SI5338D-B05172-GM

Overview

The SI5338D-B05172-GM is a programmable quad clock generator from Skyworks Solutions, utilizing MultiSynth technology to synthesize any frequency on four independent output drivers with zero ppm precision. It supports differential and single-ended outputs including LVPECL, LVDS, HCSL, CMOS, SSTL, and HSTL. The device operates from a single core supply of 1.8 V, 2.5 V, or 3.3 V and accepts inputs ranging from external crystals (8–30 MHz) to differential clocks up to 710 MHz. Key electrical parameters include a typical RMS jitter of 0.7 ps, a maximum output frequency of 710 MHz for differential formats, and operation within a temperature range of –40 °C to +85 °C.

Feature Summary

• MultiSynth™ Technology: Generates four independent clocks with true zero ppm frequency accuracy.
• Flexible Output Drivers: Supports LVPECL, LVDS, CML, HCSL, CMOS, SSTL, and HSTL formats with independent voltage levels (1.5, 1.8, 2.5, or 3.3 V).
• Low Jitter Performance: Achieves typical RMS jitter of 0.7 ps; compliant with PCIe Gen 1/2/3/4 Common Clock and Gen 3 SRNS standards.
• Glitchless Frequency Adjustment: Features independent frequency increment/decrement in 1 ppm steps and phase adjustment with <20 ps accuracy.

Applications

• PCIe Gen 1/2/3/4 systems
• Ethernet switch/router clocking
• Processor and FPGA clocking
• Broadcast video/audio timing
• Telecom line cards

Procurement Notes

Verify the specific ordering suffix against the manufacturer's current documentation to confirm pinout compatibility and factory configuration. Ensure the I2C pull-up voltage aligns with the system bus requirements, as register adjustments may be necessary for voltages below 2.5 V. Confirm that the selected package variant matches the PCB land pattern specifications provided in the datasheet.

Selection Notes

Select this component when multiple distinct clock frequencies are required from a single source with high precision. Evaluate the output driver requirements to ensure the supported signal formats (LVPECL, LVDS, etc.) match the load. Verify input reference capabilities, noting that differential inputs support frequencies up to 710 MHz while single-ended CMOS inputs are limited to 200 MHz.

Part Context

This part belongs to the Si5338 family of I2C-programmable clock generators. The family shares a common 4x4 mm QFN-24 package and core architecture but varies by internal configuration and output drive strength. The 'B' suffix typically denotes a specific factory programming configuration, while 'GMR' indicates tape-and-reel packaging.

Replacement Considerations

Direct replacements within the Si5338 family require identical factory programming configurations. Cross-model substitution requires verification of pinout compatibility and output driver specifications. Consult the official cross-reference guide for confirmed equivalent part numbers.