Si534x Clock Devices Skyworks Solutions Inc. Si534x/Si538x clock devices are designed to meet the exacting specifications and high-performance requirements of Internet Infrastructure. These ultra-low-jitter clock devices reduce cost and complexity for a wide range of timing applications. Skyworks Si534x/Si538x clock devices provide fast, free and easy customization for any frequency on any output with no compromise on performance or specifications. This includes any frequency up to 800MHz with 0ppm frequency synthesis, across 4 inputs and 10 outputs with any voltage and phase jitter as low as 100fs(RMS). Skyworks clocks enable a true 'clock tree on-chip' solution.