SI5338A-B09174-GM

Overview

The SI5338A-B09174-GM is a programmable quad clock generator utilizing MultiSynth technology. It synthesizes any frequency up to 710 MHz with zero ppm accuracy on four independent outputs. The device features low phase jitter of 0.7 ps RMS typical and supports flexible input references including differential, single-ended, and crystal inputs. It operates from a single core supply of 1.8 V, 2.5 V, or 3.3 V within an ambient temperature range of -40 °C to +85 °C. Configuration is managed via an I2C/SMBus interface.

Feature Summary

• MultiSynth technology enables independent, glitchless frequency synthesis on four output drivers with true zero ppm precision.
• Low phase jitter performance of 0.7 ps RMS typical, compliant with PCIe Gen 1/2/3/4 common clock standards.
• Highly configurable output drivers supporting LVPECL, LVDS, CML, HCSL, CMOS, SSTL, and HSTL formats.
• Integrated spread spectrum capability with adjustable frequency deviation (0.5% to 5.0%) and modulation rates.

Applications

• PCIe Gen 1/2/3/4 systems requiring common clock generation
• Ethernet switch and router timing circuits
• Processor and FPGA clocking solutions
• Broadcast video and audio timing infrastructure

Procurement Notes

Verify the specific B09174 factory code against the manufacturer's current ordering guide to confirm the exact pre-programmed frequency configuration. Ensure the I2C pull-up voltage matches the system logic levels, as register adjustments may be required for voltages below 2.5 V. Confirm package orientation and pin 1 identification during assembly to prevent installation errors.

Selection Notes

Select this component when independent frequency synthesis across multiple domains is required without external oscillators. Validate that the target output frequencies fall within the supported ranges for the chosen signal format, such as 710 MHz for LVDS/LVPECL or 200 MHz for CMOS. Check thermal resistance specifications if operating at maximum load currents to ensure junction temperatures remain within limits.

Part Context

This part belongs to the Si5338 family of I2C-programmable clock generators. The 'A' suffix typically denotes the high-performance variant capable of frequencies up to 710 MHz. The 'GM' suffix indicates the 24-lead QFN package form factor. This series replaces discrete crystal oscillators in complex digital systems.

Replacement Considerations

Direct replacements must match the 24-QFN footprint and support I2C programming. Verify that alternative devices offer comparable jitter performance and support the required output voltage levels. Ensure the substitute component supports the necessary input reference types and frequency ranges for the specific application design.