SI5338M-B04828-GMR

Overview

The SI5338M-B04828-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 operates on a single core supply of 1.8 V, 2.5 V, or 3.3 V, drawing a typical current of 45 mA. It features low phase jitter of 0.7 ps RMS, zero ppm frequency accuracy, and I2C/SMBus programming capability within an operating temperature range of –40 °C to +85 °C.

Feature Summary

• MultiSynth™ Technology: Enables independent, any-frequency synthesis with 0 ppm precision on four output drivers.
• Flexible Output Formats: Supports LVPECL, LVDS, CML, HCSL, CMOS, SSTL, and HSTL with independent voltage levels (1.5 V, 1.8 V, 2.5 V, 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 clocking
• Ethernet switch/router timing
• FPGA and processor clocking
• Broadcast video/audio timing
• Telecom line cards and MSAN/DSLAM/PON systems

Procurement Notes

Verify the specific ordering suffix B04828 against the manufacturer's official documentation to confirm the programmed frequency plan and pinout configuration. Ensure the I2C pull-up voltage compatibility matches the system design, particularly if operating below 2.5 V. Confirm that the QFN-24 package thermal characteristics meet the application's heat dissipation requirements.

Selection Notes

Select this component when multiple independent clock frequencies are required from a single IC, replacing discrete oscillators. Choose based on the maximum output frequency needed (up to 710 MHz) and the specific signal format (LVDS, CMOS, etc.). Ensure the input reference source (crystal, CMOS, or differential) aligns with the supported input ranges of 5 MHz to 710 MHz.

Part Context

This part belongs to the Si5338 family of I2C-programmable clock generators. The 'M' suffix typically denotes specific hardware configuration options such as output enable control methods, while 'B04828' indicates a factory-programmed frequency plan. The '-GMR' suffix signifies tape-and-reel packaging for surface-mount assembly.

Replacement Considerations

Direct replacements within the Si5338 family include SI5338A, SI5338B, SI5338C, SI5338F, SI5338J, SI5338N, and SI5338Q variants. Verify that the substitute part number has the identical or compatible factory-programmed frequency plan and pin assignment before substitution.