SY89645L

SY89645L Precision Low Skew, 1-to-4 LVCMOS/LVTTL-to-LVDS Fanout Buffer General Description The SY89645L is a 3.3V, fully differential, low skew, 1:4 LVDS fanout buffer that accepts LVTTL or LVCMOS inputs. It is capable of processing clock signals as fast as 650MHz. The LVDS signals are optimized to provide less than 40ps of output skew. The single-ended input takes a 3.3V LVTTL or LVCMOS, with a signal swing as small as 1.2V. The outputs are 280mV LVDS, with fast rise and fall times, guaranteed to be less than 400ps. The SY89645L operates from a 3.3V + 5% power supply and is guaranteed over the full industrial temperature range (–40°C to +85°C). The SY89645L is part of Micrel’s Precision Edge® product line. Data sheets and support documentation can be found on Micrel’s web site at: www.micrel.com. Block Diagram Precision Edge® Features Four identical LVDS outputs CLKIN accepts LVCMOS or LVTTL input levels Maximum output frequency: 650MHz Translates LVCMOS/LVTTL input signals to LVDS levels <40ps output-to-output skew <3ns propagation delay <400ps rise/fall times 3.3V ±5% operating supply Industrial temperature range: –40°C to +85°C Available in 20-pin TSSOP Applications Communications High-performance computing Clock and data distribution Markets Datacom Telecom Storage ATE Test and Measurement Precision Edge is a registered trademark of Micrel, Inc. Micrel Inc. 2180 Fortune Drive San Jose, CA 95131 USA tel +1 (408) 944-0800 ...