Time-Division Multiplexing Architecture for Hybrid Filter Bank A/D converters

Davud Asemani (1) , Jacques Oksman (1)

1 SUPELEC-Campus Gif

In this paper, a new Hybrid Filter Bank (HFB) architecture called Time-Division Multiplexing (TDM) is proposed for HFB-based A/D Converters (ADC). The TDM HFB architecture is firstly extracted considering the TDM components of analog input as new input vector. The TDM HFB-based ADC is then simulated using simply-realizable analysis filters to approve the mathematical formulation of the TDM model. At last, the output resolutions of TDM and classical HFB-based ADC are compared considering practical analog filters including realization errors. It is shown that the TDM architecture is less sensitive to the realization errors than the classical HFB. Besides, the TDM HFB can exploit a blind technique to correct the realization errors in opposite to the classical HFB case.

Domains: Engineering Sciences [physics]; Electronics; Engineering Sciences [physics]; Signal and Image processing; Computer Science [cs]; Signal and Image Processing

Davud Asemani, Jacques Oksman. Time-Division Multiplexing Architecture for Hybrid Filter Bank A/D converters. 50th IEEE Midwest Symposium on Circuits and Systems, Aug 2007, Montréal, Canada. pp.405-408. ⟨hal-00261832⟩