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Alpha S/PDIF cables feature Ohno Continuous Cast conductors, expensive fluorocarbon dielectrics & Precision Matched Z for a true reference quality digital cable. KPIP™ eliminates burn-in issues. Please call us for custom lengths.
High-speed digital transmission is very different from audio frequency signal transmission and requires a different knowledge base and design criteria. Audio cable signal transmission is governed by the principles of inductance, capacitance, and resistance. By contrast, high-speed digital signals are governed by a principle known as ‘transmission line theory’.
The performance of a transmission line is governed by the characteristic impedance of the cable. Certain types of cable require a specific characteristic impedance to achieve optimal performance — for instance, cable TV coaxial cables are 75 ohms, while test equipment cables require 50 ohm cables. Modern audio and entertainment systems may have multiple digital connections, each with potentially different characteristic impedances.
While the characteristic impedance is a critical factor in the optimal performance of digital cables, our research also indicates that the precision with which a digital cable is constructed has a significant impact on its performance.
Shunyata Research digital cables are produced using a Precision Matched Z concept. This dictates that tolerances of the conductor surface, dielectric extrusion, and the precision of the braided shield are held to smaller variances. To achieve these tight tolerances, the extrusion and braiding machines must be run at one-quarter speed during the manufacturing process. The result is better performance through a reduction of cable-induced ‘signal jitter’.
ΞTRON® is a technology developed by Shunyata Research that prevents dielectric absorption and re-radiation in signal transmission. It requires a special type of conductor that has two signal paths and an electric field compensation circuit that creates a cancellation signal that prevents the insulation from developing a charge. ΞTRON® cables preserve the integrity of the source signal even when using very long runs of cable.
Patent US 8,912,436, Patent Ch ZL201180047344.2.
Cable: 75 ohm coaxial PMZ, FEP dielectric, silver-plated braided shielding
Termination: True 75-ohm RCA and BNC compression connectors
Characteristic Impedance: 75-ohm
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