SiTime, Silicon MEMS Oscillators and Clock Generators

SiT9156: 10 GbE Oscillator with 0.3 ps Phase Jitter

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Differential Oscillator Package

The SiT9156 is a low jitter, ultra performance, Differential Oscillator that offers best-in-class 0.3 ps of RMS phase jitter for 10GbE applications. This differential oscillator covers five frequencies from 156.25 to 161.1328 MHz as well as up-shifted versions of these frequencies for buffer management (overflow). Unlike quartz or SAW based traditional oscillators, the SiT9156 is available in any combination of voltage (2.5 to 3.3V), frequency stability (±10, ±25, or ±50 PPM) and package (5032, 7050) options.

 

 

Supported Frequencies (MHz)
  • 156.250000
  • 156.253906
  • 156.257812
  • 156.261718
  • 161.132800
    Positive frequency shift: ±25, ±50, ±75 PPM
Frequency Stability (PPM) ±10, ±25, ±50
RMS Integrated Phase Jitter 
0.3 ps
Temp Range (°C) -20 to +70, -40 to +85
Supply Voltage (V) 2.5 and 3.3
Package LxWxH (mm) 3.2 x 2.5 x 0.75, 5.0 x 3.2 x 0.75, 7.0 x 5.0 x 0.9
Status Production
Applications
  • 10 Gb Ethernet
  • XAUI

 

Features Benefits
  • 0.3 ps integrated RMS phase jitter
  • Excellent jitter margin for the most stringent applications such as 10 Gb Ethernet
  • Configurable positive frequency shift, ±25, ±50, or ±75 PPM
  • Excellent frequency stability as low as ±10 PPM
  • Buffer management prevents overflow at the receiver, while maintaining excellent stability
  • Better timing margin that enhances system stability and robustness
  • Programmability
  • LVPECL and LVDS output signaling types
  • Supply voltage of 2.5V and 3.3V
  • Frequency stability from ±10 PPM to ±50 PPM
  • Customized specifications for optimal system performance
  • Cost effective
  • Easy availability of any device specification within the operating range
  • Two industry standard packages
  • 100% drop in replacement for quartz, SAW and overtone oscillators without any design changes
  • 3 to 5 weeks lead time
    • Any voltage
    • Any package
  • Reduce inventory overhead
  • Mitigate shortage risks

 

 

9156-ordering

Supported Frequencies (MHz)

  • 156.250000
  • 156.253906
  • 156.257812
  • 156.261718
  • 161.132800

SiT9156 2.5V LVDS IBIS icon SiT9156_lvds_2p5
LVPECL IBIS icon SiT9156_lvpecl_2p5
3.3V LVDS IBIS icon SiT9156_lvds_3p3
LVPECL IBIS icon SiT9156_lvpecl_3p3