Almost a Brickwall Filter. The ATBW is a good compromise for sharpness, ringing, insertion loss and cost. The ATBW stopband ratio of 1.08 is close to the ABW series Brickwall ratio of 1.066 but has less ringing, Delay distortion and insertion loss.
Passband Flatness: Ripple Less than +/?.1dB
Insertion Loss at 100KHz =4dB
Impedance = 75 Ohms unbalanced
Return Loss = -20dB typical
Group Delay Ripple less than +/- 1.25% of midband delay
Stopband Attenuation = 45dB Min
Stopband Ratio = 1.08 at -45dB
Temperature Range - Operating 0 to +50 Degrees Celsius
