SI5338K-B04065-GM

Overview

The Skyworks SI5338K-B04065-GM is a programmable quad clock generator utilizing MultiSynth technology. It synthesizes any frequency on four independent output drivers with zero ppm precision and typical phase jitter of 0.7 ps RMS. The device supports flexible input references, including differential inputs up to 710 MHz, and configurable outputs such as LVDS, LVPECL, HCSL, CMOS, SSTL, and HSTL. Operating from a single core supply of 1.8 V, 2.5 V, or 3.3 V, it features I2C/SMBus control, spread spectrum generation, and independent glitchless frequency/phase adjustments within a compact 24-QFN 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 typ, compliant with PCIe Gen 1/2/3/4 Common Clock and SRNS standards.
• Highly-configurable output drivers supporting formats like LVDS, LVPECL, HCSL, CMOS, SSTL, and HSTL across varying voltage levels.
• Flexible input reference options including external crystals (8-30 MHz), CMOS (5-200 MHz), and differential inputs (up to 710 MHz).

Applications

• Ethernet switch/router
• PCIe Gen1/2/3/4 systems
• Broadcast video/audio timing
• Processor and FPGA clocking
• MSAN/DSLAM/PON infrastructure

Procurement Notes

Verify the specific ordering suffix against the manufacturer's current documentation to confirm factory-programmed parameters. Confirm availability status directly with authorized distributors, as stock levels for programmed parts may vary. Ensure the required programming software, such as ClockBuilder Pro, is accessible for configuration validation prior to deployment.

Selection Notes

Select this component when designing systems requiring independent clock frequencies with low jitter and high precision. Verify that the target application supports the available output voltage levels (1.5 V, 1.8 V, 2.5 V, or 3.3 V) and signal formats. Ensure the design accommodates the 24-QFN package dimensions and thermal requirements for the intended operating temperature range of -40°C to +85°C.

Part Context

This part belongs to the Si5338 family of I2C-programmable clock generators. The 'K' designation typically indicates specific factory-programmed NVM content or pin-control configurations distinct from standard generic models. It serves as a replacement for multiple crystal oscillators in complex digital systems requiring precise timing synchronization.

Replacement Considerations

Direct replacements must match the 24-QFN footprint and electrical characteristics. Consult the official datasheet for compatible variants within the Si5338 series that share identical pinouts and functional capabilities. Verify that any substitute part supports the same output formats and jitter specifications required by the system design.