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