SI5340A-B03499-GM

Overview

The SI5340A-B03499-GM is a programmable clock generator from Skyworks Solutions, belonging to the Si5340 series. It features four outputs capable of generating frequencies up to 1.028 GHz with an input frequency limit of 750 MHz. The device operates within a supply voltage range of 1.71 V to 3.47 V and consumes between 115 mA and 120 mA. Packaged in a QFN-44 format for surface mount installation, it supports output types including CML, HCSL, LVCMOS, LVDS, and LVPECL. The component functions reliably across an operating temperature range of -40°C to +85°C.

Feature Summary

• Four-output architecture supporting any frequency below 1.028 GHz
• Ultra-low jitter performance specified at 90 fs
• MultiSynth technology enabling flexible clock generation
• Supports multiple output interface standards: CML, HCSL, LVCMOS, LVDS, LVPECL

Applications

• Telecommunications infrastructure equipment
• High-speed data communication systems
• Test and measurement instrumentation

Procurement Notes

Verify the specific B03499 factory configuration against the official datasheet before procurement. Confirm that the QFN-44 package dimensions and pinout match the target PCB layout. Ensure the design accounts for the required 1.8 V or 3.3 V power supply rails and the maximum current draw of 120 mA during operation.

Selection Notes

Select this model when four distinct clock signals are required with frequencies exceeding standard limits but remaining under 1.028 GHz. The 90 fs jitter specification makes it suitable for sensitive high-speed serial links. Verify compatibility with existing I2C/SPI programming interfaces if custom frequency plans are needed for the application.

Part Context

This part belongs to the Si5340 family of ultra-low-jitter clock generators. It shares core architectural similarities with other variants like the SI5340A-D-GM but differs in its pre-programmed factory settings defined by the B03499 suffix. The family utilizes MultiSynth technology to provide precise clock synthesis without external components.

Replacement Considerations

Direct functional replacements include other Si5340A variants such as SI5340A-D-GM, provided the fixed output frequencies of the substitute match the system requirements. Cross-model substitution with the Si5341 series requires verification of the increased output count and potential package differences.