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