Analysis and design of M-channel frequency-interleaved ADC with analog filter estimation

作者：Liu, Tao^*; Tian, Shulin; Wang, Zhigang; Guo, Lianping

来源：Analog Integrated Circuits and Signal Processing, 2014, 81(1): 173-180.

DOI：10.1007/s10470-014-0381-2

• FIADC
• Analog analysis filter
• Digital synthesis filter
• Frequency response estimation

Compared to time-interleaved ADC system, the performance of frequency-interleaved ADC (FIADC) system is extremely sensitive to the parameter uncertainties of the analog analysis filters. In this paper, a new method is launched to estimate the amplitude and phase responses of the analog analysis filters, which will help us grasp the actual filter status in real applications. Then, two algorithms are presented to obtain the digital synthesis filters aiming at minimize the reconstruction error. Design example and verification results show that the analysis filters can be estimated effectively and the designed synthesis filters meet the need of the FIADC system.

• 出版日期2014-10
• 单位电子科技大学