SY58037UMY

Precision Edge ULTRA PRECISION 8:1 MUX Micrel, IIIIInc. SY58037U Precision Edge WITH INTERNAL TERMINATION SY58037U AND 1:2 CML FANOUT BUFFER FEATURES Selects between 1 of 8 inputs, and provides two precision, low skew CML output copies Precision Edge Guaranteed AC performance over temperature and DESCRIPTION voltage: DC to 5Gbps throughput The SY58037U is a low jitter, low skew, high-speed 8:1 <450ps propagation delay IN-to-Q (V 300mV) IN multiplexer with a 1:2 differential fanout buffer optimized for <70ps t / t time r f precision telecom and enterprise server distribution <15ps skew (output-to-output) applications. The SY58037U distributes clock frequencies Unique, patent-pending, channel-to-channel from DC to 4GHz and data rates to 5Gpbs guaranteed over isolation design provides superior crosstalk temperature and voltage. performance The SY58037U differential input includes Micrels unique, Ultra-low jitter design: 3-pin input termination architecture that directly interfaces <1ps random jitter RMS to any differential signal (AC- or DC-coupled) as small as <10ps deterministic jitter PP 100mV (200mVpp) without any level shifting or termination <10ps total jitter (clock) PP resistor networks in the signal path. The outputs are 50 <0.7ps crosstalk-induced jitter RMS source-terminated CML with extremely fast rise/fall time Unique, patent-pending, input termination and VT guaranteed to be less than 70ps. pin accepts DC- and AC-coupled inputs (CML, PECL, The SY58037U features a patent-pending isolation design LVDS) that significantly improves channel-to-channel crosstalk 400mV CML output swing performance. 50 source terminated outputs minimize round-trip The SY58037U operates from a 2.5V 5% or 3.3V 10% reflections supply and is guaranteed over the full industrial temperature range of 40C to +85C. The SY58037U is part of Micrels Power supply 2.5V 5% or 3.3V 10% high-speed, Precision Edge product line. 40 C to +85C temperature range Datasheets and support documentation can be found on Available in 44-pin (7mm x 7mm) QFN package 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 registered trademark of Micrel, Inc. Rev.: E Amendment: /0 M9999-010708 Issue Date: January 2008 1 hbwhelp micrel.com or (408) 955-1690 Precision Edge Micrel, Inc. SY58037U 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-AC1 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-AC2 S2 IN5 S1 50 S0 V T5 50 /IN5 IN6 50 V T6 50 /IN6 V REF-AC3 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 M9999-010707 2 hbwhelp micrel.com or (408) 955-1690