公开(公告)号：US20070001775A1

公开(公告)日：2007-01-04

申请号：US11171860

申请日：2005-06-30

Applicant: Hongjiang Song

Inventor： Hongjiang Song

IPC: H03B5/08

CPC classification number: H03B5/1228 ,  H03B5/1215 ,  H03B5/1243 ,  H03B5/1265 ,  H03B2200/0048 ,  H03B2200/005 ,  H03B2201/0208 ,  H03B2201/0266

Abstract: In accordance with certain described implementations, a voltage controlled oscillator (VCO) includes a VCO coarse tuning bank having multiple coarse tuning bank bits. Each coarse tuning bank bit has an associated bit capacitance. The bit capacitances of the coarse tuning bank bits may be selectively engaged using, for example, a single switching transistor for each coarse tuning bank bit.

公开(公告)号：US20060028283A1

公开(公告)日：2006-02-09

申请号：US11048456

申请日：2005-01-31

Applicant: Bour-Yi Sze ,  Chih-Long Ho ,  Ming-Chieh Huang

Inventor： Bour-Yi Sze ,  Chih-Long Ho ,  Ming-Chieh Huang

IPC: H03L7/00

CPC classification number: H03L7/10 ,  H03B5/1212 ,  H03B5/1215 ,  H03B5/1228 ,  H03B5/1243 ,  H03B5/1265 ,  H03B2201/0266 ,  H03C3/0958 ,  H03J5/244 ,  H03L7/099 ,  H03L2207/06

Abstract: A system is provided to improve frequency stability and system linearity in voltage controlled oscillators. A symmetrical voltage controlled oscillator system embodying the present invention comprises a frequency tuning circuit for receiving a frequency tuning signal, a band tuning circuit coupled with the frequency tuning circuit in a parallel fashion having at least one switching circuit for receiving at least one band tuning signal and at least one switching signal, a core circuit coupled with the frequency tuning circuit and the band tuning circuit for providing a first output and a second output that are complementary to each other, wherein upon asserting the switching signal, and upon adjusting the frequency tuning signal and the band tuning signal, the switching circuit is enabled for configuring the band tuning circuit to join the frequency tuning circuit for determining a predetermined output frequency based on a total inductance and total capacitance provided by the core circuit, the frequency tuning circuit and the band tuning circuit.

Abstract translation: 提供一种提高压控振荡器的频率稳定性和系统线性度的系统。 体现本发明的对称压控振荡器系统包括用于接收频率调谐信号的频率调谐电路，与频率调谐电路耦合的频带调谐电路，其具有至少一个开关电路，用于接收至少一个频带调谐信号 以及至少一个开关信号，与频率调谐电路耦合的核心电路和用于提供彼此互补的第一输出和第二输出的频带调谐电路，其中在断言切换信号时，并且在调整频率调谐 信号和频带调谐信号，使开关电路能够配置频带调谐电路，以连接频率调谐电路，用于基于由核心电路，频率调谐电路和频率调谐电路提供的总电感和总电容来确定预定的输出频率 带调谐电路。

公开(公告)号：US20050261797A1

公开(公告)日：2005-11-24

申请号：US11055556

申请日：2005-02-10

Applicant: Russell Cyr ,  Geoffrey Dawe

Inventor： Russell Cyr ,  Geoffrey Dawe

IPC: H02M3/24 ,  H03B1/00 ,  H03B5/12 ,  H03C3/22 ,  H03D3/00 ,  H03F1/06 ,  H03F1/08 ,  H03F1/22 ,  H03F1/26 ,  H03F1/32 ,  H03F3/19 ,  H03F3/191 ,  H03F3/195 ,  H03F3/45 ,  H03F3/60 ,  H03G1/00 ,  H03G3/30 ,  H03L7/00 ,  H03L7/099 ,  H03L7/10 ,  H03L7/185 ,  H04B1/00 ,  H04B1/40 ,  H04L12/28 ,  H04L12/56

CPC classification number: H03F1/26 ,  H01L23/66 ,  H01L24/48 ,  H01L24/49 ,  H01L2223/6611 ,  H01L2224/05554 ,  H01L2224/05599 ,  H01L2224/48091 ,  H01L2224/48227 ,  H01L2224/484 ,  H01L2224/49171 ,  H01L2224/49175 ,  H01L2224/85399 ,  H01L2924/00014 ,  H01L2924/01005 ,  H01L2924/01006 ,  H01L2924/01013 ,  H01L2924/01014 ,  H01L2924/01015 ,  H01L2924/01019 ,  H01L2924/01023 ,  H01L2924/01027 ,  H01L2924/01032 ,  H01L2924/01033 ,  H01L2924/01074 ,  H01L2924/01075 ,  H01L2924/01076 ,  H01L2924/01078 ,  H01L2924/01082 ,  H01L2924/01083 ,  H01L2924/014 ,  H01L2924/12034 ,  H01L2924/13091 ,  H01L2924/14 ,  H01L2924/1433 ,  H01L2924/1461 ,  H01L2924/15153 ,  H01L2924/15157 ,  H01L2924/15165 ,  H01L2924/19041 ,  H01L2924/19042 ,  H01L2924/19043 ,  H01L2924/30105 ,  H01L2924/30107 ,  H01L2924/3011 ,  H01L2924/30111 ,  H03B5/1215 ,  H03B5/1228 ,  H03B5/1243 ,  H03B5/1265 ,  H03B5/1293 ,  H03B2201/0208 ,  H03B2201/0266 ,  H03C3/225 ,  H03D3/007 ,  H03F1/0205 ,  H03F1/08 ,  H03F1/223 ,  H03F1/3294 ,  H03F3/191 ,  H03F3/195 ,  H03F3/4521 ,  H03F3/60 ,  H03F2200/111 ,  H03F2200/225 ,  H03F2200/294 ,  H03F2200/331 ,  H03F2200/366 ,  H03F2200/372 ,  H03F2200/391 ,  H03F2200/429 ,  H03F2200/543 ,  H03F2200/78 ,  H03F2203/45256 ,  H03G3/3068 ,  H03J2200/10 ,  H03L7/099 ,  H03L7/10 ,  H03L7/185 ,  H04B1/006 ,  H04B1/40 ,  H04W24/00 ,  H04W80/00 ,  H04W88/02 ,  H01L2924/00011 ,  H01L2224/45099 ,  H01L2924/00

Abstract: A fully integrated, programmable mixed-signal radio transceiver comprising a radio frequency integrated circuit (RFIC) which is frequency and protocol agnostic with digital inputs and outputs, the radio transceiver being programmable and configurable for multiple radio frequency bands and standards and being capable of connecting to many networks and service providers. The RFIC includes a tunable resonant circuit that includes a transmission line having an inductance, a plurality of switchable capacitors configured to be switched into and out of the tunable resonant circuit in response to a first control signal, and at least one variable capacitor that can be varied in response to a second control signal, wherein a center resonant frequency of the resonant circuit is electronically tunable responsive to the first and second control signals that control a first capacitance value of the plurality of switchable capacitors and a second capacitance value of the at least one variable capacitor.

公开(公告)号：US20050219002A1

公开(公告)日：2005-10-06

申请号：US10814406

申请日：2004-03-31

Applicant: Vikram Magoon ,  Georgios Asmanis

Inventor： Vikram Magoon ,  Georgios Asmanis

IPC: H03B1/00 ,  H03B5/12 ,  H03L7/00

CPC classification number: H03B5/1215 ,  H03B5/1228 ,  H03B5/1265 ,  H03B2201/0266 ,  H03J2200/10

Abstract: A technique includes selectively coupling capacitors of oscillator stages together to set an oscillation frequency. In some embodiments of the invention, the capacitors may be formed primarily from parasitic capacitance.

Abstract translation: 一种技术包括将振荡器级的电容器选择性地耦合在一起以设置振荡频率。 在本发明的一些实施例中，电容器可以主要由寄生电容形成。

公开(公告)号：US06909883B2

公开(公告)日：2005-06-21

申请号：US10183504

申请日：2002-06-28

Applicant: Masanao Fujiwara

Inventor： Masanao Fujiwara

IPC: H03B1/00 ,  H03B5/32 ,  H04B1/26 ,  H04B1/28 ,  H04B1/40

CPC classification number: H03B5/32 ,  H03B2201/0266 ,  H04B1/28

Abstract: A receiving section has one crystal resonator 122, an inductor 124 able to be connected in series to the crystal resonator 122, and a channel change-over switch 123 for switching whether the inductor 124 is connected to the crystal resonator 122 and the ground, or the crystal resonator 122 is directly connected to the ground, and an adjusting change-over switch 125. A transmitting section has one crystal resonator 321, plural frequency setting adjusting circuits 312,313 each including an inductor 314,316 for determining a frequency oscillated from an oscillator, and a switching connection switch 318 for switching and connecting one of the plural frequency setting adjusting circuits 312,313 to a modulating circuit 320 connected to the crystal resonator 321.

Abstract translation: 接收部具有一个晶体谐振器122，能够与晶体谐振器122串联连接的电感器124和用于切换电感器124是否连接到晶体谐振器122和地的通道转换开关123，或者 晶体谐振器122直接连接到地，以及调节转换开关125。 发送部具有一个晶体谐振器321，多个频率设定调整电路312,313，各自包括用于确定从振荡器振荡的频率的电感器314,316，以及用于将多个频率设定调整电路312,313中的一个切换并连接到 调制电路320连接到晶体谐振器321。

公开(公告)号：US06842083B2

公开(公告)日：2005-01-11

申请号：US10268176

申请日：2002-10-10

Applicant: Reinhard Losehand ,  Hubert Werthmann ,  Ulf Bartl

Inventor： Reinhard Losehand ,  Hubert Werthmann ,  Ulf Bartl

IPC: H01L27/04 ,  H01L21/822 ,  H03B1/00 ,  H03B5/08 ,  H03B5/12 ,  H03J3/18 ,  H03J3/20 ,  H03L7/00

CPC classification number: H03J3/20 ,  H03B2201/0266 ,  H03J3/185 ,  H03J2200/10

Abstract: A conductor network includes trimming capacitors and is connected in parallel with a resonant circuit. The trimming capacitors can be connected in parallel with the variable-capacitance diodes in the resonant circuit through PIN diodes, enabling trimming of the resonant circuit.

Abstract translation: 导体网络包括微调电容器并且与谐振电路并联连接。 微调电容器可以通过PIN二极管与谐振电路中的可变电容二极管并联连接，从而能够修整谐振电路。

公开(公告)号：US06828868B2

公开(公告)日：2004-12-07

申请号：US10254663

申请日：2002-09-26

Applicant: Masaru Sano

Inventor： Masaru Sano

IPC: H03B500

CPC classification number: H03B5/1231 ,  H03B5/1215 ,  H03B5/1265 ,  H03B2201/0266 ,  H03J2200/10

Abstract: In an embodiment consistent with the present invention, a semiconductor device having a oscillating circuit comprises: a first transistor having a control electrode and having one end and the other end of a current path thereof; a second transistor having a control electrode and having one end and the other end of a current path thereof, the control electrode is coupled to one end of the current path of the first transistor and one end of the current path thereof is coupled to the control electrode of the first transistor; a current mirror circuit that supplies a current to one end of the current path of the first transistor and one end of the current path of the second transistor; an inductor coupled to one end of the current path of the first transistor and one end of the current path of the second transistor; a first capacitor coupled to one end of the current path of the first transistor and one end of the current path of the second transistor; and a second capacitor and a switch element coupled with, are coupled one end of the current path of the first transistor and one end of the current path of the second transistor.

Abstract translation: 在与本发明一致的实施例中，具有振荡电路的半导体器件包括：第一晶体管，具有控制电极，其一端和另一端具有电流通路; 具有控制电极并具有电流通路的一端和另一端的第二晶体管，所述控制电极耦合到所述第一晶体管的电流通路的一端，并且其电流通路的一端与所述控制电极 第一晶体管的电极; 电流镜电路，其向第一晶体管的电流路径的一端和第二晶体管的电流路径的一端供给电流; 耦合到第一晶体管的电流路径的一端和第二晶体管的电流路径的一端的电感器; 耦合到所述第一晶体管的电流路径的一端和所述第二晶体管的电流路径的一端的第一电容器; 并且耦合有第二电容器和开关元件，耦合第一晶体管的电流路径的一端和第二晶体管的电流路径的一端。

公开(公告)号：US20040080374A1

公开(公告)日：2004-04-29

申请号：US10685030

申请日：2003-10-14

Applicant: NEC Electronics Corporation

Inventor： Yoshinori Muramatsu

IPC: H03B005/00

CPC classification number: H03B5/1228 ,  H03B5/1212 ,  H03B5/1221 ,  H03B5/124 ,  H03B5/1265 ,  H03B5/1293 ,  H03B2201/0266

Abstract: An LC circuit section and a negative resistance section are provided for an LC-VCO. A pair of output terminals are provided for the LC circuit section and an inductor is connected between the output terminals, and two variable capacitors are connected in series to each other parallelly with the inductor. Further, the LC circuit section is provided with a pair of capacitors and a pair of switches that are connected between the capacitors and a ground potential and consist of NMOS transistors. Moreover, a switch that consists of the NMOS transistor is connected between a node, which is between one capacitor and one switch, and a node, which is between the other capacitor and the other switch, and the two nodes are connected to each other when the switch is closed.

Abstract translation: 为LC-VCO提供LC电路部分和负电阻部分。 为LC电路部分提供一对输出端子，并且在输出端子之间连接电感器，并且两个可变电容器彼此并联连接到电感器。 此外，LC电路部分设置有一对电容器和一对连接在电容器和接地电位之间并由NMOS晶体管组成的开关。 此外，由NMOS晶体管组成的开关连接在一个电容器和一个开关之间的节点和位于另一个电容器和另一个开关之间的节点之间，并且两个节点彼此连接，当 开关关闭。

公开(公告)号：US20030193373A1

公开(公告)日：2003-10-16

申请号：US10121366

申请日：2002-04-11

Inventor： Evan S. McCarthy ,  Jackie Cheng

IPC: H03B005/32

CPC classification number: H03B5/08 ,  H03B2201/0208 ,  H03B2201/0266 ,  H03J2200/10

Abstract: A programmable capacitive network for use in a tunable resonant circuit is set forth that may be used in a number of different applications, but is particularly useful in the tuning of a voltage controlled oscillator formed on a substrate, such as a semiconductor substrate or the like. The programmable capacitive network includes a plurality of capacitive elements. An interconnected network of voltage gate elements and fuse elements are interconnected with the capacitive elements to selectively connect one or more of the plurality of capacitive elements in the resonant circuit in response to at least one program control signal. In accordance with one embodiment, the voltage gate elements are diodes.

Abstract translation: 阐述了一种用于可调谐谐振电路的可编程电容网络，可用于许多不同的应用，但是在对诸如半导体衬底等的衬底上形成的压控振荡器进行调谐特别有用 。 可编程电容网络包括多个电容元件。 电压门元件和熔丝元件的互连网络与电容元件互连，以响应于至少一个程序控制信号选择性地连接谐振电路中的多个电容元件中的一个或多个。 根据一个实施例，电压门元件是二极管。

公开(公告)号：US20030030497A1

公开(公告)日：2003-02-13

申请号：US10171762

申请日：2002-06-17

Applicant: Broadcom Corporation

Inventor： Ralph Duncan ,  Tom W. Kwan

IPC: H03L007/00

CPC classification number: H03L7/23 ,  H01F17/0006 ,  H01F17/0013 ,  H01F2017/0053 ,  H01F2021/125 ,  H01L23/5227 ,  H01L27/0248 ,  H01L27/08 ,  H01L2924/0002 ,  H01L2924/09701 ,  H01L2924/3011 ,  H03B5/1209 ,  H03B5/1212 ,  H03B5/1228 ,  H03B5/1253 ,  H03B5/364 ,  H03B2200/0038 ,  H03B2201/025 ,  H03B2201/0266 ,  H03D7/161 ,  H03D7/18 ,  H03G1/0029 ,  H03H11/1291 ,  H03J1/0075 ,  H03J3/04 ,  H03J3/08 ,  H03J3/185 ,  H03J2200/10 ,  H03L1/023 ,  H03L7/10 ,  H01L2924/00

Abstract: An integrated VCO having an improved tuning range over process and temperature variations. There is therefore provided in a present embodiment of the invention an integrated VCO. The VCO comprises, a substrate, a VCO tuning control circuit responsive to a VCO state variable that is disposed upon the substrate, and a VCO disposed upon the substrate, having a tuning control voltage input falling within a VCO tuning range for adjusting a VCO frequency output, and having its tuning range adjusted by the tuning control circuit in response to the VCO state variable.

Abstract translation: 具有改进的调谐范围超过过程和温度变化的集成VCO。 因此，在本发明的本实施例中提供了集成VCO。 VCO包括：衬底，响应于设置在衬底上的VCO状态变量的VCO调谐控制电路，以及设置在衬底上的VCO，具有落在VCO调谐范围内的调谐控制电压输入，用于调节VCO频率 输出，并且其调谐范围由调谐控制电路响应于VCO状态变量而调整。