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SY58040U Dataheets PDF



Part Number SY58040U
Manufacturers Micrel Semiconductor
Logo Micrel Semiconductor
Description ULTRA PRECISION 4x4 CML SWITCH
Datasheet SY58040U DatasheetSY58040U Datasheet (PDF)

Micrel, Inc. ULTRA PRECISION 4×4 CML SWITCH WITH INTERNAL I/O TERMINATION Precision ESdY5g8e0®40U SY58040U FEATURES ■ Provides crosspoint switching between any input pair to any output pair ■ Ultra-low jitter design: • 67fsRMS phase jitter (typ) ■ Guaranteed AC performance over temperature and voltage: • DC to >5Gbps throughput • <350ps propagation delay • <60ps tr / tf times • <25ps skew (output-to-output) ■ Unique, patent-pending, channel-to-channel isolation design provides superior crosst.

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Micrel, Inc. ULTRA PRECISION 4×4 CML SWITCH WITH INTERNAL I/O TERMINATION Precision ESdY5g8e0®40U SY58040U FEATURES ■ Provides crosspoint switching between any input pair to any output pair ■ Ultra-low jitter design: • 67fsRMS phase jitter (typ) ■ Guaranteed AC performance over temperature and voltage: • DC to >5Gbps throughput • <350ps propagation delay • <60ps tr / tf times • <25ps skew (output-to-output) ■ Unique, patent-pending, channel-to-channel isolation design provides superior crosstalk performance ■ Unique, patent-pending, 50Ω input termination extended CMVR, and VT pin accepts DC- and ACcoupled differential inputs ■ 400mV CML output swing ■ 50Ω source terminated outputs minimize round-trip reflections ■ Power supply 2.5V ±5% or 3.3V ±10% ■ –40°C to +85°C temperature range ■ Available in 44-pin (7mm × 7mm) QFN package ■ Pb-Free green package Precision Edge® DESCRIPTION The SY58040U is a low jitter, low skew, high-speed 4×4 crosspoint switch optimized for precision telecom and enterprise server/storage distribution applications. The SY58040U distributes clock frequencies from DC to 4GHz, and data rates to 5Gbps guaranteed over temperature and voltage. The SY58040U 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 outputs are 50Ω source-terminated CML with extremely fast rise/fall times guaranteed to be less than 60ps. The SY58040U features a patent-pending isolation design that significantly improves on channel-to-channel crosstalk performance. The SY58040U operates from a 2.5V ±5% or 3.3V ±10% supply and is guaranteed over the full industrial temperature range of –40°C to +85°C. The SY58040U is part of Micrel’s high-speed, Precision Edge® product line. Datasheets and support documentation can be found on Micrel’s web site at: www.micrel.com. APPLICATIONS ■ Data communication systems ■ All SONET/SDH data/clock applications ■ All Fibre Channel applications ■ All Gigabit Ethernet applications United States Patent No. RE44,134 Precision Edge is a registered trademark of Micrel, Inc. M9999-103009 [email protected] or (408) 955-1690 1 Rev.: F Amendment: /0 Issue Date: October 2011 Micrel, Inc. Functional block diagram SY58040U TRUTH TABLES Input Select Address Table SIN1 SIN0 INPUT 0 0 IN0 0 1 IN1 1 0 IN2 1 1 IN3 Output Select Address Table SOUT1 SOUT0 OUTPUT 0 0 Q0 0 1 Q1 1 0 Q2 1 1 Q3 M9999-103009 [email protected] or (408) 955-1690 2 Micrel, Inc. SY58040U PACKAGE/ORDERING INFORMATION Ordering Information(1) Part Number Package Operating Type Range Package Marking SY58040UMY(3) QFN-44 Industrial SY58040U Pb-Free Pb-Free bar-line indicator SY58040UMYTR(2, 3) QFN-44 Industrial SY58040U Pb-Free Pb-Free .


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