SI5338N-B04252-GMR

Overview

The SI5338N-B04252-GMR is a programmable quad clock generator from Skyworks Solutions, utilizing MultiSynth technology to synthesize any frequency on four independent output drivers. It supports differential and single-ended outputs with frequencies up to 710 MHz. The device operates on a single core supply of 1.8 V, 2.5 V, or 3.3 V and features low phase jitter of 0.7 ps RMS typical. Configuration is performed via an I²C/SMBus interface, allowing for flexible input references including crystals, CMOS, and differential signals.

Feature Summary

• Four independent output drivers supporting LVPECL, LVDS, HCSL, CMOS, SSTL, and HSTL formats
• Low phase jitter performance of 0.7 ps RMS typical
• I²C/SMBus compatible serial programming interface
• Flexible input reference options: external crystal (8–30 MHz), CMOS (5–200 MHz), or differential (5–710 MHz)

Applications

• PCIe Gen 1/2/3/4 common clock and SRNS compliant systems
• Ethernet switch and router timing
• Processor and FPGA clocking
• Broadcast video/audio timing

Procurement Notes

Verify the specific ordering suffix B04252 against the manufacturer's current datasheet to confirm the programmed frequency set and output configuration. Ensure the QFN-24 package land pattern matches the recommended PCB layout specifications provided in the official documentation.

Selection Notes

Select this component when zero ppm frequency accuracy is required across multiple independent clocks. Confirm that the required output voltage levels (1.5 V, 1.8 V, 2.5 V, or 3.3 V) are supported by the available VDDO pins. Validate that the input reference frequency falls within the supported ranges for the chosen input type.

Part Context

This part belongs to the Si5338 family of I²C-programmable clock generators. The 'N' designation typically indicates a specific pinout or feature set variant within the series, while 'GMR' denotes tape-and-reel packaging. The device replaces multiple discrete oscillators with a single programmable solution.

Replacement Considerations

Direct replacements must be verified against the specific B04252 factory configuration. Other Si5338 variants may require reprogramming or hardware changes if their default pinouts or supported output formats differ.