- Forget the "pi" forums' option for now. Reversing the order of the buildout resistor to the conjugate ( parallel ) will only confuse you at this stage . The 20 ohm resistor that is already across the driver provides quite a lot of broadband damping .Originally Posted by Mark
- The existing fixed Lpad provides around 4.5 db of attenuation .You can make up a fixed Lpad ( with slightly more than 10 db of loss ) by using a 2.5 ohm parallel resistor , preceeded by a 4 ohm buildout resistor . ( 4.1 or 4.2 ohm buildouts ) would be better if you can conjure them up .
- In case you haven't realized it yet, the working load impedance of your network that your CLC passives look into, is somewhere in the area of the low 6s' ( 6.25 to 6.5 ohms ). Zilch is working on that answer right now .
- It's not 16 ohms .
- The inline fixed Lpad drops the working circuit impedance