公开(公告)号：WO99021272A1

公开(公告)日：1999-04-29

申请号：PCT/US1998/018459

申请日：1998-09-03

IPC: H03B5/08 ,  H03B1/00 ,  H03L7/089 ,  H03L7/099 ,  H03L7/00 ,  H03L7/08

CPC classification number: H03L7/099 ,  H03B2200/004 ,  H03B2200/0082 ,  H03B2201/0208 ,  H03L7/0891

Abstract: A Phase Lock Loop circuit (110) for providing a clock signal to an integrated IC chip. The PLL comprising a voltage tunable inductive-capacitive (LC) oscillator, a phase detector, a charge pump all coupled together to form a loop. A vco includes a varactor (150), inductor (130), and capacitances (160, 170, 180, 190, 185 and 195) forming the LC oscillator.

Abstract translation: 一种用于向集成IC芯片提供时钟信号的锁相环电路（110）。 PLL包括电压可​​调电感 - 电容（LC）振荡器，相位检测器，电荷泵，所有这些都耦合在一起以形成环路。 vco包括形成LC振荡器的变容二极管（150），电感器（130）和电容（160,170,180,190,185和195）。

公开(公告)号：WO99003195A1

公开(公告)日：1999-01-21

申请号：PCT/JP1998/003062

申请日：1998-07-08

IPC: H03B5/32 ,  G06G7/12 ,  G06G7/26 ,  H03B1/00 ,  H03B5/04 ,  H03B5/36 ,  H03L1/02

CPC classification number: G06G7/26 ,  H03B5/362 ,  H03B5/368 ,  H03B2201/0208 ,  H03L1/022 ,  H03L1/025 ,  H03L1/026 ,  H03L1/028

Abstract: A crystal oscillation device with a temperature compensation function comprising: a constant voltage circuit (12) for outputting a predetermined voltage that does not depend on the ambient temperature; a temperature sensor circuit (13) for outputting a voltage proportional to the ambient temperature; and a control circuit (14) for generating a control voltage (Vc) which receives a constant voltage output of the constant voltage circuit (12) and a voltage output of the temperature sensor circuit (13) proportional to temperature and which performs polygonal line approximation, by using a continuous line, of a negative cubic curve for compensating for the temperature characteristic of a crystal oscillator over the entire range of the ambient temperature. The crystal oscillation device further includes a VCXO (15) whose oscillation frequency is controlled to a predetermined value by the control voltage (Vc), and a ROM/RAM circuit (16) where a temperature compensation parameter for compensating for the temperature characteristic of the control voltage (Vc) which is outputted by the control circuit (14) and used to optimize the oscillation frequency outputted by the VCXO (15) is stored.

Abstract translation: 一种具有温度补偿功能的晶振装置，包括：用于输出不依赖于环境温度的预定电压的恒压电路（12）; 用于输出与环境温度成比例的电压的温度传感器电路（13）; 以及用于产生控制电压（Vc）的控制电路（14），所述控制电压（Vc）接收所述恒压电路（12）的恒定电压输出和所述温度传感器电路（13）的与温度成比例的电压输出，并执行折线近似 通过使用连续线的负三次曲线来补偿在整个环境温度范围内的晶体振荡器的温度特性。 晶体振荡装置还包括通过控制电压（Vc）将振荡频率控制在规定值的VCXO（15），以及ROM / RAM电路（16），在该ROM / RAM电路（16）中，补偿温度特性的温度补偿参数 存储由控制电路（14）输出并用于优化由VCXO（15）输出的振荡频率的控制电压（Vc）。

公开(公告)号：WO1998027651A1

公开(公告)日：1998-06-25

申请号：PCT/US1997018811

申请日：1997-10-15

Applicant: MOTOROLA INC.

Inventor： MOTOROLA INC. ,  SUTLIFF, Richard, N. ,  RAZA, Syed, S. ,  LAURICH, Matthias, F. ,  TELEMAQUE, Vladimir

IPC: H03L01/02

CPC classification number: H03B5/368 ,  H03B5/362 ,  H03B2200/0034 ,  H03B2201/0208 ,  H03J7/12 ,  H03L1/025 ,  H03L1/028 ,  H04B1/40

Abstract: A temperature compensation circuit (10) for a crystal oscillator module (12) used in a communication device (200). An existing microcontroller (210) of the communication device (200) 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 5ppm to about 2ppm.

Abstract translation: 一种在通信设备（200）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（200）的现有微控制器（210）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）包括一个板载电压调节器（34），其向数模转换器提供表征的调节电压（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。 这将输出频率（20）的稳定性从约5ppm提高到约2ppm。

公开(公告)号：WO1995034950A1

公开(公告)日：1995-12-21

申请号：PCT/JP1995001014

申请日：1995-05-26

Applicant: IKEDA, Takeshi ,  OHE, Tadataka

IPC: H03B05/20

CPC classification number: H03B5/20 ,  H03B5/24 ,  H03B2200/004 ,  H03B2200/0078 ,  H03B2201/02 ,  H03B2201/0208

Abstract: An oscillator which is easily fabricated in an integrated circuit and stably operates and the oscillatory frequency of which can be adjusted within a wide range. The oscillator is constituted of two phase shifting circuits (10C and 30C) which perform prescribed phase shifting by combining signals of the same phase and opposite phase generated at the source and drain of a FET through capacitors or resistors, a noninverting circuit (50) which amplifies the output signal of the phase shifting circuit (30C) of the second stage without changing its phase, and a feedback resistor (70) which feeds back the signal outputted from the circuit (50) to the input of the phase shifting circuit (10) of the first stage.

Abstract translation: 一种易于在集成电路中制造并稳定工作并且其振荡频率可在宽范围内调节的振荡器。 振荡器由两个移相电路（10C和30C）组成，它们通过组合通过电容器或电阻器在FET的源极和漏极产生的相同相位和相位相位的信号来执行规定的相移;同相电路（50） 放大第二级的移相电路（30C）的输出信号而不改变其相位;以及反馈电阻（70），将从电路（50）输出的信号反馈到相移电路（10 ）的第一阶段。

公开(公告)号：WO1994020888A2

公开(公告)日：1994-09-15

申请号：PCT/US1994002456

申请日：1994-03-09

Applicant: NATIONAL SEMICONDUCTOR CORPORATION

Inventor： NATIONAL SEMICONDUCTOR CORPORATION ,  FAGUE, Daniel, E. ,  HANSEN, Jens ,  KARMEL, Clayton, R. ,  MADSEN, Benny ,  TOFTGAARD, Jens

IPC: G05B13/02

CPC classification number: H03C3/095 ,  H03B5/18 ,  H03B2201/0208 ,  H03L7/183 ,  H03L2207/06 ,  H04B1/408 ,  H04B1/56 ,  H04L5/143 ,  H04L5/1492 ,  H04L27/10 ,  H04L27/12 ,  H04L27/148 ,  H04L27/152

Abstract: A radio frequency (RF) transceiver includes a direct modulation transmitter and single down-conversion receiver for operation in a time-division-duplex (TDD) telecommunications environment. A single RF signal source, in the form of a phase-lock-loop (PLL), is used on a time-shared basis to provide both the carrier signal for the transmitter and the local oscillator (LO) signal for the receiver. In the transmitter, direct modulation is effected by modulating a voltage-controlled oscillator (VCO) in the PLL with a burst of the transmit data while opening the loop and holding the loop feedback tuning voltage constant. In the receiver, a self-adjusting comparator threshold is provided for automatically setting and adjusting a demodulated signal comparison threshold used in retrieving the data and data clock from the demodulated receive signal. The interface between the transmitter and receiver and the host controller provides the control signals needed for the time-sharing of the single RF signal source, the proper programming of the PLL for the different transmitter carrier and receiver LO frequencies, the PLL loop control for the direct modulation of the VCO, and the enablement, or powering down, of the transmitter and receiver sections to minimize transceiver power consumption.

Abstract translation: 射频（RF）收发器包括用于在时分双工（TDD）电信环境中操作的直接调制发射机和单个下变频接收机。 在时间共享的基础上使用单相RF锁相环（PLL）形式的RF信号源，为接收机提供发射机的载波信号和本地振荡器（LO）信号。 在发射机中，通过在打开环路并保持环路反馈调谐电压恒定的情况下，通过发射数据的突发调制PLL中的压控振荡器（VCO）来实现直接调制。 在接收机中，提供自调整比较器阈值，用于自动设置和调整用于从解调的接收信号中检索数据和数据时钟的解调信号比较阈值。 发射机和接收机与主机控制器之间的接口提供单个RF信号源的时间分配所需的控制信号，针对不同发射机载波和接收机LO频率的PLL的适当编程，PLL环路控制 VCO的直接调制，以及发射机和接收机部分的启用或掉电，以最小化收发器功率消耗。

公开(公告)号：WO1992011692A1

公开(公告)日：1992-07-09

申请号：PCT/US1991009043

申请日：1991-11-29

Applicant: MOTOROLA, INC.

Inventor： MOTOROLA, INC. ,  EINBINDER, Stephen, B.

IPC: H03C03/00

CPC classification number: H03C3/222 ,  H03B5/1203 ,  H03B5/1231 ,  H03B5/1243 ,  H03B2200/0008 ,  H03B2200/001 ,  H03B2200/004 ,  H03B2200/0086 ,  H03B2201/0208 ,  H03C3/00

Abstract: An improved frequency modulation apparatus (100) is provided comprising a generator (102), a biasing voltage line (116), and an interface circuit (110). The generator (102) is utilized to generate a carrier signal. A control line input (104) on the generator (102) adjusts the frequency of the carrier signal. The biasing voltage line (116) provides DC power in order to DC bias the generator (102). The interface circuit (110) couples an information signal (114) to the biasing voltage line (116) for altering the biasing of the generator (102) in response to the information signal (114). The alteration of the biasing of the generator (102) results in the carrier signal being frequency modulated by the information signal (114).

公开(公告)号：WO87007991A1

公开(公告)日：1987-12-30

申请号：PCT/JP1987000397

申请日：1987-12-30

IPC: H03B1/00 ,  H03B5/18 ,  H03D7/00 ,  H03J7/02 ,  H03J7/08 ,  H03B5/04 ,  H03L7/02

CPC classification number: H03B5/1805 ,  H03B2201/0208 ,  H03D7/00 ,  H03J7/08

Abstract: A local oscillation apparatus employing a dielectric coaxial resonator (27) which is used as a fixed local oscillation circuit for a tuner of the double super system and for a converter for CATV; wherein the center conductor of the dielectric coaxial resonator (27) is connected to an end of a variable-capacity diode (23) via a capacity (25), the other end of the diode being grounded in an AC manner, an AFC voltage being applied from an output terminal (E) of a frequency control circuit to the variable-capacity diode (23) via a resistor (35), and a first reference potential (VA) which is smaller than the power source voltage (VCC) by a predetermined potential drop being also applied thereto; wherein one end of the variable-capacity diode (23) is connected to the power source voltage (VCC) via a second resistor (22); and wherein even when the power source voltage (VCC) undergoes the change, the voltage does not change across both terminals of the variable-capacity diode (23) to prevent the oscillation frequency from changing.

Abstract translation: 一种采用电介质同轴谐振器（27）的本地振荡装置，其用作双超超级系统的调谐器和CATV的转换器的固定本地振荡电路; 其中介质同轴共振器（27）的中心导体通过容量（25）连接到可变容量二极管（23）的一端，二极管的另一端以AC方式接地，AFC电压为 通过电阻（35）从频率控制电路的输出端子（E）施加到可变容量二极管（23），并且通过电阻器（35）将小于电源电压（VCC）的第一参考电位（VA） 也施加预定的电位降; 其中所述可变容量二极管（23）的一端经由第二电阻器（22）连接到所述电源电压（VCC）。 并且其中即使当电源电压（VCC）发生变化时，电压也不会在可变容量二极管（23）的两个端子上变化，以防止振荡频率改变。

公开(公告)号：WO1987004304A1

公开(公告)日：1987-07-16

申请号：PCT/US1986002714

申请日：1986-12-11

Applicant: MOTOROLA, INC.

Inventor： MOTOROLA, INC. ,  ENDERBY, Ralph, T. ,  FERRER, Enrique ,  SHEPHERD, Wayne, P.

IPC: H03B05/08

CPC classification number: H03L7/187 ,  H03B2201/0208 ,  H03L7/099 ,  H03L2207/06

Abstract: A variable capacitance circuit includes a varactor (20) having an anode side (22) and a cathode side (21). A first variable bias voltage is applied to one of the sides (21 or 22) and one of a plurality of voltages is applied as a second bias voltage to the other side (21 or 22) for controlling the capacitance of the varactor (20). A voltage multiplier circuit connected to a voltage divider network is used for supplying the plurality of voltages. A decoder (81) is responsive to input signals for selecting and applying one of the multiple voltage outputs. The variable capacitance circuit is used in a voltage control oscillator (11) of a frequency synthesizer for providing extended frequency range.

公开(公告)号：WO2018023367A1

公开(公告)日：2018-02-08

申请号：PCT/CN2016/092838

申请日：2016-08-02

Applicant: 华为技术有限公司

Inventor： 罗讯 ,  钱慧珍

IPC: H03B5/12

CPC classification number: H03B5/1212 ,  H03B5/1215 ,  H03B5/1228 ,  H03B5/1296 ,  H03B2200/004 ,  H03B2200/005 ,  H03B2200/009 ,  H03B2201/0208 ,  H03B2201/0216

Abstract: 一种电压波形整形振荡器，包括信号源(101)和耦合变压器(102)，信号源(101)的输出端与耦合变压器(102)的输入端连接，信号源(101)的输入端与耦合变压器(102)的输出端连接；其中，信号源(101)用于通过信号源(101)的输入端接收来自耦合变压器(102)的输出端输出的类方波信号，并基于类方波信号生成原信号，并通过信号源(101)的输出端向耦合变压器(102)的输入端发送原信号，原信号是振荡信号，信号源(101)的输出端是振荡器的输出端且用于输出原信号；耦合变压器(102)用于通过耦合变压器(102)的输入端接收原信号，对原信号进行滤波处理得到类方波信号，并通过耦合变压器(102)的输出端向信号源(101)的输入端发送类方波信号。用于降低振荡器的相位噪声。

公开(公告)号：WO2014144582A3

公开(公告)日：2014-11-20

申请号：PCT/US2014029055

申请日：2014-03-14

Applicant: INNOPHASE INC

Inventor： LI XI ,  XU YANG

IPC: H03B5/12 ,  H03K3/03

CPC classification number: H03B5/1215 ,  H03B5/1228 ,  H03B5/1243 ,  H03B5/1265 ,  H03B2200/007 ,  H03B2200/0074 ,  H03B2201/0208 ,  H03B2201/0291 ,  H03D3/22

Abstract: An injection locking oscillator (ILO) comprising a tank circuit having a digitally controlled capacitor bank, a cross-coupled differential transistor pair coupled to the tank circuit, at least one signal injection node, and at least one output node configured to provide an injection locked output signal; a digitally controlled injection-ratio circuit having an injection output coupled to the at least one signal injection node, configured to accept an input signal and to generate an adjustable injection signal applied to the at least one injection node; and, an ILO controller connected to the capacitor bank and the injection-ratio circuit configured to apply a control signal to the capacitor bank to adjust a resonant frequency of the tank circuit and to apply a control signal to the injection-ratio circuit to adjust a signal injection ratio.

Abstract translation: 一种注入锁定振荡器（ILO），包括具有数字控制电容器组的储能电路，耦合到储能电路的交叉耦合差分晶体管对，至少一个信号注入节点和至少一个输出节点，所述输出节点被配置为提供注入锁定 输出信号; 数字控制的喷射比例电路，其具有耦合到所述至少一个信号喷射节点的喷射输出，被配置为接受输入信号并且产生施加到所述至少一个喷射节点的可调喷射信号; 以及连接到所述电容器组和所述注入比电路的ILO控制器，所述ILO控制器被配置为向所述电容器组施加控制信号以调节所述振荡回路的谐振频率并且将控制信号施加到所述注入比电路以调节 信号注入率。