Innovative DSPLL® Technology

Silicon Laboratories invented the patented DSPLL approach to simplify the clock multiplication and jitter attenuation circuitry required in high-speed telecommunication applications.

This clock technology is now the standard for replacing multiple discrete phase-locked-loop (PLL) components with a single IC that integrates digital signal processing (DSP) circuitry and an ultra-low-jitter voltage-controlled oscillator.

For frequency control products, this proprietary technology eliminates numerous complex manufacturing steps required to frequency tune traditional SAW and crystal-based implementations by moving the frequency synthesis capability into a high-performance, mixed-signal IC.

Silicon Labs' XOs and VCXOs derive frequencies up to 1.4 GHz from a simple, low-frequency resonator and calibrate the output to an initial accuracy of 1 ppb. The use of a low-frequency crystal provides tremendous improvements in aging, temperature stability and mechanical reliability.

Documentation

DSPLL White Paper

Software

DSPLLsim EVB Software