SI52202-A01AGMR

Overview

The Si52202-A01AGMR is a low-power, two-output PCI Express clock generator from the Si522xx family, designed for PCIe Gen 1 through Gen 7 and SRIS applications. It operates on a 1.5 V to 1.8 V supply with separate VDD and VDD_IO rails. The device provides two 100 MHz differential LP-HCSL outputs compliant with common clock and separate reference architectures. Key electrical specifications include a maximum RMS jitter of 0.085 ps, internal 85 Ω line matching, and an operating temperature range of –40 °C to +85 °C. It utilizes a 25 MHz crystal or clock input and features I2C control capabilities.

Feature Summary

• Two-output LP-HCSL clock generator supporting PCIe Gen 1/2/3/4/5/6/7
• Low jitter performance with 0.085 ps (RMS) max to meet PCIe Gen 6 specifications
• Internal 85 Ω impedance matching eliminates external resistors
• Individual hardware control pins and I2C support for output enable, spread spectrum, and frequency select

Applications

• Servers
• Storage systems
• Data centers
• PCIe add-on cards
• Network Interface Cards (NICs)

Procurement Notes

Verify the specific ordering suffix against the manufacturer's current documentation to confirm package type and tape/reel specifications. Ensure that the required voltage levels and termination requirements match the target board design before procurement. Cross-reference the part number with official distributors to confirm availability and lead times.

Selection Notes

Select the Si52202 when a compact solution with only two differential PCIe clock outputs is required. This model is distinct from the Si52204, Si52208, and Si52212, which offer four, eight, and twelve outputs respectively. Note that the Si52202 does not provide a 25 MHz LVCMOS reference clock output, unlike other members of the Si522xx family. Verify compatibility with the system's power supply voltages and thermal constraints.

Part Context

The Si52202 is part of the Si522xx family, which includes the Si52212, Si52208, and Si52204. These devices share similar architectural features but differ in output count and package size. The Si52202 specifically uses a 20-pin QFN package, making it the smallest option in the series. All models support spread spectrum modulation for EMI reduction and feature adjustable slew rates.

Replacement Considerations

Direct replacements within the same family include the Si52204, Si52208, and Si52212, provided the additional outputs are acceptable. Verify pinout compatibility and software configuration if migrating between different output counts. Consult Skyworks Solutions for any updated revisions or alternative components if the Si52202 is discontinued.