SI5338C-B05627-GMR

Overview

The SI5338C-B05627-GMR is a programmable quad clock generator utilizing MultiSynth technology to synthesize any frequency with 0 ppm precision on four independent outputs. It supports flexible input references including differential clocks up to 710 MHz and single-ended inputs up to 350 MHz. 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 4 x 4 mm QFN-24 package.

Feature Summary

• I2C/SMBus programmable interface for configuration via ClockBuilder Pro software
• Independent output drivers supporting LVPECL, LVDS, CML, HCSL, CMOS, SSTL, and HSTL formats
• Glitchless frequency increment/decrement and independent phase adjustment capabilities
• Configurable spread spectrum generation with frequencies from 5 to 350 MHz

Applications

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

Procurement Notes

Verify the specific factory programming code associated with the B05627 suffix against the manufacturer's ordering guide to confirm pre-programmed frequency and format parameters. Ensure I2C pull-up voltages are compatible with the selected core supply voltage, particularly when operating below 2.5 V.

Selection Notes

Select this component when zero ppm frequency accuracy and independent output formatting are required. Validate that the target application fits within the supported input frequency ranges (up to 710 MHz differential) and output limits (up to 710 MHz for LVPECL/LVDS). Confirm thermal requirements for the QFN-24 package under maximum load conditions.

Part Context

This part belongs to the Si5338 family of high-performance, low-jitter clock generators. The 'C' designation typically indicates a specific factory-programmed variant with fixed output frequencies and formats, distinguishing it from fully blank programmable versions like the J or Q series.

Replacement Considerations

Direct pin-to-pin replacements within the same package include other Si5338 variants such as SI5338J-B-GMR or SI5338Q-B-GMR. However, these alternatives require reprogramming via I2C and do not share the pre-configured settings of the B05627 variant.