The SEPHY Ethernet transceiver is a mixed-signal device developed in Europe and free from restrictions imposed by the International Traffic in Arms Regulations (ITAR).
The physical layer transceiver deals with the transmission and reception of data over the physical medium ensuring reliable communication (see Figure).
Since the PHY interacts directly with the physical signals on the cable it has to contain an analogue front end capable of transmitting and receiving analogue signals.
As the PHY connects to the digital MAC layer, it needs to perform complex digital signal processing and data controlling.
The physical implementation occurs by means of a mixed-signal ASIC. This is a complex semiconductor device that embeds in the same substrate analogue and digital functions.
The device will be 100% compatible with 10/100Base-T Ethernet standard.