The SY89474U is a 2.5V precision, high-speed 2:1 differential MUX capable of processing clocks up to 2.5GHz and data up to 2.5Gbps. The 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 output is 325mV LVDS with fast rise/fall times guaranteed to be less than 150ps. The SY89474U operates from a 2.5V ±5% supply and is guaranteed over the full industrial temperature range of -40°C to +85°C. The SY89474U is part of Micrel’s highspeed, Precision Edge® product line.
Selects between two input channels and provides two copies of the selected input Guaranteed AC performance over temperature and supply voltage: DC to 2.5Gbps data throughput DC to 2.5GHz fMAX (clock) <150ps tr/tf <20ps output-to-output skew Unique, patent-pending input isolation design minimizes crosstalk Ultra-low jitter design: <1psRMS random jitter <10psPP deterministic jitter <1psRMS cycle-to-cycle jitter <10psPP total jitter (clock) <0.7psRMS crosstalk induced jitter Unique patent-pending input termination and VT pin accepts DC- and AC-coupled inputs (CML, PECL, LVDS) 325mV LVDS output swing 2.5V ±5% supply voltage -40°C to +85°C industrial temperature range Available in 24-pin (4mm x 4mm) QFN package