Table-based simulation of delta-sigma modulators

The program ZSIM (nonlinear Z-domain simulator) is used to explore the benefits and limitations of a table-based approach to the simulation of delta-sigma modulators with switched-capacitor integrators. Simulations demonstrating the effects of clock feedthrough and incomplete settling are presented,...

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Bibliographic Details
Published in:IEEE transactions on circuits and systems 1990-03, Vol.37 (3), p.447-451
Main Authors: Bishop, R.J., Paulos, J.J., Steer, M.B., Ardalan, S.H.
Format: Article
Language:English
Subjects:
Applied sciences
Circuit properties
Circuit simulation
Circuit stability
Circuits and systems
Clocks
Delta modulation
Electric, optical and optoelectronic circuits
Electronic circuits
Electronics
Exact sciences and technology
Low pass filters
Modulation coding
Pulse modulation
Sampling methods
Signal convertors
Switching circuits
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Summary:The program ZSIM (nonlinear Z-domain simulator) is used to explore the benefits and limitations of a table-based approach to the simulation of delta-sigma modulators with switched-capacitor integrators. Simulations demonstrating the effects of clock feedthrough and incomplete settling are presented, as are simulations demonstrating the importance of using an accurate and charge-conservative circuit simulator for the table point transient simulations. The methods used are appropriate for other discrete-time systems where simulation of system-level performance based on the results of transient circuit simulation is desired.< >
ISSN:0098-4094
1558-1276
DOI:10.1109/31.52741