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Product Overview  


For complete documentation, see the data sheet.

Printed On: 7/11/2015

NB4N111K: Clock Fanout Buffer, 1:10 Differential, 3.3 V, with HCSL Level Output

Product Description
The NB4N111K is a differential input clock 1 to 10 HCSL fanout buffer, optimized for ultra low propagation delay variation. The NB4N111K is designed with HCSL clock distribution for FBDIMM applications in mind. Inputs can accept differential LVPECL, CML, or LVDS levels. Single-ended LVPECL, CML, LVCMOS or LVTTL levels are accepted with the proper VREFAC supply (see Figures 5, 10, 11, 12, and 13). Clock input pins incorporate an internal 50 ohm on die termination resistors.
Features   Benefits
     
  • Typical Input Clock Frequencies: 100, 133, 166, 200, 266, 333, and400 MHz
 
  • Meets wide range of FBDIMM bus frequencies
  • <1 ps RMS Additive Clock jitter
 
  • Best in class for jitter performance
  • Operating Range: VCC = 3.0 V to 3.6 V with VEE = 0 V
 
  • Ensures operation in the majority of designs
  • 340 ps Typical Rise and Fall Times
   
  • 800 ps Typical Propagation Delay
   
  • delta tpd 100 ps Maximum Propagation Delay Variation Per Each Differential Pair
   
  • Differential HCSL Output Level
   
Applications   End Products
  • HCSL FBDIMM Memory CLOCK buffer
  • General High Performance HCSL Fanout buffer
  • Clock Distribution
  • PCIe I, II, II
  • Networking
 
  • Servers
  • Routers
  • FBDIMM Memory Card
Selected Electrical Specifications

Product Compliance Status Description Type Channels Input / Output Ratio Input Level Output Level VCC Typ (V) tJitterRMS Typ (ps) tskew(o-o) Max (ps) tpd Typ (ns) tR & tF Max (ps) fmaxClock Typ (MHz) fmaxData Typ (Mbps) Package Type
 Pb-free 
 Halide free 
 Active     Clock Fanout Buffer, 1:10 Differential, 3.3 V, with HCSL Level Output   Buffer   1   1:10 
 CML 
 ECL 
 LVDS 
 HCSL   3.3   1   100   0.8   700   400     QFN-32 
 Pb-free 
 Halide free 
 Active     Clock Fanout Buffer, 1:10 Differential, 3.3 V, with HCSL Level Output   Buffer   1   1:10 
 CML 
 ECL 
 LVDS 
 HCSL   3.3   1   100   0.8   700   400     QFN-32 
Package Availability
Type
PB free
Standard
QFN-32 x