SI5338N-B04892-GM

Overview

The SI5338N-B04892-GM is a programmable quad clock generator utilizing MultiSynth technology to synthesize any frequency on four independent output drivers. It supports differential and single-ended formats including LVPECL, LVDS, HCSL, CMOS, SSTL, and HSTL. The device operates from a 1.8 V, 2.5 V, or 3.3 V core supply with a typical current of 45 mA. It accepts inputs up to 710 MHz and generates outputs up to 710 MHz (LVDS/LVPECL) or 200 MHz (CMOS). Key electrical parameters include a typical phase jitter of 0.7 ps RMS and an operating temperature range of -40°C to +85°C.

Feature Summary

• I2C/SMBus programmable interface for flexible configuration
• Independent output voltage support: 1.5, 1.8, 2.5, or 3.3 V per driver
• Glitchless frequency adjustment in 1 ppm steps via increment/decrement feature
• Low phase jitter performance of 0.7 ps RMS typical

Applications

• PCIe Gen 1/2/3/4 Common Clock and Gen 3 SRNS compliant systems
• Ethernet switch and 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 pinout assignments and factory programming configurations. Ensure the I2C pull-up voltage requirements are met if operating below 2.5 V. Confirm thermal management strategies for the QFN-24 package under maximum load conditions.

Selection Notes

Select this component when zero ppm frequency accuracy is required across multiple independent clocks. Verify that the desired output signal formats (LVDS, LVPECL, etc.) align with the available driver capabilities. Ensure the input reference frequency falls within the supported ranges for crystals (8-30 MHz) or external clocks (up to 710 MHz).

Part Context

This part belongs to the Si5338 family of low-jitter clock generators. It replaces discrete crystal oscillators and frequency translators. The 'N' suffix typically denotes specific pinout or functional variations within the broader Si5338 series, requiring datasheet verification for exact compatibility with other variants.

Replacement Considerations

Direct replacements must be sought from the Si5338 family. Verify pin-to-pin compatibility and identical electrical specifications, particularly regarding output drive strengths and supply voltages. Software reprogramming using ClockBuilder Pro may be necessary for substitute parts.