NB4N441: PLL Clock Synthesizer, Multiprotocol, 3.3 V Serial Input, with Differential LVPECL Output

The NB4N441 is a precision clock synthesizer which generates a differential LVPECL clock output frequency from 12.5 MHz to 425 MHz. A Serial Peripheral Interface (SPI) is used to configure the device to produce one of sixteen popular standard protocol output frequencies from a single 27 MHz crystal reference. The NB4N441 also has the added feature of allowing application specific output frequencies from 12.5 MHz to 425 MHz using crystals within the range of 10 MHz to 28 MHz.

Features
  • Serial Load Capability
  • Flexible Input
  • Exceeds Bellcore and ITU Jitter Generation Specification
  • Performs Precision Clock Generation and Synthesis from a Single 27 MHz Crystal Reference
  • Output Enable
  • Fully Integrated Phase Lock Loop with Internal Loop Filter
  • PLL Lock Detect Output
Benefits
  • Allows Proprietary Frequencies
  • Allows for External Clock Reference
Applications
  • Clock Generation for Networking, Workstations, and ATE
Design & Development Tools (1)
Document TitleDocument ID/SizeRevisionRevision Date
NB4N441 Design WorksheetNB4N441 DWS.XLS (90.0kB)2
Package Drawings (1)
Document TitleDocument ID/SizeRevision
QFN24, 4x4, 0.5P485L-01 (60.0kB)B
Data Sheets (1)
Document TitleDocument ID/SizeRevisionRevision Date
3.3V Serial Input MultiProtocol PLL Clock Synthesizer, Differential LVPECL OutputNB4N441/D (140.0kB)2
Evaluation Board Documents (1)
Document TitleDocument ID/SizeRevisionRevision Date
NB4N441MNGEVB Evaluation Board User's ManualEVBUM2073/D (292.0kB)1
Evaluation/Development Tool Information
ProductStatusComplianceShort Description
NB4N441MNGEVBActivePb-freeMulti Protocol Clock Synthesizer with Serial Configuration Evaluation Board
Order Information
ProductStatusCompliancePackageMSL*ContainerBudgetary Price/Unit
NB4N441MNGActivePb-free Halide freeQFN-24485L-011Tube92Contact BDTIC
NB4N441MNR2GActivePb-free Halide freeQFN-24485L-011Tape and Reel3000Contact BDTIC
Specifications
ProductInput LevelOutput LevelVS Typ (V)fin Typ (MHz)fout Typ (MHz)tJitter(Cy-Cy) Typ (ps)tJitter(Period) Typ (ps)tJitter(Φ) Typ (ps)tR & tF Typ (ps)tR & tF Max (ps)TA Min (°C)TA Max (°C)
NB4N441MNGCMOSCMOS3.310 27 28 5012.5-42525300425-4085
NB4N441MNR2GCMOSCMOS3.328 27 10 5012.5-42525300425-4085
3.3V Serial Input MultiProtocol PLL Clock Synthesizer, Differential LVPECL Output (140.0kB) NB4N441
NB4N441 Design Worksheet NB4N441
EVBUM2073/D - 292 NB4N441MNGEVB
QFN24, 4x4, 0.5P NCN8026