Holistic Biquadratic IIR Filter Design for Communication Systems Using Differential Evolution

Table 2

Chip area for an IIR filter (order 6, cascade of three biquadratic filter stages) with programmable coefficients.

Fractional bits (bit)	Area fixed-point (𝜇m^2)	Area floating-point (𝜇m^2)
7	112370	244905
8	125379	279039
9	154582	309891
10	169388	339441
11	202143	388644
12	218251	406734
13	256645	458154
15	313606	533592
19	430632	705147