SI5338A-B05398-GMR

Overview

The SI5338A-B05398-GMR is a programmable quad clock generator from Skyworks Solutions, utilizing MultiSynth technology to synthesize any frequency on four independent output drivers with zero ppm precision. It operates within a core supply range of 1.71 V to 3.63 V and supports input frequencies up to 710 MHz. The device features low phase jitter of 0.7 ps RMS typical, configurable output formats including LVPECL, LVDS, HCSL, CMOS, SSTL, and HSTL, and allows independent voltage levels per driver. It is housed in a compact 4 x 4 mm QFN-24 package.

Feature Summary

• MultiSynth™ technology enables independent, any-frequency synthesis on four differential output drivers with true zero ppm accuracy.
• 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.
• Flexible input reference options including external crystals (8–30 MHz), CMOS (5–200 MHz), SSTL/HSTL (5–350 MHz), and differential inputs (5–710 MHz).
• Independent output voltage support (1.5, 1.8, 2.5, or 3.3 V) and glitchless frequency adjustments via independent increment/decrement features.

Applications

• PCIe Gen 1/2/3/4 systems requiring common clock or SRNS compliance.
• Ethernet switch/router and telecom line cards supporting 1 GbE and 10 GbE.
• Processor and FPGA clocking solutions.
• Broadcast video/audio timing infrastructure.
• MSAN/DSLAM/PON and Fibre Channel/SAN applications.

Procurement Notes

Verify the specific ordering suffix against the manufacturer's current documentation to confirm availability status and packaging configuration. Ensure compatibility with I2C/SMBus interface requirements for system integration. Confirm that the selected part number matches the required output frequency and format specifications for the target application design.

Selection Notes

Select this component when designing systems requiring four independent clock outputs with precise frequency synthesis and low jitter. Consider the supported output formats (LVPECL, LVDS, HCSL, etc.) and supply voltages to match load requirements. Evaluate the input reference source capabilities, as the device supports various crystal and signal types up to 710 MHz.

Part Context

This model belongs to the Si5338 family of high-performance, low-jitter clock generators. The series is designed to replace multiple discrete oscillators, offering space savings and configurability through I2C programming. It utilizes patented MultiSynth technology for flexible clock generation in a small form factor.

Replacement Considerations

Consult official Skyworks documentation for verified substitute part numbers within the Si533x family. Ensure any replacement maintains compatible pinout, electrical characteristics, and software configuration tools such as ClockBuilder Pro.