General Description

The MAX3981 quad equalizer provides compensation for transmission medium losses for four “lanes” of digital NRZ data at a data rate of 3.125Gbps in one package. It is tailor-made for 10Gigabit Ethernet applications that require attenuation of noise and jitter that occur in communicating with chassis-to-chassis inter connect. In support of IEEE-802.3ae for the XAUI interface, the MAX3981 adaptively allows XAUI lanes to reach 10m (33ft) with inexpensive twin-axial cable for extended backplane applications.

Features

♦Four Differential Digital Data “Lanes” at 3.125Gbps

♦Span 10m (33ft) of Twin-Axial Cable

♦Receiver Equalization Reduces Intersymbol Interference (ISI)

♦Low Power, 175mW per Channel

♦Standby Mode—Power-Down State

♦Single 3.3V Supply

♦Signal Detect

Applications

IEEE–802.3ae XAUI Interface (3.125Gbps)

InfiniBand (2.5Gbps)