-
公开(公告)号：US20240235564A9
公开(公告)日：2024-07-11
申请号：US18081028
申请日：2022-12-14
Applicant: Texas Instruments Incorporated
Inventor： Subhashish Mukherjee , Yogesh Darwhekar
CPC classification number: H03M1/0604 , H03K21/026
Abstract: A digital-to-time converter (DTC) circuit. The DTC circuit includes a charge node. A variable current source has a source input and a source output. The source input is coupled to a DTC digital input and the source output is coupled to the charge node. A capacitor has a first capacitor electrode and a second capacitor electrode. The first capacitor electrode is coupled to the charge node. A comparator has a first comparator input, a second comparator input, and a comparator output. The first comparator input is coupled to the charge node, the second comparator input is coupled to a reference voltage terminal, and the comparator output is coupled to a DTC output. A pre-charge circuit has a pre-charge control input and a pre-charge output. The pre-charge control input is coupled to a DTC pre-charge input and the pre-charge output is coupled to the capacitor.
-
22.发明申请公开(公告)号：US20210249336A1
公开(公告)日：2021-08-12
申请号：US17242121
申请日：2021-04-27
Applicant: Texas Instruments Incorporated
Inventor： Benjamin Michael Sutton , Sreenivasan K. Koduri , Subhashish Mukherjee
IPC: H01L23/495
Abstract: A coupling device provides galvanic isolation using a leadframe that is configured to support two integrated circuit chips in a coplanar manner. Each chip contains an inductive coupling coil. The lead frame includes a set of bond pads for attaching bond wires to couple to the two integrated circuit chips. Two separated die attach pads support the two chips. Each die attach pad is configured to support one of the two integrated circuit chips with a plurality of cantilevered fingers.
-
23.发明申请公开(公告)号：US20200313945A1
公开(公告)日：2020-10-01
申请号：US16900010
申请日：2020-06-12
Applicant: Texas Instruments Incorporated
Abstract: Methods and apparatus for performing a high speed phase demodulation scheme using a low bandwidth phase-lock loop are disclosed. An example apparatus includes a low bandwidth phase lock loop to lock to a data signal at a first phase, the data signal capable of oscillating at the first phase or a second phase; and output a first output signal at the first phase and a second output signal at the second phase, the first output signal or the second output signal being utilized in a feedback loop of the low bandwidth phase lock loop. The example apparatus further includes a fast phase change detection circuit coupled to the low bandwidth phase lock loop to determine whether the data signal is oscillating at the first phase or the second phase.
-
公开(公告)号：US10447202B2
公开(公告)日：2019-10-15
申请号：US15427856
申请日：2017-02-08
Applicant: TEXAS INSTRUMENTS INCORPORATED
Abstract: Apparatus for communication across a capacitively coupled channel are disclosed herein. An example circuit includes a first plate substantially parallel to a substrate, thereby forming a first capacitance intermediate the first plate and the substrate. A second plate is substantially parallel to the substrate and the first plate, the first plate intermediate the substrate and the second plate. A third plate is substantially parallel to the substrate, thereby forming a second capacitance intermediate the third plate and the substrate. A fourth plate is substantially parallel to the substrate and the third plate, the third plate intermediate the substrate and the fourth plate. An inductor is connected to the first plate and the third plate, the inductor to, in combination with the first capacitance and the second capacitance, form an LC amplifier.
-
公开(公告)号：US10382078B2
公开(公告)日：2019-08-13
申请号：US15486909
申请日：2017-04-13
Applicant: TEXAS INSTRUMENTS INCORPORATED
Inventor： Subhashish Mukherjee , Yogesh Darwhekar , Nagaraj V. Dixit , Raghu Ganesan
IPC: H04B1/10 , H04B1/16 , H04B17/318 , H03L7/099 , H03J7/00 , H03L7/087 , H03L7/18 , H04B1/12 , H03G3/30
Abstract: At least some embodiments are directed to a receiver system that comprises a first oscillation module configured to provide oscillating signals of differing frequencies and a second oscillation module configured to provide other oscillating signals of the differing frequencies. The second oscillation module is configured to produce less noise than the first oscillation module. A controller is coupled to the first and second oscillation modules and configured to selectively activate and deactivate each of the first and second oscillation modules based on signal strengths of primary signals received via a wireless medium and based on signal strengths of interference signals received via the wireless medium.
-
Patent Agency Ranking
公开(公告)号：US20180226920A1
公开(公告)日：2018-08-09
申请号：US15427856
申请日：2017-02-08
Applicant: TEXAS INSTRUMENTS INCORPORATED
Abstract: Apparatus for communication across a capacitively coupled channel are disclosed herein. An example circuit includes a first plate substantially parallel to a substrate, thereby forming a first capacitance intermediate the first plate and the substrate. A second plate is substantially parallel to the substrate and the first plate, the first plate intermediate the substrate and the second plate. A third plate is substantially parallel to the substrate, thereby forming a second capacitance intermediate the third plate and the substrate. A fourth plate is substantially parallel to the substrate and the third plate, the third plate intermediate the substrate and the fourth plate. An inductor is connected to the first plate and the third plate, the inductor to, in combination with the first capacitance and the second capacitance, form an LC amplifier.
-
公开(公告)号：US10014844B1
公开(公告)日：2018-07-03
申请号：US15395353
申请日：2016-12-30
Applicant: TEXAS INSTRUMENTS INCORPORATED
Inventor： Kumar Anurag Shrivastava , Subhashish Mukherjee , Madhulatha Bonu
Abstract: A circuit includes an amplifier having an input that receives an alternating current (AC) waveform and an output that is coupled to a power source via a bias resistor. A bulk acoustic wave (BAW) resonator is coupled in parallel to the bias resistor via the power source and the amplifier output. The BAW resonator and the amplifier output forms a band pass filter to filter the AC waveform received at the amplifier input and to provide a filtered AC waveform at the amplifier output.
-
公开(公告)号：US09893916B2
公开(公告)日：2018-02-13
申请号：US15200706
申请日：2016-07-01
Applicant: Texas Instruments Incorporated
CPC classification number: H04L27/22 , H03D3/00 , H03K19/21 , H03L7/081 , H03L7/087 , H03L7/113 , H04L7/0087 , H04L7/0331 , H04L27/2271
Abstract: Methods and apparatus for performing a high speed phase demodulation scheme using a low bandwidth phase-lock loop are disclosed. An example apparatus includes a low bandwidth phase lock loop to lock to a data signal at a first phase, the data signal capable of oscillating at the first phase or a second phase; and output a first output signal at the first phase and a second output signal at the second phase, the first output signal or the second output signal being utilized in a feedback loop of the low bandwidth phase lock loop. The example apparatus further includes a fast phase change detection circuit coupled to the low bandwidth phase lock loop to determine whether the data signal is oscillating at the first phase or the second phase; when the data signal is oscillating at the first phase, output a first logic value; and when the data signal is oscillating at the second phase, output a second logic value, the output of the fast phase change detection circuit being used to determine whether the first output signal or the second output signal will be utilized in the feedback loop of the low bandwidth phase lock loop.
-
公开(公告)号：US20160315670A1
公开(公告)日：2016-10-27
申请号：US15199611
申请日：2016-06-30
Applicant: TEXAS INSTRUMENTS INCORPORATED
Inventor： Subhashish Mukherjee , Anoop Bhat , Kumar Anurag Shrivastava
CPC classification number: H04B5/0087 , H04B5/0031 , H04L27/04
Abstract: In described examples, a method of inductive coupled communications includes providing a first resonant tank (first tank) and a second resonant tank (second tank) tuned to essentially the same resonant frequency, each having antenna coils and switches positioned for changing a Q and a bandwidth of their tank. The antenna coils are separated by a distance that provides near-field communications. The first tank is driven to for generating induced oscillations to transmit a predetermined number of carrier frequency cycles providing data. After the predetermined number of cycles, a switch is activated for widening the bandwidth of the first tank. Responsive to the oscillations in the first tank, the second tank begins induced oscillations. Upon detecting a bit associated with the induced oscillations, a switch is activated for widening the bandwidth of the second tank and a receiver circuit receiving an output of the second tank is reset.
Abstract translation: 在所描述的实例中，电感耦合通信的方法包括提供调谐到基本上相同谐振频率的第一谐振槽（第一箱）和第二谐振槽（第二箱），每个共振频率具有定位用于改变Q和A的天线线圈和开关 他们的坦克的带宽。 天线线圈分开一个提供近场通信的距离。 驱动第一坦克用于产生感应振荡以传送提供数据的预定数量的载波频率周期。 在预定数量的循环之后，启动开关以扩大第一箱的带宽。 响应于第一个罐中的振荡，第二个罐开始诱发振荡。 在检测到与感应振荡相关联的位时，启动开关用于加宽第二箱的带宽，并且接收接收第二箱的输出的接收器电路被复位。
-
30.发明申请DIGITAL CONTROLLED OSCILLATOR AND SWITCHABLE VARACTOR FOR HIGH FREQUENCY LOW NOISE OPERATION 有权数字控制振荡器和高频低噪声操作的可切换变频器公开(公告)号：US20160112006A1
公开(公告)日：2016-04-21
申请号：US14518001
申请日：2014-10-20
Applicant: Texas Instruments Incorporated
Inventor： Gireesh Rajendran , Rakesh Kumar , Subhashish Mukherjee , Ashish Lachhwani
IPC: H03B5/12
CPC classification number: H03B5/1212 , H03B5/1228 , H03B5/1265
Abstract: Low noise switchable varactors and digital controlled oscillator (DCO) circuitry are presented for creating alternating signals at controlled frequencies, including a first transistor for selectively coupling two capacitors between varactor output nodes when a control signal is in a first state, second and third transistors for selectively coupling first and second internal nodes between the respective capacitors and the first transistor with a third internal node when the control signal is in the first state, and an inverter disconnected from the first and second internal nodes to mitigate phase noise and operable to control the voltage of the third internal node according to the control signal.
Abstract translation: 提供了低噪声可切换变容二极管和数字控制振荡器（DCO）电路，用于在受控频率下产生交变信号，包括用于在控制信号处于第一状态时选择性地耦合变容二极管输出节点之间的两个电容器的第一晶体管，第二和第三晶体管 当控制信号处于第一状态时，选择性地将相应电容器和第一晶体管之间的第一和第二内部节点耦合到第三内部节点，并且逆变器从第一和第二内部节点断开以减轻相位噪声并且可操作地控制 根据控制信号，第三内部节点的电压。
-
-
-
-
-
-
-
-
-
Search Results
62
records
(took 0.023 seconds)
