FEATURES

Dual 2:1 mux/1:2 demux Optimized for dc to 6.5 Gbps NRZ data

Per-lane P/N pair inversion for routing ease Programmable input equalization

Compensates up to 40 inches of FR4

Loss-of-signal detection

Programmable output preemphasis up to 12 dB

Programmable output levels with squelch and disable Accepts ac-coupled or dc-coupled differential CML inputs 50 Ω on-chip termination

1:2 demux supports unicast or bicast operation Port-level loopback

Port or single lane switching

1.8 V to 3.3 V flexible core supply

User-settable I/O supply from VCC to 1.2 V

Low power, typically 2.0 W in basic configuration

64-lead LFCSP −40°C to +85°C operating temperature range

APPLICATIONS

Low cost redundancy switch

SONET OC48/SDH16 and lower data rates RXAUI, 4× Fibre Channel, Infiniband, and GbE over

backplane

OIF CEI 6.25 Gbps over backplane

Serial data-level shift 2-/4-/6-lane equalizers or redrivers