SY89851U Datasheet | Micrel Semiconductor

.. Low Power, 3GHz, 1:2 LVPECL Fanout Buffer/Translator with Internal Termination General Description The SY89851U is a low jitter, low skew, high-speed 1:2 differential fanout buffer optimized for precision tele and enterprise server distribution applications. The SY89851U distributes clock frequencies from DC to >3GHz, and data rates to 2.5Gbps guaranteed over temperature and voltage. The SY89851U 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 100m V (200m Vpp) without any level shifting or termination resistor networks in the signal path. The outputs are 800m V, 100Kpatible LVPECL with extremely fast rise/fall time guaranteed to be less than 180ps. The SY89851U operates from a 2.5V ±5% or 3.3V ±10% supply and is guaranteed over the full industrial temperature range of - 40°C to +85°C. The SY89851U is part of Micrel's high-speed, Precision Edge® product line. All support documentation can be found on Micrel's web site at .micrel.. Precision Edge® Features - Precision 1:2, 800m V LVPECL fanout buffer - Low power consumption: 80m W typ. (2.5V) - Guaranteed AC performance over temperature and voltage: - DC to >3GHz clock throughput - <340ps propagation delay - <180ps rise/fall time - <20ps output-to-output skew - Ultra-low jitter design: - <1ps RMS random jitter - <10ps PP deterministic jitter - <10ps PP total jitter (clock) - Unique, patented input termination and VT pin accepts DC- and AC-coupled inputs (CML, LVPECL, LVDS) - 100K LVPECL-patible outputs - Power supply 2.5V ±5% or 3.3V ±10% - - 40°C to +85°C industrial temperature range - Available in 16-pin (3mm x 3mm) MLF™ package Functional Block Diagram Applications - - - - All SONET and Gig E clock distribution Fibre Channel applications Backplane distribution High-end, low skew, multiprocessor synchronous clock distribution Precision Edge is a registered...