 소정의 기준주파수를 정형화하기 위한 슈미트트리거회로와 상기 정형화 기준주파수를 1/N분주하기 위한 분주기와 상기 전압제어발전기의 출력 주파수를 1/2N주기동안 카운트하여 소정의 기준값과 비교하기 위한 주파수비교기와 상기 주파수비교기의 출력을 카운트하기 위한 제1카운터와 상기 제1카운터에서 출력되는 디지털신호를 아날로그화 하기위한 제1디지털/아날로그변환부밴드패스필터링신호의 피크를 검출하기 위한 제1피크검출부와 밴드패스필터링되기 전의 신호를 일정정도 증폭하기 위한 증폭부와 상기 증폭된 신호의 피크를 검출하기 위한 제2피크검출부와 상기 두 피크검출부의 출력레벨을 비교하기 위한 레벨비교부와 상기 레벨비교부의 출력을 카운트하기위한 제2카운터와 상기제2카운터에서 출력되는 디지털신호를 아날로그화하기위한 제2디지털/아날로그변환부와, 공통단자가 상기 밴드패스필터의 입력단자에 접속되고 다른 한 단자는 상기 전압제어발진기의 출력단자에 접속되며, 상기 주파수변환가의 제어를 받아 신호처리모드 혹은 조정모드로 스위칭되고, 조정모드에서 상기전압제어발전기의 출력을 상기 밴드패스필터로 전달하기 위한 스위치로 구성됨을 특징으로 하는 전압제어발전기 및 필터의 칩내장에 따른 변화자동조정회로.A chip circuit having a voltage controlled oscillator and a band pass filter, comprising: a Schmitt trigger circuit for shaping a predetermined reference frequency, a divider for dividing the shaping reference frequency by 1 / N, and an output frequency of the voltage controlled generator; A frequency comparator for counting for 2N periods and comparing with a predetermined reference value, a first counter for counting the output of the frequency comparator, and a first digital / analog converter for analogizing the digital signal output from the first counter A first peak detector for detecting peaks of the bandpass filtering signal, an amplifier for amplifying the signal before bandpass filtering to a certain degree, a second peak detector for detecting peaks of the amplified signal, and the two peak detectors A level counter for comparing the output level and a second counter for counting the output of the level comparator; A second digital / analog converter for analogizing the digital signal output from the second counter, a common terminal is connected to an input terminal of the band pass filter, and the other terminal is connected to an output terminal of the voltage controlled oscillator; A chip of the voltage generator and the filter, the switch being switched to a signal processing mode or an adjustment mode under the control of the frequency converter, and configured to transmit an output of the voltage control generator to the band pass filter in the adjustment mode. Automatic change circuit by built-in. ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.※ Note: The disclosure is based on the initial application.
KR1019950003137A 1995-02-18 1995-02-18 Vco and design parameter variance auto tuning circuit for imbedding filter in chip KR0185615B1 (en)

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KR960032122A true KR960032122A (en) 1996-09-17
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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100691185B1 (en) * 2005-07-12 2007-03-09 삼성전기주식회사 Voltage controlled oscillator having function of auto amplitude control

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100691185B1 (en) * 2005-07-12 2007-03-09 삼성전기주식회사 Voltage controlled oscillator having function of auto amplitude control

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