吉林大学学报(工学版) ›› 2015, Vol. 45 ›› Issue (1): 328-334.doi: 10.13229/j.cnki.jdxbgxb201501048

• Orignal Article • Previous Articles     Next Articles

Spurious free dynamic range of ADC based on analysis of quantization noise spectrum

KANG Rong-zong, TIAN Peng-wu, YU Hong-yi   

  1. Institute of Information Engineering, Information Engineering University, Zhengzhou 450002, China
  • Received:2013-05-10 Online:2015-02-01 Published:2015-02-01

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Abstract: Spurious Free Dynamic Range (SFDR) measurement of Analog to Digital Converter (ADC) is restricted to the specified ADC parameters and matching test methods. In this paper, first, a theoretical analysis of approximate upper bound performance of ideal ADC with different quantization bits is carried out based on spectral analysis of quantization noise. Then, the relationship between the SFDR performance and the SNR of input signal under Additive White Gaussian Noise (AWGN) is illustrated. The effect of sampling on SFDR is also considered that the characteristic of discrete spectrum of ADC output and its influence on SFDR with different sampling rate is investigated. The mathematical deduction results are verified with FFT analysis test method.

CLC Number: 

  • TN911.72
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