Stability Condition in Terms of the pole locations On the other hand, an IiR filter may be unstable if not designed properly In addition an originally stable iir filter characterized by infinite precision coefficients may become unstable when coefficients get quantized due to implementation Copyright C 2001, S K. MitraCopyright © 2001, S. K. Mitra 4 Stability Condition in Terms of the Pole Locations • On the other hand, an IIR filter may be unstable if not designed properly • In addition, an originally stable IIR filter characterized by infinite precision coefficients may become unstable when coefficients get quantized due to implementation