Abstract: A multi-rate transponder system has a receiving part, a system controller and a transmitting part. The receiving part includes a data transfer circuit, a clock transfer circuit, and a reference clock circuit. The receiving part receives the incoming serial data stream and derives a clock signal and a data signal. The data transfer circuit generates an incoming data signal based on the derived data signal. The clock transfer circuit generates a receiver clock signal. The reference clock circuit generates a reference clock signal for the transmitting part based on the derived clock signal. The system controller includes system data receiving and transferring means, and system data processing means. The system data receiving means receives the incoming data signal and the receiver clock signal and provides the incoming data signal for clock domain transfer. The system data processing means processes the incoming data signal to generate an outgoing data signal to the system data transfer means.

Abstract: An integrated circuit for receiving and recovering an incoming electrical signal of a digital data bit stream transmitted over a communication channel, and comprising an equaliser circuit adapted to reshape the electrical signal to be provided to, a CDR circuit adapted to receive the reshaped electrical signal and to recover data bit signal of the digital bit stream and to recover a clock signal encoded or embedded in the digital data stream.