Abstract:
An integrated circuit chip includes an interleaved analog-to-digital converter (ADC) and an interleaving calibration circuit. The interleaved ADC includes a plurality of ADCs that are each configured to sample an analog signal. The interleaved ADC is configured to convert the analog signal into an interleaved analog-to-digital signal (IADC signal) that includes a plurality of spurious signals formed from mismatches between the plurality of ADCs. The interleaving calibration circuit is configured to receive the IADC signal from the interleaved ADC, generate a mismatch profile estimate corresponding to the plurality of spurious signals to generate one or more mismatch profile estimates, determine whether a first mismatch profile estimate is in a frequency band of interest, and, in response to a determination that the first mismatch profile estimate is in the frequency band of interest, generate a set of model parameters based on the first mismatch profile estimate.
Abstract:
A system and method are disclosed for providing electrically isolated communications between two USB2 devices. Two isolating eUSB2 repeaters are utilized to implement a digital isolation barrier between the two USB2 devices. The isolating eUSB2 repeaters are configured to broker isolated communications between the two USB2 devices using a modified eUSB2 protocol that allows the two isolating eUSB2 repeaters to interoperate across the isolating barrier. The modified eUSB2 protocol allows the two isolating eUSB2 repeaters to broker isolating communications on behalf of the USB2 devices without the use of an accurate clock signal. The modified eUSB2 protocol utilized by the isolating eUSB2 repeaters is configured in particular to support certain end-of-packet translations between USB2 data and the modified eUSB2 protocol, management of certain USB2 bus state transitions and assignment of roles to the two isolating eUSB2 repeaters.
Abstract:
An integrated circuit (“IC”) assembly includes an IC die with a metallization layer on a top surface thereof. A plurality of lead wires are bonded at first end portions thereof to the metallization layer. A conductive layer is attached to the metallization layer and covers the first ends of the lead wires.
Abstract:
A method is provided. A first enable signal is asserted so as to enable a first driver, where the first driver has a first output and a first parasitic capacitance. A second enable signal is asserted so as to enable a second driver, where the second driver has a second output and a second parasitic capacitance. The first and second outputs are coupled together by a switching network when the second driver is enabled. Pulses from complementary first and second radio frequency (RF) signals are applied to the first driver, where there is a first set of free-fly intervals between consecutive pulses from the first and second RF signals, and pulses from complementary third and fourth RF signals are applied to the second driver, wherein there is a second set of free-fly interval between consecutive pulses from the third and fourth RF signals.
Abstract:
A socket for receiving a line of contact pins is formed of modules connected together. The modules have three, four or five pin receiving openings and are joined to one another by dovetail connectors to form an elongated body having the desired number of pin receiving openings. Contacts are provided in the pin receiving openings to electrically connect with the pins. The modules have a ledge on which rests a work surface.
Abstract:
Embodiments of methods and systems for supporting coexistence of multiple technologies in a Power Line Communication (PLC) network are disclosed. A long coexistence preamble sequence may be transmitted by a device that has been forced to back off the PLC channel multiple times. The long coexistence sequence provides a way for the device to request channel access from devices on the channel using other technology. The device may transmit a data packet after transmitting the long coexistence preamble sequence. A network duty cycle time may also be defined as a maximum allowed duration for nodes of the same network to access the channel. When the network duty cycle time occurs, all nodes will back off the channel for a duty cycle extended inter frame space before transmitting again. The long coexistence preamble sequence and the network duty cycle time may be used together.
Abstract:
The disclosure provides an amplifier. The amplifier includes a first transistor that receives a first input. A second transistor receives a second input. A plurality of impedance networks is coupled between the first transistor and the second transistor. At least one impedance network of the plurality of impedance networks includes a first impedance path and a second impedance path. The first impedance path is activated during single ended operation, and the second impedance path is activated during differential operation.
Abstract:
A method of forming packaged semiconductor devices includes providing a lead frame sheet of flat no-lead lead frames having a semiconductor die on a die pad, terminals, and plastic encapsulation except on a back side of the sheet to provide an exposed thermal die pad and exposed back sides of the terminals. Partial sawing in saw lanes begins from the back side through the terminals terminating within the plastic encapsulation to provide exposed side walls of the terminals and of the plastic encapsulation. The exposed thermal pad and exposed back side of the terminals are all shorted together to form exposed electrically interconnected metal surfaces (interconnected surfaces). The interconnected surfaces are electroplated with a solder wetable metal or metal alloy plating layer. The interconnected surfaces are decoupled. A second sawing in the saw lanes finishes sawing through the plastic encapsulation to provide singulation, forming a plurality of packaged semiconductor devices.
Abstract:
A system on chip (SoC) provides a nonvolatile memory array that is configured as n rows by m columns of bit cells. Each of the bit cells is configured to store a bit of data. There are m bit lines each coupled to a corresponding one of the m columns of bit cells. There are m write drivers each coupled to a corresponding one of the m bit lines, wherein the m drivers each comprise a write one circuit and a write zero circuit. The m drivers are operable to write all ones into a row of bit cells in response to a first control signal coupled to the write one circuits and to write all zeros into a row of bit cells in response to a second control signal coupled to the write zero circuits.
Abstract:
Various apparatuses, methods and systems for frequency dividing a clock signal are disclosed herein. For example, some embodiments of the present invention provide an apparatus including a plurality of multiplexers connected in series with the clock signal, each having a plurality of inputs of different phase delays. The apparatus also includes a delta sigma modulator connected to control inputs on the plurality of multiplexers. The delta sigma modulator is adapted to repeatedly select different ones of the pluralities of inputs of different phase delays in the plurality of multiplexers to change a divide ratio between the clock signal and an output of the plurality of multiplexers. The apparatus also includes a multiplexer usage accumulator connected to the delta sigma modulator to track usage of the plurality of multiplexers. The apparatus also includes a scrambler circuit connected between the delta sigma modulator and the control inputs on the plurality of multiplexers, adapted to control settings in the plurality of multiplexers based at least in part on the multiplexer usage accumulator.