The SDFE devices of the SOCRATES™ single-chip SHDSL transceivers family offers 1, 2 and 4 port connectivity, and are fully compliant to ITU and ETSI SHDSL standards. With one PCM system interface for each SHDSL port the SDFE family members targets mainly TDM applications and offer best-in-class performance and lowest power consumption. The unique features, and high-integration levels of the SDFE family members, have helped Lantiq secure the Number 1 position in the SHDSL IC market.