SI5338M-B05719-GMR

Overview

The SI5338M-B05719-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 250 MHz for HCSL. The device features low phase jitter of 0.7 ps RMS typical, 0 ppm frequency accuracy, and glitchless frequency adjustments in 1 ppm steps. It operates from a single core supply of 1.8, 2.5, 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 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.
• I2C/SMBus compatible interface with independent phase adjustment (<20 ps steps) and spread spectrum capabilities.

Applications

• PCIe Gen 1/2/3/4 systems
• Ethernet switch/router clocking
• Processor and FPGA clocking
• Broadcast video/audio timing
• Telecom line cards and MSAN/DSLAM/PON

Procurement Notes

Verify the specific ordering suffix B05719 against the manufacturer's official documentation to confirm the exact pre-programmed frequency configuration and output format. Ensure compatibility with the target system's I2C bus voltage levels (1.71 V to 3.63 V) and core supply requirements (1.8 V, 2.5 V, or 3.3 V). Confirm that the required output frequencies fall within the supported ranges for the selected signal formats.

Selection Notes

Select this component when multiple independent clock frequencies are required from a single IC to replace discrete oscillators. Consider the Si5338M variant if the application demands high-frequency differential outputs up to 710 MHz. Use ClockBuilder Pro software for programming. Verify thermal performance, as the junction-to-ambient thermal resistance is 37 °C/W in still air, and ensure the PCB land pattern matches the recommended 24-QFN layout.

Part Context

The SI5338 series is part of Skyworks' MultiSynth family of clock generators designed for high-performance timing applications. The 'M' in the part number typically denotes a specific factory pre-programmed configuration or output capability set within the broader Si5338 portfolio. This series replaces multiple crystal oscillators, reducing board space and power consumption while providing flexible clock distribution for complex digital systems.

Replacement Considerations

Public confirmed substitute part numbers are not available in the provided source material. When replacing existing oscillators, verify that the new device's input reference range (external crystal 8-30 MHz, CMOS 5-200 MHz, etc.) matches the system's input clock source. Ensure the output drive strength and voltage levels are compatible with the receiving devices.