摘要:
Embodiments of the present disclosure includes systems and methods for diagnosing and correcting deficiencies in operation of integrated circuits. A set of operational data of an integrated circuit is received by a network via a communication interface. A deficiency in operation of the integrated circuit is diagnosed based on the set of operational data. A correction is generated for improving operation of the integrated circuit based on the deficiency diagnosed. The correction is transmitted over the network via the communication interface to the integrated circuit.
摘要:
Embodiments of the present disclosure describe methods, apparatus, and system configurations for cyclic redundancy check circuits using Galois-field arithmetic.
摘要:
A system having: a digital pre-distortion circuit fed by a digital signal for distorting the digital signal; a digital to analog converter (DAC) core section coupled to an output of the calibration circuit for converting the distorted digital signal into a corresponding analog signal, the DAC core section performing the conversion in accordance with a control signal fed to the DAC core section; a power amplifier (PA) section coupled to an output of the DAC core section for amplifying power in the analog signal; and a calibration circuit coupled to the output of the power amplifier for producing, in response to the power in the power amplified analog signal, the control signal for the DAC core section.
摘要:
A system having: a digital pre-distortion circuit fed by a digital signal for distorting the digital signal; a digital to analog converter (DAC) core section coupled to an output of the calibration circuit for converting the distorted digital signal into a corresponding analog signal, the DAC core section performing the conversion in accordance with a control signal fed to the DAC core section; a power amplifier (PA) section coupled to an output of the DAC core section for amplifying power in the analog signal; and a calibration circuit coupled to the output of the power amplifier for producing, in response to the power in the power amplified analog signal, the control signal for the DAC core section.
摘要:
A D/A converter includes a D/A converter base part having a first D/A converter unit performing D/A conversion of high order bits and a second D/A converter unit performing D/A conversion of low order bits and including an auxiliary bit assigned an identical weight to a least significant bit, a correction D/A converter part, an error detection processing section generating a digital code to be set to a correction D/A converter unit in the correction D/A converter part, and a control section. The control section compares one bit current source with another bit current source in a lower order than the one bit current source, and corrects a value of the one bit current source by causing the error detection processing section to generate the digital code to be set to the correction D/A converter unit when judging that the value of the one bit current source changes.
摘要:
A method for generating a digital signal representative of the pairing error between the channels of an analog digital conversion system with time interleaving, and a method for suppressing the errors thus calculated and an analog digital conversion system with time interleaving using same. The method comprises determining a spectrum (11-12) of the digital signal as a function of a frequency response of the analog digital conversion system with time interleaving (CAN 10) to at least one analog calibration signal (IC), and generating a “comb” signal whose spectrum is composed of frequency lines kFs/N, where Fs is a sampling frequency and N a number of channels of the analog digital conversion system with time interleaving, and whose amplitude is dependent on the frequency response of the analog digital converter.
摘要:
An A/D converter or D/A converter has an internal voltage selection device. Several reference voltages are available for selection by the selection device, which selects a voltage based on a selection signal and feeds the reference voltage to a conversion device of the converter. A correction network is provided for correcting offset and linearity errors. The plurality of reference voltages are freely selectable reference voltages, and the specific reference voltage defining the conversion is freely selectable, that is, it is freely selectable what reference voltage is used to carry out a respective conversion.
摘要:
An A/D converter or D/A converter has an internal voltage selection device. Several reference voltages are available for selection by the selection device, which selects a voltage based on a selection signal and feeds the reference voltage to a conversion device of the converter. A correction network is provided for correcting offset and linearity errors. The plurality of reference voltages are freely selectable reference voltages, and the specific reference voltage defining the conversion is freely selectable, that is, it is freely selectable what reference voltage is used to carry out a respective conversion.
摘要:
Embodiments of the present disclosure describe methods, apparatus, and system configurations for cyclic redundancy check circuits using Galois-field arithmetic.
摘要:
Various multi-lane ADCs are disclosed that substantially compensate for impairments present within various signals that result from various impairments, such as phase offset, amplitude offset, and/or DC offset to provide some examples, such that their respective digital output samples accurately represent their respective analog inputs. Generally, the various multi-lane ADCs determine various statistical relationships, such as various correlations to provide an example, between these various signals and various known calibration signals to quantify the phase offset, amplitude offset, and/or DC offset that may be present within the various signals. The various multi-lane ADCs adjust the various signals to substantially compensate for the phase offset, amplitude offset, and/or DC offset based upon these various statistical relationships such that their respective digital output samples accurately represent their respective analog inputs.