Precision Edge ULTRA PRECISION 8:1 MUX WITH SY58039U Micrel Precision Edge INTERNAL TERMINATION AND 1:2 SY58039U 400mV LVPECL FANOUT BUFFER FEATURES - Selects between 1 of 8 inputs, and provides 2 precision, low skew LVPECL output copies Precision Edge - Ultra-low jitter design: DESCRIPTION 80fs phase jitter (typ) rms - Guaranteed AC performance over temperature and The SY58039U is a low jitter, low skew, high-speed 8:1 voltage: multiplexer with a 1:2 differential fanout buffer optimized for DC to 5Gbps throughput precision telecom and enterprise server distribution <490ps propagation delay IN-to-Q (V > 100mV) IN applications. The SY58039U distributes clock frequencies <85ps t /t time r f from DC to 4GHz, and data rates to 5Gpbs guaranteed <15ps skew (output-to-output) over temperature and voltage. - Unique, patent-pending, channel-to-channel isolation The SY58039U differential input includes Micrels unique, design provides superior crosstalk performance 3-pin input termination architecture that directly interfaces - Unique, patent-pending, input termination and VT pin to any differential signal (AC- or DC-coupled) as small as accepts DC- and AC-coupled inputs (CML, PECL, 100mV without any level shifting or termination resistor LVDS) networks in the signal path. The outputs are 400mV, 100K- compatible LVPECL with extremely fast rise/fall times - 400mV LVPECL output swing guaranteed to be less than 85fs. - Power supply 2.5V 5% or 3.3V 10% The SY58039U features a patent-pending isolation design - 40C to +85C temperature range that significantly improve channel-to-channel crosstalk - Available in 44-pin (7mm 7mm) QFN package performance. The SY58039U operates from a 2.5V 5% or 3.3V 10% supply and is guaranteed over the full industrial temperature range of 40C to +85C. The SY58039U is part of Micrels high-speed, Precision Edge product line. Data sheets and support documentation can be found on Micrels web site at www.micrel.com. APPLICATIONS - Data communication systems - All SONET/SDH data/clock applications - All Fibre Channel applications - All Gigabit Ethernet applications Precision Edge is a trademark of Micrel, Inc. Rev.: B Amendment: /0 M9999-102711 1 Issue Date: October 2011 hbwhelp micrel.com or (408) 955-1690Precision Edge SY58039U Micrel FUNCTIONAL BLOCK DIAGRAM IN0 50 V T0 50 /IN0 V REF-AC0 IN1 50 V T1 50 /IN1 IN2 50 8:1 MUX V T2 50 0 /IN2 V REF-AC2 1 IN3 1:2 Fanout 50 2 V T3 Q0 50 3 /IN3 /Q0 4 MUX IN4 50 5 Q1 V T4 50 6 /Q1 /IN4 V 7 REF-AC3 S2 IN5 S1 50 S0 V T5 50 /IN5 IN6 50 V T6 50 /IN6 V REF-AC4 IN7 50 V T7 50 /IN7 SEL0 (CMOS/TTL) SEL1 (CMOS/TTL) SEL3 (CMOS/TTL) TRUTH TABLE SEL2 SEL1 SEL0 Q /Q L L L IN0 /IN0 L L H IN1 /IN1 L H L IN2 /IN2 L H H IN3 /IN3 H L L IN4 /IN4 H L H IN5 /IN5 H H L IN6 /IN6 H H H IN7 /IN7 M9999-102711 2 hbwhelp micrel.com or (408) 955-1690