AMI PAM4 Eye Diagrams

PAM4 is a Pulse Amplitude Modulated (PAM) signal with four amplitude levels. An AMI eye report accurately displays the output from such a PAM-4 modulated transmission. A PAM-4 transmission is enabled with PAM-4 reserved parameters. For more information, see AMI Reserved Parameters.

AMI PAM4 Plot

This plot shows the multiple eye diagram generated with Gray coding (00, 01, 11, 10 from lowest-to-highest), using a repeating 0, 1, 2, 3 symbol pattern (00011011).