SY89540UMG

SY89540U Precision Low Jitter 4x4 LVDS Crosspoint Switch with Internal Termination General Description The SY89540U is a low-jitter, low skew, high-speed 4x4 crosspoint switch optimized for precision telecom and enterprise server/storage distribution applications. The SY89540U guarantees data-rates up to 3.2Gbps over temperature and voltage. The SY89540U differential input includes Micrel’s unique, 3-pin input termination architecture that directly interfaces to any differential signal (AC or DC-coupled) as small as 100mV (200mVpp) without any level shifting or termination resistor networks in the signal path. The LVDS compatible outputs maintain extremely fast rise/fall times guaranteed to be less than 120ps. The SY89540U features a patent-pending isolation design that significantly improves on channel-tochannel crosstalk performance. The SY89540U operates from a 2.5V ±5% supply and is guaranteed over the full industrial temperature range (–40°C to +85°C). The SY89540U is part of Micrel’s high-speed, Precision Edge® product line. All support documentation can be found on Micrel’s web site at www.micrel.com. Typical Performance Precision Edge® Features • Provides crosspoint switching between any input pairs to any output pair • Patent pending, channel-to-channel isolation design provides superior crosstalk performance • Guaranteed AC performance over temperature and voltage: • DC-to-3.2Gbps throughput –