GENERAL DESCRIPTION
The AD8159 is an asynchronous, protocol agnostic, quad-lane 2:1 switch with a total of 12 differential PECL/CML-compatible inputs and 12 differential CML outputs. The operation of this product is optimized for NRZ signaling with data rates up to 3.2 Gbps per lane. Each lane offers two levels of input equalization and four levels of output pre-emphasis.

FEATURES
    Port level 2:1 mux/1:2 demux
    Each port consists of 4 lanes
    Each lane runs from dc to 3.2 Gbps, independent of the other lanes
    Compensates over 40 inches of FR4 at 3.2 Gbps through two levels of input equalization, or four levels of output pre-emphasis
    Accepts ac- or dc-coupled differential CML inputs
    Low deterministic jitter, typically 20 ps p-p
    Low random jitter, typically 1 ps rms
    BER < 10-16
    On-chip termination
    Reversible inputs and outputs on one port
    Unicast or bicast on 1:2 demux function
    Port level loopback capability
    Single lane switching capability
    3.3 V core supply
    Flexible I/O supply down to 2.5 V
    Low power, typically 1 W in basic configuration
    100-pin TQFP_EP
    −40°C to +85°C operating temperature range

APPLICATIONS
    Low cost redundancy switch
    SONET OC48/SDH16 and lower data rates
    XAUI (10 Gigabit Ethernet) over backplane
    Gigabit Ethernet over backplane
    Fibre channel 1.06 Gbps and 2.125 Gbps over backplane
    Infiniband over backplane
    PCI-Express over backplane