SI5338N-B04992-GM

Overview

The SI5338N-B04992-GM 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. The device operates on a single core supply of 1.8 V, 2.5 V, or 3.3 V, drawing a typical current of 45 mA. Key electrical parameters include a maximum input frequency of 710 MHz, a typical phase jitter of 0.7 ps RMS, and an operating temperature range of -40 °C to +85 °C. Configuration is managed via an I²C/SMBus interface.

Feature Summary

• MultiSynth™ Technology: Enables zero ppm precision synthesis for four independent clocks.
• Flexible Output Drivers: Supports LVPECL, LVDS, CML, HCSL, CMOS, SSTL, and HSTL formats.
• Low Jitter Performance: Achieves 0.7 ps RMS typical random jitter.
• Glitchless Frequency Adjustment: Independent increment/decrement feature allows adjustments in 1 ppm steps.

Applications

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

Procurement Notes

Verify the specific ordering suffix against the manufacturer's official documentation to confirm pinout assignments and factory programming configurations. Ensure compatibility with the required I²C bus voltage levels (1.71 V to 3.63 V) and check for moisture sensitivity handling requirements during storage and assembly.

Selection Notes

Select this component when multiple distinct clock frequencies are required from a single package. Validate that the target output signal format (LVDS, LVPECL, etc.) and voltage levels (1.5 V to 3.3 V) match the load requirements. Confirm that the input reference source (crystal, CMOS, or differential) falls within the supported frequency ranges specified in the datasheet.

Part Context

This part belongs to the Si5338 family of I²C-programmable clock generators. It replaces discrete crystal oscillators and frequency translators. The 'N' suffix typically denotes specific pinout or configuration variants within the series, while 'GMR' indicates tape-and-reel packaging. Programming is facilitated by Skyworks' ClockBuilder Pro software.

Replacement Considerations

Direct replacements must be sought from the Si5338 family. Verify that alternative part numbers support the same number of outputs, maximum frequency limits, and package dimensions (4x4 mm QFN-24). Cross-reference the internal NVM configuration data if migrating between different suffixes.