SI52202-A02BGM

Overview

The Skyworks Si52202-A02BGM is a two-output PCI Express clock generator supporting Gen 1 through Gen 7 and SRIS applications. Operating on a 1.5 V to 1.8 V supply, it provides two 100 MHz LP-HCSL differential outputs compliant with PCIe common clock and separate reference architectures. The device features individual hardware control pins for output enable, spread spectrum selection (0.25% or 0.5%), and frequency configuration. It includes internal 100 Ω or 85 Ω line matching and supports I2C control with readback capabilities. The component operates within an extended temperature range of –40 °C to 85 °C.

Feature Summary

• Two-output LP-HCSL clock generator compliant with PCIe Gen 1/2/3/4/5/6/7 specifications
• Integrated hardware control pins for Output Enable, Spread Spectrum Enable, and Frequency Select
• Internal 100 Ω or 85 Ω impedance matching eliminates external resistors
• Low jitter performance of 0.085 ps (RMS) maximum

Applications

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

Procurement Notes

Verify the specific ordering suffix 'BGM' against the manufacturer's current documentation to confirm package type and tape/reel specifications. Confirm RoHS compliance status and moisture sensitivity level requirements prior to procurement. Ensure the design accounts for the 20-pin QFN thermal pad connection requirements.

Selection Notes

Select this model when only two differential PCIe clock outputs are required. Note that the Si52202 output frequency is limited to 100 MHz unless 133 MHz or 200 MHz variants are explicitly requested from the manufacturer. Verify power supply sequencing and ensure the ground pad is connected for proper thermal and electrical operation.

Part Context

The Si52202 is part of the Si522xx family, which also includes the Si52212 (12 outputs), Si52208 (8 outputs), and Si52204 (4 outputs). All devices share similar architectural features, including low power consumption and small QFN footprints, but differ in output count and package size. The Si52202 utilizes the smallest 20-pin QFN (3 x 3 mm) package in the industry.

Replacement Considerations

Si52204-A02AGM: Requires board redesign due to different pinout and package size.

FAQ

Does the Si52202 support Wake-on LAN?

No, the Power-down (PWRDNb) function does not support Wake-on LAN for the Si52202 model.

What is the default output frequency for the Si52202?

The standard output frequency is 100 MHz. Frequencies of 133 MHz or 200 MHz require contacting the manufacturer.

How is spread spectrum enabled on the Si52202?

Spread spectrum can be controlled via the SS_EN hardware pin or through I2C commands, allowing selection of 0.25% or 0.5% down-spread.