公开(公告)号：US20160134293A1

公开(公告)日：2016-05-12

申请号：US14995471

申请日：2016-01-14

Applicant: Tensorcom, Inc.

Inventor： Dai Dai

IPC: H03M1/00 ,  H03M1/18 ,  H03M1/08 ,  H03H11/48 ,  H03K5/24

CPC classification number: H03K5/2481 ,  H03H11/481 ,  H03M1/002 ,  H03M1/0836 ,  H03M1/0845 ,  H03M1/183

Abstract: A negative-capacitance circuit comprises a first node coupled to a drain of a first transistor and a gate of a second transistor; a second node coupled to a drain of the second transistor and a gate of the first transistor; a capacitor coupled between a source of the first transistor and a source of the second transistor; a first current mirror coupled between a supply voltage and the source of the first transistor; and a second current mirror coupled between the supply voltage and the source of the second transistor. The circuit can be configured to drive the differential capacitive load between the first and second nodes in a shorter time period, thereby increasing the transfer bandwidth of the differential signal.

Abstract translation: 负电容电路包括耦合到第一晶体管的漏极和第二晶体管的栅极的第一节点; 耦合到所述第二晶体管的漏极和所述第一晶体管的栅极的第二节点; 耦合在所述第一晶体管的源极和所述第二晶体管的源极之间的电容器; 耦合在电源电压和第一晶体管的源极之间的第一电流镜; 以及耦合在电源电压和第二晶体管的源极之间的第二电流镜。 该电路可被配置为在较短时间段内驱动第一和第二节点之间的差分电容性负载，从而增加差分信号的传输带宽。

公开(公告)号：US09287836B2

公开(公告)日：2016-03-15

申请号：US14108312

申请日：2013-12-16

Applicant: Tensorcom, Inc.

Inventor： Zaw Soe

IPC: H04B1/16 ,  H03F3/19 ,  H03F3/387 ,  H03F1/22 ,  H03F3/193 ,  H03D7/12 ,  H03D7/14 ,  H03D7/16

CPC classification number: H03F1/42 ,  H03D7/125 ,  H03D7/1441 ,  H03D7/1466 ,  H03D7/165 ,  H03F1/223 ,  H03F3/193 ,  H03F3/387 ,  H03F3/45071 ,  H03F3/45179 ,  H03F2200/108 ,  H03F2200/294 ,  H03F2200/451 ,  H03F2200/492 ,  H03F2200/72 ,  H03F2200/75 ,  H04L27/38

Abstract: A cascode common source and common gate LNAs operating at 60 GHz are introduced and described. The cascode common source LNA is simulated to arrive at an optimum ratio of upper device width to the lower device width. The voltage output of the cascode common source LNA is translated into a current to feed and apply energy to the mixer stage. These input current signals apply the energy associated with the current directly into the switched capacitors in the mixer to minimize the overall power dissipation of the system. The LNA is capacitively coupled to the mixer switches in the I and Q mixers and are enabled and disabled by the clocks generated by the quadrature oscillator. These signals are then amplified by a differential amplifier to generate the sum and difference frequency spectra.

Abstract translation: 引入并描述了以60GHz操作的共源共栅和公共栅极LNA。 对共源共栅源LNA进行模拟，以达到上部器件宽度与较低器件宽度的最佳比例。 共源共栅源LNA的电压输出转换为电流以馈送并将能量施加到混频器级。 这些输入电流信号将与电流相关联的能量直接施加到混频器中的开关电容器中，以最小化系统的总功耗。 LNA电容耦合到I和Q混频器中的混频器开关，并由正交振荡器产生的时钟使能和禁止。 然后，这些信号被差分放大器放大以产生和和差频谱。

公开(公告)号：US09197222B2

公开(公告)日：2015-11-24

申请号：US14108329

申请日：2013-12-16

Applicant: Tensorcom, Inc.

Inventor： Syed Enam Rehman

IPC: H03B5/08 ,  H03L7/00 ,  H03L1/02 ,  H03B1/00 ,  H03L7/18 ,  H03B5/12

CPC classification number: H03L7/00 ,  H03B1/00 ,  H03B5/1212 ,  H03B5/1228 ,  H03B5/1243 ,  H03B5/1265 ,  H03B2200/0062 ,  H03L1/023 ,  H03L7/18

Abstract: Capacitive adjustment in an RCL resonant circuit is typically performed by adjusting a DC voltage being applied to one side of the capacitor. One side of the capacitor is usually connected to either the output node or the gate of a regenerative circuit in an RCL resonant circuit. The capacitance loading the resonant circuit becomes a function of the DC voltage and the AC sinusoidal signal generated by the resonant circuit. By capacitively coupling both nodes of the capacitor, a DC voltage can control the value of the capacitor over the full swing of the output waveform. In addition, instead of the RCL resonant circuit driving a single differential function loading the outputs, each output drives an independent single ended function; thereby providing two simultaneous operations being determined in place of the one differential function.

Abstract translation: RCL谐振电路中的电容调整通常通过调整施加到电容器一侧的直流电压来进行。 电容器的一侧通常连接到RCL谐振电路中的再生电路的输出节点或栅极。 谐振电路的电容成为由谐振电路产生的直流电压和交流正弦信号的函数。 通过电容耦合电容器的两个节点，DC电压可以在输出波形的全摆幅时控制电容器的值。 此外，代替RCL谐振电路驱动负载输出的单个差分功能，每个输出驱动独立的单端功能; 从而提供两个同时的操作来代替一个差分功能。

公开(公告)号：US08803596B2

公开(公告)日：2014-08-12

申请号：US14053189

申请日：2013-10-14

Applicant: Tensorcom, Inc.

Inventor： Zaw Soe

IPC: H03H11/12 ,  H03F3/45 ,  H03F3/50 ,  H03H3/00 ,  H03F3/195 ,  H03F3/30

CPC classification number: H03H11/1217 ,  H03F3/195 ,  H03F3/301 ,  H03F3/45179 ,  H03F3/505 ,  H03F2203/45528 ,  H03F2203/45544 ,  H03F2203/45594 ,  H03H3/00

Abstract: Sallen-Key filters require an operational amplifier with a large input impedance and a small output impedance to meet the external filter characteristics. This invention eliminates the need for internal feedback path for stability and increases the gain of a source follower which has characteristics matching the operational amplifier in the Sallen-Key filter. The source follower provides 6 dB of AC voltage gain and is substituted for the operational amplifier in the Sallen-Key filter. The Sallen-Key filter requires a differential configuration to generate all the required signals with their complements and uses these signals in a feed forward path. Furthermore, since the source follower uses only two n-channel stacked devices, the headroom voltage is maximized to several hundred millivolts for a 1.2V voltage supply in a 40 nm CMOS technology. Thus, the required 880 MHz bandwidth of the Sallen-Key filter can be easily met using the innovative source follower.

Abstract translation: Sallen-Key滤波器需要具有大输入阻抗和小输出阻抗的运算放大器，以满足外部滤波器特性。 本发明消除了对于稳定性的内部反馈路径的需要，并增加了具有与Sallen-Key滤波器中的运算放大器匹配的特性的源极跟随器的增益。 源极跟随器提供6 dB的交流电压增益，并代替Sallen-Key滤波器中的运算放大器。 Sallen-Key滤波器需要一个差分配置，以便产生所有需要的信号及其补码，并在前馈路径中使用这些信号。 此外，由于源极跟随器仅使用两个n沟道堆叠器件，因此在40nm CMOS技术中1.2V电压源的裕量电压最大可达数百毫伏。 因此，Sallen-Key滤波器所需的880 MHz带宽可以使用创新的源跟踪器轻松实现。

公开(公告)号：US20140104007A1

公开(公告)日：2014-04-17

申请号：US14108329

申请日：2013-12-16

Applicant: Tensorcom, Inc.

Inventor： Syed Enam Rehman

IPC: H03L7/00

CPC classification number: H03L7/00 ,  H03B1/00 ,  H03B5/1212 ,  H03B5/1228 ,  H03B5/1243 ,  H03B5/1265 ,  H03B2200/0062 ,  H03L1/023 ,  H03L7/18

Abstract: Capacitive adjustment in an RCL resonant circuit is typically performed by adjusting a DC voltage being applied to one side of the capacitor. One side of the capacitor is usually connected to either the output node or the gate of a regenerative circuit in an RCL resonant circuit. The capacitance loading the resonant circuit becomes a function of the DC voltage and the AC sinusoidal signal generated by the resonant circuit. By capacitively coupling both nodes of the capacitor, a DC voltage can control the value of the capacitor over the full swing of the output waveform. In addition, instead of the RCL resonant circuit driving a single differential function loading the outputs, each output drives an independent single ended function: thereby providing two simultaneous operations being determined in place of the one differential function.

Abstract translation: RCL谐振电路中的电容调整通常通过调整施加到电容器一侧的直流电压来进行。 电容器的一侧通常连接到RCL谐振电路中的再生电路的输出节点或栅极。 谐振电路的电容成为由谐振电路产生的直流电压和交流正弦信号的函数。 通过电容耦合电容器的两个节点，DC电压可以在输出波形的全摆幅时控制电容器的值。 此外，代替RCL谐振电路驱动负载输出的单个差分功能，每个输出驱动独立的单端功能：从而提供两个同时操作来代替一个差分功能。

公开(公告)号：US20140097894A1

公开(公告)日：2014-04-10

申请号：US14108312

申请日：2013-12-16

Applicant: Tensorcom, Inc.

Inventor： Zaw Soe

IPC: H03F3/387

CPC classification number: H03F1/42 ,  H03D7/125 ,  H03D7/1441 ,  H03D7/1466 ,  H03D7/165 ,  H03F1/223 ,  H03F3/193 ,  H03F3/387 ,  H03F3/45071 ,  H03F3/45179 ,  H03F2200/108 ,  H03F2200/294 ,  H03F2200/451 ,  H03F2200/492 ,  H03F2200/72 ,  H03F2200/75 ,  H04L27/38

Abstract: A cascode common source and common gate LNAs operating at 60 GHz are introduced and described. The cascode common source LNA is simulated to arrive at an optimum ratio of upper device width to the lower device width. The voltage output of the cascode common source LNA is translated into a current to feed and apply energy to the mixer stage. These input current signals apply the energy associated with the current directly into the switched capacitors in the mixer to minimize the overall power dissipation of the system. The LNA is capacitively coupled to the mixer switches in the I and Q mixers and are enabled and disabled by the clocks generated by the quadrature oscillator. These signals are then amplified by a differential amplifier to generate the sum and difference frequency spectra.

Abstract translation: 引入并描述了以60GHz操作的共源共栅和公共栅极LNA。 对共源共栅源LNA进行模拟，以达到上部器件宽度与较低器件宽度的最佳比例。 共源共栅源LNA的电压输出转换为电流以馈送并将能量施加到混频器级。 这些输入电流信号将与电流相关联的能量直接施加到混频器中的开关电容器中，以最小化系统的总功耗。 LNA电容耦合到I和Q混频器中的混频器开关，并由正交振荡器产生的时钟使能和禁止。 然后，这些信号被差分放大器放大以产生和和差频谱。

公开(公告)号：US20140091869A1

公开(公告)日：2014-04-03

申请号：US13632173

申请日：2012-10-01

Applicant: TENSORCOM, INC.

Inventor： KhongMeng Tham

IPC: H03L5/00

CPC classification number: H03B5/364 ,  H03B5/06 ,  H03B2200/0088 ,  H03B2200/0094 ,  H03B2201/031 ,  H03L5/00

Abstract: A large gain is used to start up the oscillation of the crystal quickly. Once the oscillation starts, the amplitude is detected. A control circuit determines based on the measured amplitude to disable a low resistance path in the controlled switch array to reduce the applied gain below the power dissipation specification of the crystal. Another technique introduces a mixed-signal controlled power supply multi-path resistive array which tailors the maximum current to the crystal. A successive approximation register converts the amplitude into several partitions and enables/disables one of several power routing paths to the inverter of the oscillator. This allows a better match between the crystal selected by the customer and the on-chip drive circuitry to power up the oscillator without stressing the crystal. The “l/f” noise of the oscillator circuit is minimized by operating transistors in the triode region instead of the linear region.

Abstract translation: 使用大的增益快速启动晶体振荡。 一旦振荡开始，就检测振幅。 控制电路基于测量的幅度来确定禁用受控开关阵列中的低电阻路径，以将施加的增益降低到低于晶体的功率耗散规格。 另一种技术引入了一种混合信号控制电源多路径电阻阵列，可以调整晶体的最大电流。 逐次逼近寄存器将振幅转换成几个分区，并使能/禁用振荡器的反相器的几个电源路由路径之一。 这允许由客户选择的晶体和片上驱动电路之间更好地匹配，以在不强调晶体的情况下加电振荡器。 通过在三极管区域中操作晶体管而不是线性区域来使振荡器电路的“l / f”噪声最小化。

公开(公告)号：US08674755B2

公开(公告)日：2014-03-18

申请号：US13916535

申请日：2013-06-12

Applicant: Tensorcom, Inc.

Inventor： Zaw Soe

IPC: H03F3/45

CPC classification number: H03H11/1217 ,  H03F3/195 ,  H03F3/301 ,  H03F3/45179 ,  H03F3/505 ,  H03F2203/45528 ,  H03F2203/45544 ,  H03F2203/45594 ,  H03H3/00

Abstract: A differential amplifier comprising a first upper device and a first lower device series coupled between two power supplies and a second upper device and a second lower device series coupled between the two power supplies. A first DC voltage enables the first upper device and the second upper device and a second DC voltage regulates current flow in the first lower device and the second lower device. An AC signal component is coupled to the first upper device and the second lower device while the AC signal complement is coupled to the first lower device and the second upper device. Separate RC networks couple the AC signals to their respective device. A first and second output signal forms between the upper device and the lower device, respectively. All the devices are same channel type.

Abstract translation: 一种差分放大器，包括耦合在两个电源之间的第一上部装置和第一下部装置系列，以及耦合在两个电源之间的第二上部装置和第二下部装置。 第一直流电压使得第一上部装置和第二上部装置能够和第二直流电压调节第一下部装置和第二下部装置中的电流。 当AC信号补码耦合到第一下部装置和第二上部装置时，AC信号分量耦合到第一上部装置和第二下部装置。 单独的RC网络将AC信号耦合到其相应的设备。 分别在上部装置和下部装置之间形成第一和第二输出信号。 所有设备的通道类型相同。

公开(公告)号：US20130285746A1

公开(公告)日：2013-10-31

申请号：US13916535

申请日：2013-06-12

Applicant: Tensorcom, Inc.

Inventor： Zaw Soe

IPC: H03F3/45

CPC classification number: H03H11/1217 ,  H03F3/195 ,  H03F3/301 ,  H03F3/45179 ,  H03F3/505 ,  H03F2203/45528 ,  H03F2203/45544 ,  H03F2203/45594 ,  H03H3/00

Abstract: A differential amplifier comprising a first upper device and a first lower device series coupled between two power supplies and a second upper device and a second lower device series coupled between the two power supplies. A first DC voltage enables the first upper device and the second upper device and a second DC voltage regulates current flow in the first lower device and the second lower device. An AC signal component is coupled to the first upper device and the second lower device while the AC signal complement is coupled to the first lower device and the second upper device. Separate RC networks couple the AC signals to their respective device. A first and second output signal forms between the upper device and the lower device, respectively. All the devices are same channel type.

Abstract translation: 一种差分放大器，包括耦合在两个电源之间的第一上部装置和第一下部装置系列，以及耦合在两个电源之间的第二上部装置和第二下部装置。 第一直流电压使得第一上部装置和第二上部装置能够和第二直流电压调节第一下部装置和第二下部装置中的电流。 当AC信号补码耦合到第一下部装置和第二上部装置时，AC信号分量耦合到第一上部装置和第二下部装置。 单独的RC网络将AC信号耦合到其相应的设备。 分别在上部装置和下部装置之间形成第一和第二输出信号。 所有设备的通道类型相同。