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APPARATUS AND METHOD FOR IN SITU ANALOG SIGNAL DIAGNOSTIC AND DEBUGGING WITH CALIBRATED ANALOG-TO-DIGITAL CONVERTER
APPARATUS AND METHOD FOR IN SITU ANALOG SIGNAL DIAGNOSTIC AND DEBUGGING WITH CALIBRATED ANALOG-TO-DIGITAL CONVERTER
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机译:用校准的模拟-数字转换器对模拟信号进行原位诊断和调试的装置和方法
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摘要
An integrated circuit (IC) chip includes an on-chip analog signal monitoring circuit for monitoring a set of analog signals generated by one or more mixed signal cores within the IC chip, converting the analog signals into digital signals, storing the digital signals in an on-chip memory, and providing the digital signals to a test equipment upon request. The analog signal monitoring signal includes an on-chip reference generator for generating precise voltages and/or currents, a switching network for routing a selected reference signal to an analog-to-digital converter (ADC) for calibration purpose and for routing a selected analog signal from one of the mixed signal cores to the ADC for digitizing purposes. The IC chip further includes an on-chip memory for storing the digitized analog signals for subsequent accessing by a test equipment for analysis. The IC chip includes a digital analog test point (ATP) for outputting the digitized analog signals.
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