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    • 2. 发明公开
    • 수정 발진기용 온도 보상 회로
    • 晶体振荡器温度补偿电路
    • KR1020000057646A
    • 2000-09-25
    • KR1019997005451
    • 1997-10-15
    • 씨티에스 코포레이션
    • 슈틀리프,리차드,엔.라자,시에드,에스.로리치,머다이어스,에프.텔레마퀴,블라디미어
    • H03L1/02
    • H03B5/368H03B5/362H03B2200/0034H03B2201/0208H03J7/12H03L1/025H03L1/028H04B1/40
    • PURPOSE: A temperature compensation circuit for a crystal oscillator module used in a communication device is provided to obtain improved temperature compensated output frequency without an on-board ASIC(application specific intrefrated circuit). CONSTITUTION: A temperature compensation circuit(10) for a crystal oscillator module(12) used in a communication device. An existing microcontroller of the communication device is used to provide temperature compensating digital data(30) for a crystal oscillator(18). In this way, the crystal oscillator module(12) does not require an on-board memory which substantially cuts costs. The temperature compensation digital data(30) is converted to a temperature compensation signal(22) in a digital-to-analog converter which controls the crystal oscillator frequency. However, typical digital-to-analog converters are driven by voltage regulators which vary over temperature. To solve this problem, the crystal oscillator module(12) includes an on-board voltage regulator(34) which supplies a characterized regulated voltage(36) to the digital-to-analog converter such that the temperature compensation signal(22) from the digital-to-analog converter is inherently corrected for voltage variations in the voltage regulator(34). This improves stability of the output frequency(20) from about 5 ppm to about 2 ppm.
    • 目的:提供在通信设备中使用的晶体振荡器模块的温度补偿电路,以获得改进的温度补偿输出频率,而无需板载ASIC(专用自适应专用电路)。 构成:在通信装置中使用的用于晶体振荡器模块(12)的温度补偿电路(10)。 通信设备的现有微控制器用于为晶体振荡器(18)提供温度补偿数字数据(30)。 以这种方式,晶体振荡器模块(12)不需要基本上降低成本的板上存储器。 温度补偿数字数据(30)被转换成控制晶体振荡器频率的数 - 模转换器中的温度补偿信号(22)。 然而,典型的数模转换器由温度变化的电压调节器驱动。 为了解决这个问题,晶体振荡器模块(12)包括一个板上电压调节器(34),其向数模转换器提供一个表征的调节电压(36),使得温度补偿信号(22)从 数字到模拟转换器固有地校正了电压调节器(34)中的电压变化。 这提高了输出频率(20)从约5ppm到约2ppm的稳定性。
    • 4. 发明公开
    • 온도 보상형 발진기, 온도 보상형 발진기의 제어방법 및무선 통신 장치
    • 温度补偿振荡器,其控制方法和无线电通信设备
    • KR1020010062129A
    • 2001-07-07
    • KR1020000073279
    • 2000-12-05
    • 세이코 엡슨 가부시키가이샤
    • 오카마나부
    • H03L1/02
    • H03L1/023H03L1/025
    • PURPOSE: A temperature-compensated oscillator is provided to reduce phase noise of an output signal, to stabilize frequency of the output signal in a short time and not to become poor in responsivity of control. CONSTITUTION: The temperature-compensated oscillator(15) is equipped with a filter circuit(23) for removing noise included to temperature-compensated voltage(Vc1), a switch(SW1) connected to the filter circuit(23) in parallel, and a power control circuit(26) for controlling power supply to the voltage-controlled oscillator circuit(28) in which the power control circuit(26) makes the switch(SW1) on during the prescribed time when starting power supply to the voltage-controlled oscillator circuit(28).
    • 目的:提供温度补偿振荡器,以减少输出信号的相位噪声,在短时间内稳定输出信号的频率,而不会降低控制响应。 构成:温度补偿振荡器(15)配备有用于去除包括在温度补偿电压(Vc1)中的噪声的滤波电路(23),并联连接到滤波器电路(23)的开关(SW1),以及 功率控制电路(26),用于控制电压控制振荡电路(28)的供电,其中功率控制电路(26)在开始向压控振荡器供电时的规定时间内使开关(SW1)导通 电路(28)。
    • 6. 发明授权
    • 온도 보상형 발진기, 온도 보상형 발진기의 제어방법 및무선 통신 장치
    • 온도보상형발진기,온도보상형발진기의제어방법및무선통신장치
    • KR100416456B1
    • 2004-01-31
    • KR1020000073279
    • 2000-12-05
    • 세이코 엡슨 가부시키가이샤
    • 오카마나부
    • H03L1/02
    • H03L1/023H03L1/025
    • 출력 신호의 위상 잡음을 저감할 수 있으며, 또한, 출력 신호의 주파수가 단시간에 안정하여, 제어의 응답성도 나빠지지 않는 온도 보상형 발진기, 온도 보상형 발진기의 제어방법 및 무선 통신 장치를 제공한다.
      온도 보상 전압(Vc1)에 포함되는 노이즈를 제거하는 필터 수단(23)과, 상기 필터 수단(23)에 병렬 접속된 스위치 수단(SW1)과, 전압 제어형 발진 회로(28) 등에의 전력의 공급을 제어하는 전력 제어 수단(26)을 구비하고, 전력 제어 수단(26)은 전압 제어형 발진 회로(28)에의 전력의 공급 개시시는 스위치 수단(SW1)을 소정 기간 온으로 한다.
    • 温度补偿振荡器包括一个压控振荡电路(28),用于产生一个振荡输出信号,该振荡输出信号的频率根据施加的控制电压(Vc1,Vc2)而变化; 温度补偿电路(21),用于输出温度补偿电压(Vc1),以保持所述频率恒定而与温度变化无关; 和用于去除温度补偿电压(Vc1)中包含的噪声的滤波器装置(23)。 提供功率控制装置(26),用于控制对所述压控振荡电路(28)和所述温度补偿电路(21)的供电。 切换装置响应于功率控制装置(26)开始向所述压控振荡电路(28)供电,用于在指定时段内从第一状态暂时切换到第二状态,所述切换装置(SW1), 在所述第二状态下,改变所述滤波器装置(23)的特性,使得由所述滤波器装置引起的信号延迟明显小于其在所述开关装置的第一状态下的延迟。 这样,振荡器输出信号的相位噪声可以降低,并且输出信号的频率在短时间内稳定,而频率控制的响应不会受到影响。 <图像>
    • 7. 发明授权
    • 디지털온도보상발진기및그제어방법
    • KR100379848B1
    • 2003-06-09
    • KR1019970065479
    • 1997-11-28
    • 닛본 덴끼 가부시끼가이샤
    • 츠므라소이치
    • H03B5/04H03L7/00
    • H03J7/08H03B5/368H03L1/025
    • A digital temperature compensation oscillator by which its AFC operation to a receive signal cannot be disturbed by temperature compensation operation. A digital temperature compensation oscillator comprises a temperature sensor, an address creating section, a ROM, latching means, and a voltage-controlled crystal oscillator. The temperature sensor produces an output signal varied according to ambient temperatures. The address creating section converts an output from the temperature sensor into a signal and then creating it as a ROM (read-only memory) address. The ROM stores a control voltage to compensate a frequency variation due to ambient temperatures of a voltage-controlled crystal oscillator. The latching means holds or passes data output from the ROM according to an external control signal. The D/A converter produces a control voltage for the voltage-controlled crystal oscillator according to the latching means. The voltage controlled crystal oscillator is fine adjusted based on two control voltages including the output signal from the D/A converter and an external analog AFC signal.
    • 一种数字温度补偿振荡器,通过它温度补偿操作不会影响其对接收信号的AFC操作。 数字温度补偿振荡器包括温度传感器,地址创建部分,ROM,锁存装置和压控晶体振荡器。 温度传感器产生一个根据环境温度而变化的输出信号。 地址创建部分将来自温度传感器的输出转换成信号,然后将其创建为ROM(只读存储器)地址。 ROM存储控制电压以补偿由压控晶体振荡器的环境温度引起的频率变化。 锁存装置根据外部控制信号保持或传递从ROM输出的数据。 D / A转换器根据锁存装置为压控晶体振荡器产生控制电压。 压控晶体振荡器基于包括来自D / A转换器的输出信号和外部模拟AFC信号的两个控制电压进行微调。
    • 10. 发明公开
    • 발진회로
    • 振荡电路
    • KR1020090099466A
    • 2009-09-22
    • KR1020090020187
    • 2009-03-10
    • 세이코 엔피시 가부시키가이샤
    • 기쿠치준마츠모토도루가네하치가오루
    • H03B5/04H03B5/24
    • H03B5/04H03B5/368H03L1/025H03L3/00
    • An oscillation circuit is provided to prevent output of an oscillator from being inputted to a temperature compensation circuit as noise. An oscillator(1) controls an output frequency by a control signal according to surrounding temperature. A temperature compensation circuit(2) supplies a control signal to the oscillator. A temperature sensor output switch(3) is on-off controlled to select oscillation output of the oscillator and temperature sensor output of the temperature compensation circuit. The temperature sensor output switch two-step-serially connects a transfer gate switch. The third switch connects to a contact point by a fixed electric potential. When an oscillation output switch is on, each transfer gate switch of the temperature sensor output switch is off and the third switch is on. When the oscillation output switch is off, each transfer gate switch of the temperature sensor output switch is on and the third switch is off.
    • 提供振荡电路以防止振荡器的输出作为噪声输入到温度补偿电路。 振荡器(1)根据周围温度通过控制信号控制输出频率。 温度补偿电路(2)向振荡器提供控制信号。 温度传感器输出开关(3)被开关控制,以选择振荡器的振荡输出和温度补偿电路的温度传感器输出。 温度传感器输出开关两步串联连接传输门开关。 第三开关通过固定电位连接到接触点。 当振荡输出开关打开时,温度传感器输出开关的每个传输门开关都关闭,第三个开关打开。 当振荡输出开关关闭时,温度传感器输出开关的每个传输门开关都打开,第三个开关关闭。