The PEF31001VSV12 is a Telecom Interface ICs DATA COMM device manufactured by MaxLinear. It is an integrated communications interface that supports a variety of digital and analog communications protocols, including Gigabit Ethernet, VDSL, ADSL, and ISDN. The device includes a host of features including PKA security, full duplex communications, and DSP-based echo cancellation. It also has an adjustable line driver gain to support multiple access customer premises equipment. In addition, the PEF31001VSV12 has an integrated power and jitter control circuit to minimize line output distortion and optimize performance.