SI5338M-B05694-GMR

Overview

The SI5338M-B05694-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 for LVDS/LVPECL/CML formats, 350 MHz for SSTL/HSTL, and 200 MHz for CMOS. The device features low phase jitter of 0.7 ps RMS typical, glitchless frequency adjustments in 1 ppm steps, and independent phase adjustment with <20 ps accuracy. It operates from a single core supply of 1.8 V, 2.5 V, or 3.3 V and is housed in a compact 4x4 mm QFN-24 package.

Feature Summary

• MultiSynth technology enables independent, any-frequency synthesis on four output drivers with true zero ppm precision.
• Low phase jitter performance of 0.7 ps RMS typical, compliant with PCIe Gen 1/2/3/4 Common Clock and Gen 3 SRNS standards.
• Highly configurable output drivers supporting LVPECL, LVDS, CML, HCSL, CMOS, SSTL, and HSTL formats with independent voltage levels (1.5, 1.8, 2.5, or 3.3 V).
• Glitchless frequency increment/decrement in 1 ppm steps and independent phase adjustment with <20 ps step accuracy.

Applications

• Ethernet switch/router clocking
• PCIe Gen1/2/3/4 systems
• Broadcast video/audio timing
• Processor and FPGA clocking
• Telecom line cards

Procurement Notes

Verify the specific ordering suffix B05694 against the manufacturer's current datasheet to confirm the programmed configuration file. Ensure the I2C pull-up voltage compatibility if operating below 2.5 V by checking register settings. Confirm the package type is 24-QFN (4x4 mm) and verify moisture sensitivity handling requirements during assembly.

Selection Notes

Select this component when multiple independent clock frequencies are required from a single IC to replace discrete oscillators. Ensure the input reference matches available sources (crystal, CMOS, or differential up to 710 MHz). Verify that the required output signal formats and voltage levels are supported by the configurable drivers. Check thermal resistance specifications if operating at high output frequencies or temperatures.

Part Context

This part belongs to the Si5338 family of I2C-programmable clock generators. The 'M' suffix typically denotes a specific pre-programmed configuration variant within the series. The 'GMR' indicates tape and reel packaging. Other variants in the family share the same silicon but differ in factory-programmed registers or output configurations.

Replacement Considerations

Direct pin-to-pin replacements within the Si5338 family may require reprogramming via ClockBuilder Pro software to match the original design's frequency and format settings. Verify that alternative SKUs support the same output drive strengths and jitter requirements for the specific application.