Si5x PCIe Clock Generators and Buffers Skyworks Solutions Si5x PCIe Clock Generators and Buffers offer the industry's highest level of performance per watt for clocking applications required to meet PCI Express® Gen1/2/3 standards and have 2x lower power consumption than competitors yet provide up to 50% margin to PCI-Express jitter specifications. Skyworks Si5x 5214x PCIe Clock Generators and Buffers fully integrate termination resistors, reduce BOM cost, board space requirements, and design complexity. Si5x PCIe Clock Generators and Buffers consist of two to nine output solutions that address a wide range of storage, embedded, enterprise, communication, and consumer applications.