The Si522xx PCIe clock generators are available from Mouser Electronics, Inc. from Silicon Labs. This new family of clock generators is compliant with all current versions of PCI Express® (PCIe®), including PCIe Gen 4 standards and Separate Reference Independent Spread), delivering exceptional jitter performance of just 0.4 picoseconds RMS. The family's powerful applications include servers, storage, network interface cards, data centers, digital cameras, and docking stations. Available Silicon Labs Si522xx PCIe clock generators use low-power push-pull output memory technology to limit power consumption, reduce package size, and eliminate the need for external terminating resistors on High Speed (HCSL) outputs. Current Steering Logic).
The devices' internal power filtering reduces the number of components, saving about 30% of board space compared to similar products. The Si52212, Si52208, and Si52204 devices can respectively supply twelve, eight, and four 25 MHz LVCMOS reference clock outputs, while the Si52202 can only supply two 100 MHz PCIe clock outputs. All Si522xx devices have pins Individual hardware control pads to enable and disable each output, enable/disable spread spectrum for EMI reduction, and frequency selection for either 133 MHz or 200 MHz differential output frequencies.
These features can also be controlled via I2C. The Si522xx clock generators are compatible with the Silicon Labs Si52204-EVB evaluation board, which allows engineers to evaluate the Si52204 four-output clock generator. The board offers I2C port access, plus jumpers and SMA connectors for easy static configuration of control inputs and selector switches to determine voltage for both IO and core supplies. For more information on the Si522xx and Si52204-EVB clock generators, visit https://www.mouser.com/silabssi522xx-clock-generators/.
