Timing Solutions for Xilinx FPGAs & SoCs Skyworks Solutions Inc. Timing Solutions for Xilinx Reference Designs are flexible timing devices that enable hardware designers to simplify clock generation, distribution, and jitter attenuation. These devices include network synchronizers, jitter-attenuating clocks, clock generators, clock buffers, PCIe clocks and buffers, and oscillators. Skyworks Solutions Inc. timing solutions are widely used in several Xilinx evaluation boards and development kits.