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SY58035UMG Datasheet(PDF) 1 Page - Micrel Semiconductor |
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SY58035UMG Datasheet(HTML) 1 Page - Micrel Semiconductor |
1 / 11 page 1 Precision Edge® SY58035U Micrel, Inc. M9999-020707 hbwhelp@micrel.com or (408) 955-1690 DESCRIPTION ■ Provides six ultra-low skew copies of the selected input ■ 2:1 MUX input included for clock switchover applications ■ Guaranteed AC performance over temperature and voltage: •Clock frequency range: DC to > 4.5GHz • <320ps IN-to-OUT tpd • <110ps tr /tf times • <20ps skew (output-to-output) ■ Ultra-low jitter design: • <1psRMS random jitter • <10psPP total jitter (clock) • <1psRMS cycle-to-cycle jitter • <0.7psRMS crosstalk-induced jitter ■ Low supply voltage operation: 2.5V and 3.3V ■ Unique input termination and VT pin accepts DC- coupled and AC-coupled inputs (CML, PECL, LVDS) ■ Unique input isolation design minimizes crosstalk ■ 100K LVPECL compatible output swing ■ –40°C to +85°C temperature range ■ Available in 32-pin (5mm × × × × × 5mm) MLF® package FEATURES 4.5GHz, 1:6 LVPECL FANOUT BUFFER WITH 2:1 MUX INPUT AND INTERNAL TERMINATION Precision Edge® SY58035U APPLICATIONS ■ Redundant clock distribution ■ All SONET/SDH clock/data distribution ■ All Fibre Channel distribution ■ All Gigabit Ethernet clock distribution The SY58035U is a 2.5V/3.3V precision, high-speed, 1:6 fanout capable of handling clocks up to 4.5GHz. A differential 2:1 MUX input is included for redundant clock switchover applications. The differential input includes Micrel’s unique, 3-pin input termination architecture that allows the device 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. The outputs are LVPECL (100K, temperature compensated), with extremely fast rise/fall times guaranteed to be less than 110ps. The SY58035U operates from a 2.5V ±5% supply or a 3.3V ±10% supply and is guaranteed over the full industrial temperature range of –40°C to +85°C. For applications that require CML outputs, consider the SY58034U or for 400mV LVPECL outputs the SY58036U. The SY58035U is part of Micrel’s high-speed, Precision Edge® product line. All support documentation can be found on Micrel’s web site at www.micrel.com. FUNCTIONAL BLOCK DIAGRAM Precision Edge is a registered trademark of Micrel, Inc. MicroLeadFrame and MLF are registered trademarks of Amkor Technology, Inc. Precision Edge® Q0 /Q0 Q1 /Q1 Q2 /Q2 Q3 /Q3 Q4 /Q4 Q5 /Q5 IN0 /IN0 VT0 50Ω 50Ω IN1 /IN1 VT1 50Ω 50Ω 0 1 Mux SEL (TTL/CMOS) S VREF-AC0 VREF-AC1 2:1 Mux 1:6 Fanout Rev.: D Amendment: /0 Issue Date: February 2007 |
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