SI5338A-B02499-GMR

Overview

The SI5338A-B02499-GMR is a programmable quad clock generator utilizing MultiSynth technology. It synthesizes four independent clocks with zero ppm accuracy, supporting frequencies up to 710 MHz on differential outputs and 350 MHz on single-ended formats. The device operates from a 1.8 V, 2.5 V, or 3.3 V core supply with a typical current of 45 mA. Key electrical parameters include a typical phase jitter of 0.7 ps RMS and an input frequency range extending to 710 MHz for differential sources. It features I2C/SMBus programming, configurable spread spectrum modulation, and independent output voltage levels.

Feature Summary

• MultiSynth technology enables independent, any-frequency synthesis on four output drivers with true zero ppm precision.
• Low phase jitter performance of 0.7 ps RMS typ, compliant with PCIe Gen 1/2/3/4 Common Clock standards.
• Flexible input reference options including external crystals (8-30 MHz), CMOS, SSTL/HSTL, and differential inputs up to 710 MHz.
• Highly configurable output drivers supporting LVPECL, LVDS, CML, HCSL, CMOS, SSTL, and HSTL formats with independent voltage selection.

Applications

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

Procurement Notes

Verify the specific factory configuration code 'B02499' against the manufacturer's ordering guide to ensure the correct pre-programmed frequency plan. Confirm package type is 24-QFN and check RoHS compliance status in the latest datasheet revision before procurement.

Selection Notes

Select this component when designing systems requiring multiple independent clock frequencies derived from a single reference source. Ensure the required output voltage levels (1.5V, 1.8V, 2.5V, or 3.3V) match the load requirements. Verify that the input signal format and frequency fall within the supported ranges defined in the electrical specifications table.

Part Context

This part belongs to the Si5338 family of I2C-programmable clock generators. The suffix 'GMR' indicates a tape-and-reel packaging format suitable for automated surface-mount assembly. The 'A' designation typically refers to the specific silicon revision or performance grade within the product line.

Replacement Considerations

Direct pin-to-pin replacements within the same family include other Si5338 variants such as SI5338A-B-GM or SI5338Q-B-GMR. However, these generic parts require custom programming via ClockBuilder Pro software to replicate the specific frequency plan of the B02499 variant.