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NB3N108K

ON Semiconductor
Part Number NB3N108K
Manufacturer ON Semiconductor
Description 3.3V Differential 1:8 Fanout Clock Data Driver
Published Jul 31, 2015
Detailed Description NB3N108K 3.3V Differential 1:8 Fanout Clock Data Driver with HCSL Outputs Description The NB3N108K is a differential 1:...
Datasheet PDF File NB3N108K PDF File

NB3N108K
NB3N108K

Overview
NB3N108K 3.
3V Differential 1:8 Fanout Clock Data Driver with HCSL Outputs Description The NB3N108K is a differential 1:8 Clock fanout buffer with High−speed Current Steering Logic (HCSL) outputs optimized for ultra low propagation delay variation.
The NB3N108K is designed with HCSL PCI Express clock distribution and FBDIMM applications in mind.
Inputs can directly accept differential LVPECL, LVDS, HCSL signals per Figures 7, 8, and 9.
Single−ended LVPECL, HCSL, LVCMOS, or LVTTL levels are accepted with a proper external Vth reference supply per Figures 4 and 10.
Input pins incorporate separate internal 50 W termination resistors allowing additional single ended system interconnect flexibility.
Output drive current is set by connecting a 475 W resistor from IREF (Pin 1) to GND per Figure 6.
Outputs can also interface to LVDS receivers when terminated per Figure 11.
The NB3N108K specifically guarantees low output–to–output skews.
Optimal design, layout, and processing minimize skew within a device and from device to device.
System designers can take advantage of the NB3N108K’s performance to distribute low skew clocks across the backplane or the motherboard.
Features • Typical Input Clock Frequency 100, 133, 166, or 400 MHz • 220 ps Typical Rise and Fall Times • 800 ps Typical Propagation Delay • Dtpd 100 ps Maximum Propagation Delay Variation Per Each Diff Pair • 0.
1 ps Typical Integrated Phase Jitter RMS • Operating Range: VCC = 3.
0 V to 3.
6 V with VEE = 0 V • Differential HCSL Output Levels • LVDS Output Levels with Interface Termination • These are Pb−Free Devices Applications • Clock Distribution • PCIe I, II, III • Networking and Communications • High End Computing • Routers End Products • Servers • FBDIMM Memory Card • Ethernet Switch/Routers http://onsemi.
com 1 32 QFN32 MN SUFFIX CASE 488AM MARKING DIAGRAM* 1 NB3N 108K AWLYYWWG A = Assembly Location WL = Wafer Lot YY = Year WW = Work Week G = Pb−Free Package *For additional marking information, refer to ...


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