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How to Characterize PAM-4 Transmitters

This video will illustrate how to characterize PAM-4 signals described in standards such as IEEE 802.3bs (200G/400G Ethernet) and the Optical Internetworking Forum-Common Electrical Interfaceâ??56G implementation agreement (CEI-56G-XX-PAM4), using the Keysight N109X DCA-M Series of Oscilloscopes.

PAM = Pulse Amplitude Modulation
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