87.1 Digital Filter Specifications For the normalized specification maximum value of the gain function or the minimum value of the loss function is o dB Maximum passband attenuation n=2090(1+e/dB For &<<1. it can be shown that max -20log0(1-28 dB§7.1 Digital Filter Specifications • For the normalized specification, maximum value of the gain function or the minimum value of the loss function is 0 dB • Maximum passband attenuation 20log (1 2 ) max 10 p α ≅ − − δ dB • For δp<<1, it can be shown that ( ) 2 αmax = 20log10 1+ ε dB