Agilent 5988-9826EN High Precision Time Domain Reflectometry - Application Note c20141125 [19] free download

File name 5988-9826EN High Precision Time Domain Reflectometry - Application Note c20141125 [19].pdf

Keysight Technologies High Precision Time Domain Reflectometry (TDR) Application Note Introduction High performance communications systems require a quality Techniques for achieving the transmission path for electrical signals. For efficient signal flow highest possible accuracy and high signal integrity, the transmission path impedance should and resolution in signal be kept as close to a constant, ideal value as possible. Time integrity impedance Domain Reflectometry (TDR) is a well-established technique for measurements verifying the impedance and quality of signal paths in components, interconnects, and transmission lines. As data rates increase and component geometries decrease, the precision and resolution of the basic TDR measurement system can be strained. This application note will review measurement system limitations and the sources of measurement errors. Practical techniques and useful methods to enhance precision will be reviewed. Specific topics include: