Description:
This filter uses a proprietary, absorptive filter design that has attenuation and group delay frequency responses similar to those of the 4th order Bessel-Thomson filter. Traditional Bessel-Thomson designs filter by reflecting stop-band frequency signals and thus can cause increased bit error rates and eye diagram closure due to multiple reflections. By contrast, the PSPL filters filter by absorption. They have excellent impedance matches and very good return losses, both within and above the filter pass band.
Model 5935 custom filters are available with 2.92, 2,4 or 1.85 mm connectors. Contact PSPL directly for information on ordering custom filter values.
The characteristics of this quasi-Gaussian filter are described in AN-7a, “Low-Pass Risetime Filters for Time Domain Applications”.
