SY89230U 3.2GHz Precision, LVPECL 3, 5 Clock Divider General Description The SY89230U is a precision, low jitter 3.2GHz 3, Precision Edge 5 clock divider with a LVPECL output. The Features differential input includes Micrels unique, 3-pin internal termination architecture that allows the input Accepts a high-speed input and provides a precision to interface to any differential signal (AC- or DC- 3 and 5 sub-rate, LVPECL output coupled) as small as 100mV (200mV ) without any PP Guaranteed AC performance over temperature and level shifting or termination resistor networks in the supply voltage: signal path. The outputs are 800mV, 100K- DC-to >3.2GHz throughput compatible LVPECL with fast rise/fall times < 850ps Propagation Delay (In-to-Q) guaranteed to be less than 200ps. < 200ps Rise/Fall times The SY89230U operates from a 2.5V 5% or 3.3V Ultra-low jitter design: 10% supply and is guaranteed over the full <1ps random jitter RMS industrial temperature range of 40C to +85C. The <1ps cycle-to-cycle jitter RMS SY89230U is part of Micrels high-speed, Precision <10ps total jitter (clock) PP Edge product line. <0.7ps MUX crosstalk induced jitter RMS All support documentation can be found on Micrels Unique patented internal termination and VT pin web site at: www.micrel.com. accepts DC- and AC-coupled inputs (CML, PECL, LVDS) Wide input voltage range V to GND CC Block Diagram 800mV LVPECL output 45% to 55% Duty Cycle ( 3) 47% to 53% Duty Cycle ( 5) 2.5V 5% or 3.3V 10% supply voltage -40C to +85C industrial temperature range Available in 16-pin (3mm x 3mm) QFN package Applications Fail-safe clock protection Markets LAN/WAN Enterprise servers ATE Test and measurement United States Patent No. RE44,134 Precision Edge is a registered trademark of Micrel, Inc. Micrel Inc. 2180 Fortune Drive San Jose, CA 95131 USA tel +1 (408) 944-0800 fax + 1 (408) 474-1000 Micrel, Inc. SY89230U (1) Ordering Information Part Number Package Operating Package Marking Lead Type Range Finish 230U with NiPdAu SY89230UMG QFN-16 Industrial Pb-Free bar-line Indicator Pb-Free 230U with NiPdAu (2) SY89230UMGTR QFN-16 Industrial Pb-Free bar-line Indicator Pb-Free Notes: 1. Contact factory for die availability. Dice are guaranteed at T = 25C, DC Electricals Only. A 2. Tape and Reel. Pin Configuration 16-Pin QFN November 2007 2 M9999-110507-A hbwhelp micrel.com or (408) 955-1690