An 11.1Gbps analog PRML receiver for EDC of up to 400km-reach WDM fiber-optic links

A dispersion tolerant receiver for fiber-optic links, in 0.18µm SiGe BiCMOS, implements a Class-2 Partial Response Maximum Likelihood (PRML) equalization entirely in the analog domain. Post-FEC error free operation is achieved with data received from over 400km of uncompensated single mode fiber (SMF). The receiver complies with XFI Jitter specifications for Telecom (SONET OC-192 and G.709 “OTU-2”).