SY89852U Datasheet | Micrel Semiconductor

Precision Low Power Differential 2:1 LVPECL MUX with Internal Termination General Description The SY89852U is a 2.5V/3.3V precision, highspeed, 2:1 differential MUX capable of handling clocks up to 2.5GHz and data streams up to 2.5Gbps. The differential input includes Micrel’s unique, patent pending 3-pin input termination architecture that allows users to interface 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 unique, patent input isolation design minimizes crosstalk minimizing crosstalk induced jitter. The outputs are 800m V LVPECL, with extremely fast rise/fall time guaranteed to be less than 180ps. The SY89852U operates from a 2.5V ±5% supply or a 3.3V ±10% supply and is guaranteed over the full industrial temperature range of - 40°C to +85°C. The SY89852U is part of Micrel’s high-speed, Precision Edge® product line. All support documentation can be found on Micrel’s web site at: .micrel.. Typical Applications Precision Edge is a registered trademark of Micrel, Inc. October 2008 Features Precision Edge® - Provides a low jitter copy of the selected input - Superior alternative to the EP58 2:1 MUX - Low power: 58m W (2.5V nominal, no load) - Guaranteed AC performance over temperature and supply voltage: - DC- to > 2.5Gbps data rate throughput - DC- to > 2.5GHz clock f MAX - < 340ps In-to-Out tpd - < 180ps tr/tf time - Ultra-low Jitter Design: - <1ps(rms) random jitter - <10ps(pp) deterministic jitter - <10ps(pp) total jitter (clock) - <0.7ps(rms) crosstalk induced jitter - Unique, patent-pending input isolation design minimizes crosstalk - Unique, patent pending input termination and VT pin accepts DC-coupled and AC-coupled inputs (CML, PECL, LVDS) - Typical 800m V (100k) LVPECL output swing - Power supply 2.5V +5% or 3.3V +10% - Industrial temperature range - 40o C to +85o C - Available in ultra-small (3mm x 3mm) 16-pin QFN package Applicat...