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MULTIPLIER-FREE ALGORITHMS FOR SAMPLE-TIME AND GAIN MISMATCH ERROR ESTIMATION IN A TWO-CHANNEL TIME-INTERLEAVED ANALOG-TO-DIGITAL CONVERTER
MULTIPLIER-FREE ALGORITHMS FOR SAMPLE-TIME AND GAIN MISMATCH ERROR ESTIMATION IN A TWO-CHANNEL TIME-INTERLEAVED ANALOG-TO-DIGITAL CONVERTER
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机译:两通道时间交错模拟-数字转换器中采样时间和增益不匹配误差估计的无乘数算法
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摘要
Techniques for the estimation of sample-time and gain mismatch errors in a two-channel time interleaved analog to digital converter that are devoid of any multiplication operation. In a sample-time mismatch error evaluation, the signs and the absolute values from the two ADCs are used to provide an estimate of the sample-time mismatch error. In a gain error estimation algorithm, the absolute values of the outputs from the two ADCs are subtracted and accumulated. The errors can then be corrected, in a preferred embodiment, using suitable adaptive sample time and gain correction techniques.
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