Silicon Laboratories has expanded its PCI Express (PCIe) clock generator and clock buffer product range which includes both off-the-shelf Si5214x clock generators and Si5315x clock buffers and the Si5335 web-customisable clock generator/buffer for FPGA- and SoC-based designs requiring various differential clock formats that also comply with the PCIe standard.

The Si5214x clock generator and Si5315x clock buffer families consist of two- to nine-output timing devices. 

The devices also meet PCIe jitter requirements with up to 50% margin, according the supplier.

For immunity to electromagnetic interference (EMI) and radio frequency interference (RFI), the Si5214x and Si5315x families feature programmable edge rate and skew controls for each individual output.

Using a built-in I2C interface, developers can fine-tune signals and fix integrity issues on the fly without adding more components. This signal integrity tuning capability streamlines EMI compliance, speeding time to market for PCIe board designs.

Web-Customizable Quad Clock Generator/Buffer The Si5335 clock generator/buffer IC is complex timing challenges in PCIe- and FPGA-based applications. Factory-customized, pin-controlled Si5335 devices are available in two weeks (without minimum order restrictions) through Silicon Labs’ easy-to-use ClockBuilder Web configuration utility at www.silabs.com/Clockbuilder