3.3 V 100/133 MHz Differential 1:12 Push-Pull Clock ZDB/Fanout Buffer for PCle

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Overview

The NB3N1200K and NB3W1200L differential clock buffers areDB1200Z and DB1200ZL compliant and are designed to work inconjunction with a PCIe compliant source clock synthesizer to providepoint−to−point clocks to multiple agents. The device is capable ofdistributing the reference clocks for Intel® QuickPath Interconnect(Intel QPI & UPI), PCIe Gen1/Gen2/Gen3/Gen4, SAS, SATA, and Intel ScalableMemory Interconnect (Intel SMI) applications. The VCO of thedevice is optimized to support 100 MHz and 133 MHz frequencyoperation. The NB3N1200K and NB3W1200L utilizepseudo−external feedback topology to achieve low input−to outputdelay variation. The NB3N1200K is configured with the HCSL buffertype, while the NB3W1200L is configured with the low−powerNMOS Push−Pull buffer type.

  • Industrial
  • Networking
  • Computing
  • Consumer
  • Desktop
  • Notebook
  • Switchers/Routers
  • Servers
  • Set Top Box
  • Automated Test Equipment
  • 12 Differential Clock Output Pairs @ 0.7 V
  • Low−Power NMOS Push−Pull Compatible Outputs for NB3W1200L
  • Optimized 100 MHz and 133 MHz Operating Frequencies to Meet The Next Generation PCIe Gen 2/Gen 3/ Gen 4 and Intel QPI & UPI Phase Jitter
  • DB1200ZL Compliant
  • 3.3 V ±5% Supply Voltage Operation
  • Fixed−Feedback for Lowest Input−To−Output Delay Variation
  • SMBus Programmable Configurations to Allow Multiple Buffers in aSingle Control Network
  • PLL Bypass Configurable for PLL or Fanout Operation
  • Programmable PLL Bandwidth
  • 2 Tri−level Addresses Selection (9 SMBUS Addresses)
  • Individual OE Control Pin for Each of 12 Outputs
  • 50 ps Max Output−to−Output Skew Performance
  • 50 ps Max Cycle−to−Cycle Jitter (PLL mode)
  • 100 ps Input to Output Delay Variation Performance
  • QFN 64−pin Package, 9 mm x 9 mm
  • Spread Spectrum Compatible: Tracks Input Clock Spreading for LowEMI
  • 0°C to +70°C Ambient Operating Temperature

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Reference Price

NB3W1200LMNTXG

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Active

CAD Model

Pb

A

H

P

QFN-64

3

260

REEL

1000

N

HCSL

HCSL

12

3.3

50

133

50

Price N/A

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