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SY58034UMITR Datasheet(PDF) 1 Page - Micrel Semiconductor |
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SY58034UMITR Datasheet(HTML) 1 Page - Micrel Semiconductor |
1 / 11 page 1 Precision Edge® SY58034U 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 > 6GHz • <290ps IN-to-OUT tpd • <60ps tr /tf times • <20ps skew (output-to-output) ■ Unique input isolation design minimizes crosstalk ■ 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) ■ Internal 50Ω output source termination ■ 400mV CML output swing ■ –40°C to +85°C temperature range ■ Available in 32-pin (5mm ××××× 5mm) MLF® package FEATURES 6GHz, 1:6 CML FANOUT BUFFER WITH 2:1 MUX INPUT AND INTERNAL I/O TERMINATION Precision Edge® SY58034U APPLICATIONS ■ Redundant clock distribution ■ All SONET/SDH clock distribution ■ All Fibre Channel distribution ■ All Gigabit Ethernet clock distribution The SY58034U is a 2.5V/3.3V precision, high-speed 1:6 fanout buffer capable of handling clocks up to 6GHz. 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 50Ω source terminated CML, with extremely fast rise/fall times guaranteed to be less than 60ps. The SY58034U 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 LVPECL outputs, consider the SY58035U or SY58036U Multiplexers. The SY58034U 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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