Spread Spectrum Timing ICs

Technical explanation to the topic Spread Spectrum Clock ICs:

What do Spread Spectrum ICs do?

 
Detailed product-information:
Spread Spectrum Timing ICs Series PLL701

 
Programmable Miniature Spread Spectrum Clock ICs
 
Concepts de synchronisation pour WiMax

Using our SPREAD SPECTRUM TIMING ICs enables you to realize EMV critical clock signals in a very efficient, fast and reasonable way.

The “plug-and-play“ SST-ICs of our series PLL701 have depending on version 1 to 9 independently programmable output frequencies in the range from 10.0 to 240MHz.

The user can choose from 3 different Spread Spectrum modes. Available are the asymetric, center and downspread modes. The Center Spread is the most used Spread Spectrum mode.

The user can freely programme the Spread Spectrum modes in the range of -0.25 to -3.75%.

In comparison to Spread Spectrum quartz oscillators our Spread Spectrum ICs have the following advantages:

• About 60% cost savings.
• The SST-ICs can be clocked with already existing reference signals from an other source – you are not forced to use a crystal or oscillator as a clock generator.
• The Spread Spectrum modes and the output frequencies can be re-programmed at any time even during a running series production. This has also the big advantage that the development engineer can adjust freely programmable the Spread of his application with a very high resolution. A quartz oscillator will have the Spread it has been ordered with. That’s it. Our SST-ICs can be re-programmed at any time.
• Further benchmarks of the SST-ICs are the excellent jitter- and phase noise values, which are better by a factor 5-8 than the values of normal Spread Spectrum quartz oscillators.
• Further cost savings are possible due to the reduction of time-to-market of the application due to the easy use and free programming of the SST-ICs.

The available packages are only available in the lead-free version.

Since we have a deep and wide spectrum of crystals we are certain that we can offer the suitable quartz to any selected Spread Spectrum IC.