SI5338C-B05660-GMR

Overview

The SI5338C-B05660-GMR is a programmable quad clock generator from Skyworks Solutions. It synthesizes any frequency on four output drivers using MultiSynth technology, achieving 0 ppm precision. The device supports differential and single-ended outputs including LVPECL, LVDS, HCSL, CMOS, SSTL, and HSTL. Input references range from external crystals (8–30 MHz) to differential inputs up to 710 MHz. It operates on a single core supply of 1.8, 2.5, or 3.3 V with typical current consumption of 45 mA. Key electrical parameters include a maximum output frequency of 710 MHz, phase jitter of 0.7 ps RMS, and operation within a temperature range of –40 to +85 °C.

Feature Summary

• I2C/SMBus programmable interface for flexible configuration
• MultiSynth technology enabling independent zero-ppm frequency synthesis on four outputs
• Low phase jitter performance of 0.7 ps RMS typical
• Supports glitchless frequency adjustments in 1 ppm steps via independent increment/decrement features

Applications

• PCIe Gen 1/2/3/4 common clock and SRNS compliant systems
• Ethernet switch and router timing
• FPGA and processor clocking
• Broadcast video/audio timing
• Telecom line cards and MSAN/DSLAM/PON equipment

Procurement Notes

Verify the specific ordering suffix against the manufacturer's official documentation to confirm package type, tape-and-reel specifications, and environmental compliance status. Ensure that the I2C pull-up voltage requirements align with the system design, particularly if operating below 2.5 V. Cross-reference the part number with the latest datasheet revision to confirm pinout compatibility and functional specifications before procurement.

Selection Notes

Select this component when designing systems requiring multiple independent clock frequencies with low jitter from a single IC. It is suitable for replacing multiple discrete oscillators. Consider the output driver formats required by the load, such as LVDS for high-speed serial links or CMOS for lower speed interfaces. Verify that the input reference source matches the supported frequency ranges, whether crystal, CMOS, or differential.

Part Context

This part belongs to the Si5338 family of I2C-programmable clock generators. The family utilizes patented MultiSynth technology to provide highly configurable clock solutions in a compact 4x4 mm QFN package. The series is designed to replace multiple fixed-frequency oscillators, reducing board space and power consumption while offering flexibility through software programming tools like ClockBuilder Pro.

Replacement Considerations

Direct replacements within the same family include other Si5338 variants with different factory configurations. When substituting, ensure the new part supports the required output frequencies and formats. Verify that the pinout remains compatible, as the physical package is consistent across the series. Programming files generated for one variant may not be directly applicable to another without adjustment.