Sen - good job, however mentioning characteristic impedance is also useful. For low-frequency analog signals, impedance is important, because is represents AC resistance. For high-frequency signals, a phenomenon know as characteristic impedance comes into play. It is defined as SQRT(L/C). Characterisitic impedance is a single number that represents the resistance and matching property of a transmission-line to a system, including a terminator, connectors, line drivers and cables. If such a system is matched impedance, no high-frequency reflections will occur anywhere in the system.
Impendance - Resistance & the story of "Z"
Can someone please help a non-engineer understand the difference between the two with regard to cable deisgn. (Aren't they the same? Is it me or is the use of both terms somewhat confusing?)
Reading a certain manufactures literature, it states that lower "Z" in a cable is always better. Is this really true and can someone explain why? They have an interesting graph showing their cable with a "Z" below 1.0 and all other cables tested with "Z" above 1.0
Just looking to understand. Thanks.
Reading a certain manufactures literature, it states that lower "Z" in a cable is always better. Is this really true and can someone explain why? They have an interesting graph showing their cable with a "Z" below 1.0 and all other cables tested with "Z" above 1.0
Just looking to understand. Thanks.