Patent ID: 7848367

Claim:
A deserializer comprising: an input receiver circuit for receiving an input data signal and for adjusting said input data signal, said input receiver circuit comprising: a threshold adjust block for receiving said input data signal and a threshold adjust signal; a limiting amplifier coupled to said threshold adjust block, said limiting amplifier for receiving an output of said threshold adjust block and amplifying said output of said threshold adjust block; an offset sense block coupled to said threshold adjust block and said limiting amplifier, said offset sense block for receiving said threshold adjust signal and an output of said limiting amplifier and for feeding an output of said offset sense block to said threshold adjust block, wherein said threshold adjust block, said limiting amplifier and said offset sense block form a feedback control loop; a peak detector coupled to said offset sense block, said peak detector for detecting a peak-to-peak signal of said output of said limiting amplifier; and a loss-of-signal detector coupled to said peak detector, said loss-of-signal detector for comparing an output of said peak detector with a threshold signal; a clock and data recovery circuit (CDR) coupled to said input receiver circuit, said CDR for recovering clock and data signals; a demultiplexing circuit coupled to said CDR, said demultiplexing circuit for receiving one or more data channels from said CDR and splitting said one or more data channels into a first set of data channels; a serdes framer interface (SFI) circuit coupled to said demultiplexing circuit, said SFI circuit for generating a reference channel, for generating a second set of data channels based on said first set of data channels, and for sending said second set of data channels and said reference channel to a framer, wherein said one or more data channels have less number of channels than said first set of data channels, wherein a data rate of said one or more data channels is higher than a data rate of said first set of data channels.