Wireline data transmission and reception

Many types of wires are widely used to transmit data. Specifically, Category 3 and Category 5 (Cat3 and Cat5e, respectively)—also known as unshielded twisted pair or UTP lines—are now recommended for new telephone installations. Coaxial (coax) cables are used to distribute CATV signals throughout a home. #12 and #14 American wire gauge (AWG) electric power distribution wire is also used for powerline communication applications such as Homeplug.

Because of the wide availability and comparatively low cost, these media can also be used for point-to-point communications and data transmission for remote applications. Each of these media types shares a common characteristic: For a given cable length, the high-frequency components of a given signal will be attenuated more than the low-frequency components. This application note describes a possible system architecture for transmitting a signal with high-frequency content, compensating for the frequency-dependent attenuation, and receiving this type of signal for further processing.

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