SI5338N-B05182-GM

Overview

The SI5338N-B05182-GM is an I2C-programmable quad clock generator from Skyworks Solutions. It synthesizes any frequency up to 710 MHz on four independent output drivers using MultiSynth technology, achieving zero ppm precision. The device supports differential (LVPECL, LVDS, CML) and single-ended (CMOS, HCSL, SSTL/HSTL) formats with individually configurable supply voltages of 1.5, 1.8, 2.5, or 3.3 V. Key electrical parameters include a typical core supply current of 45 mA, operating voltage range of 1.71–3.63 V, and low phase jitter of 0.7 ps RMS. It operates within a temperature range of –40 to +85 °C in a 4x4 mm QFN-24 package.

Feature Summary

• MultiSynth™ Technology: Generates four independent clocks with 0 ppm frequency accuracy.
• Flexible Output Drivers: Supports LVPECL, LVDS, CML, HCSL, CMOS, SSTL, and HSTL formats.
• Low Phase Jitter: Typical RMS jitter of 0.7 ps for high-performance applications.
• Independent Configuration: Each output driver supports separate frequencies, formats, and supply voltages.

Applications

• PCIe Gen 1/2/3/4 Common Clock and Gen 3 SRNS compliant systems
• Ethernet switch/router timing
• Processor and FPGA clocking
• Broadcast video/audio timing

Procurement Notes

Verify the specific ordering suffix against the manufacturer's official documentation to confirm the programmed frequency plan and output configuration. Ensure the I2C pull-up voltage requirements are met if operating below 2.5 V. Confirm thermal management capabilities for the QFN-24 package under maximum load conditions.

Selection Notes

Select this component when multiple distinct clock frequencies are required from a single source with low jitter. Verify that the input reference frequency matches the supported ranges (e.g., 5–710 MHz for differential inputs). Ensure the target output signal format and voltage levels are compatible with the receiver devices.

Part Context

This part belongs to the Si5338 family of I2C-programmable clock generators. It replaces discrete crystal oscillators and buffers, consolidating frequency synthesis into a single space-saving package. The device is designed for high-density board layouts requiring precise timing synchronization across various digital interfaces.

Replacement Considerations

Direct replacements must support the same pinout and I2C programming interface. Verify that alternative components offer comparable jitter performance and support the required output voltage levels. Check for availability of equivalent frequency plans or reprogrammability options.