Abstract: When testing for bit error ratio (BER), how many bits do you need to transmit through a system in order achieve reasonable confidence in the results? This article provides the answer. It starts with the theory of statistical confidence levels and then shows how to apply the theory to the BER measurement problem. It finishes up with clear examples and step-by-step instructions for setting up the appropriate tests. The application note you have requested is available in Acrobat PDF format: APPLICATION NOTE 1095: HFTA-05.0: Statistical Confidence Levels for Estimating BER Probability (PDF, 56kB) A free Acrobat PDF reader is available from: http://www.adobe.com/products/acrobat/readstep.html We Want Your Feedback! Automatic Updates Would you like to be automatically notified when new application notes are published in your areas of interest? Sign up for EE-Mail™. More Information   APP 1095: Dec 17, 2001 MAX3875 2.5Gbps, Low-Power, +3.3V Clock Recovery and Data Retiming IC Full Data Sheet (PDF, 456kB) MAX3876 2.5Gbps, Low-Power, +3.3V Clock-Recovery and Data-Retiming IC Full Data Sheet (PDF, 952kB) MAX3877 2.5Gbps, +3.3V Clock and Data Retiming ICs with Vertical Threshold Adjust Full Data Sheet (PDF, 556kB) MAX3878 2.5Gbps, +3.3V Clock and Data Retiming ICs with Vertical Threshold Adjust Full Data Sheet (PDF, 556kB)   Download, PDF Format (56kB)  AN1095, AN 1095, APP1095, Appnote1095, Appnote 1095