SI5338C-B04461-GMR

Overview

The SI5338C-B04461-GMR is a programmable quad clock generator from Skyworks Solutions. It synthesizes four independent output clocks with zero ppm frequency accuracy using MultiSynth technology. The device supports differential and single-ended outputs, including LVPECL, LVDS, HCSL, CMOS, SSTL, and HSTL formats. It operates on a single core supply of 1.8 V, 2.5 V, or 3.3 V, with individual output supplies up to 3.63 V. Key electrical parameters include a maximum input frequency of 710 MHz, typical phase jitter of 0.7 ps RMS, and an operating temperature range of -40 °C to +85 °C.

Feature Summary

• MultiSynth technology enables any-frequency synthesis with 0 ppm precision on four independent drivers.
• Flexible output configurations support up to four differential or eight single-ended clocks in mixed formats.
• Low phase jitter performance of 0.7 ps RMS typical, compliant with PCIe Gen 1/2/3/4 standards.
• Programmable via I2C/SMBus interface with features for glitchless frequency adjustment and spread spectrum.

Applications

• PCIe Gen 1/2/3/4 common clock and SRNS applications
• Ethernet switch and router timing
• Processor and FPGA clocking systems
• Broadcast video and audio timing distribution

Procurement Notes

Verify the specific ordering suffix against the manufacturer's current datasheet to confirm factory programming and package type. Confirm that the I2C pull-up voltage requirements align with the system design, particularly if operating below 2.5 V. Ensure ESD handling procedures are followed due to the sensitivity of the CMOS inputs and outputs.

Selection Notes

Select this component when multiple distinct clock frequencies are required from a single source. Verify that the desired output signal formats (LVPECL, LVDS, etc.) match the available driver capabilities. Check that the input reference frequency falls within the supported ranges for crystals or external clocks. Consider the power consumption differences between various output load conditions and formats.

Part Context

This part belongs to the Si5338 family of I2C-programmable clock generators. It replaces discrete crystal oscillators and frequency translators. The 'C' in the part number typically denotes a specific factory-programmed configuration variant within the broader Si5338 series, which also includes variants like the Si5338Q and Si5338K.

Replacement Considerations

Direct replacements must be sought from the Si5338 family. Verify pin compatibility and electrical specifications such as supply voltage and jitter performance. Note that different suffixes may indicate pre-programmed frequencies rather than functional hardware differences.