Stability Analysis of the High-order Oversamphng Mo- dulation System
Luo Lijun et al.
A linearization system model described by the root-mean square gain G that can be used to analyze the stability of the nonlinear high-order oversampling △∑ modulation system and to direct the design of this system is presented. The analysis indicates that the stability depends on system parameters (such as integrator gain or delay) and system dynamic characters (such as input signal, integrator initial conditions). Integrator gain and integrator initial conditions should be properly selected during the process of its design so as to make the system stable.