SY58030U

Micrel, Inc. ULTRA PRECISION, 400mV DIFFERENTIAL LVPECL 4:1 MUX with 1:2 Precision Edge® Precision ESdY5g8e0®30U FANOUT and INTERNAL TERMINATION SY58030U FEATURES United States Patent No. RE44,134 ■ Selects 1 of 4 differential inputs ■ Provides two copies of the selected input ■ Guaranteed AC performance over temperature and voltage: DC-to- > 10.7Gbps data rate throughput < 340ps IN-to-Out tpd < 80ps tr / tf times ■ Ultra low-jitter design: < 10psPP total jitter (clock) < 1psRMS random jitter < 10psPP deterministic jitter < 0.7psRMS crosstalk-induced jitter ■ Unique patended input design minimizes crosstalk ■ Accepts an input signal as low as 100mV ■ Unique patended input termination and VT pin accepts DC-coupled and AC-coupled inputs (CML, LVPECL, LVDS) ■ 400mV 100k LVPECL output swing ■ Power supply 2.5V ±5% or 3.3V ±10% ■ –40°C to +85°C temperature range ■ Available in 32-pin (5mm × 5mm) MLF® package APPLICATIONS Precision Edge® DESCRIPTION The SY58030U is a 2.5V/3.3V precision, high-speed, 4:1 differential multiplexer with 400mV LVPECL outputs, capable of handling clocks up to 7GHz and data streams up to 10.7Gbps. In addition, a 1:2 fanout buffer provides two copies of the selected input. The differential input includes Micrel’s unique, 3-pin input termination architecture that allows customers to interface to any differential signal (AC- or DC-coupled) as small as 100mV without any level shifting or termination resistor networks in the signal path. ...