SI5338D-B05045-GM

Overview

The SI5338D-B05045-GM is an I2C-programmable quad clock generator utilizing MultiSynth technology. It synthesizes four independent clocks with 0 ppm precision, supporting frequencies up to 710 MHz on differential outputs and lower limits on single-ended formats. The device features a typical phase jitter of 0.7 ps RMS and accepts flexible inputs including external crystals (8–30 MHz), CMOS (5–200 MHz), SSTL/HSTL (5–350 MHz), or differential signals (5–710 MHz). Powered by a single core supply of 1.8, 2.5, or 3.3 V, it operates within a –40 to +85 °C temperature range in a compact 4 x 4 mm QFN-24 package.

Feature Summary

• I2C/SMBus programmability for any-frequency synthesis on four independent output drivers
• Low phase jitter performance with 0.7 ps RMS typical random jitter
• Flexible input reference options: crystal, CMOS, SSTL/HSTL, or differential
• Independent glitchless frequency adjustment in 1 ppm steps and phase adjustment <20 ps

Applications

• PCIe Gen 1/2/3/4 common clock and SRNS compliant systems
• Ethernet switch/router and 1 GbE/10 GbE interfaces
• Processor and FPGA clocking solutions
• Broadcast video/audio timing and telecom line cards

Procurement Notes

Verify the specific B05045 factory configuration code against the official Skyworks ordering guide to ensure correct pre-programmed frequencies and output formats. Confirm that the -GM suffix corresponds to the tray packaging format required for the assembly process. Cross-reference the datasheet revision to validate electrical specifications prior to final design approval.

Selection Notes

Select this component when independent zero-ppm frequency synthesis is required across multiple domains. Ensure the target output voltage levels (1.5, 1.8, 2.5, or 3.3 V) match the load requirements. Verify that the input source type aligns with the available pins (IN1/2, IN3/4, IN5/6) and that the operating temperature range covers the intended environment.

Part Context

This part belongs to the Si5338 family of low-jitter clock generators from Skyworks Solutions. The series replaces discrete crystal oscillators and supports highly configurable output drivers. The specific model integrates a fixed factory configuration, simplifying deployment compared to fully blank programmable variants while retaining the core MultiSynth architecture.

Replacement Considerations

Direct pin-to-pin replacements within the Si5338 family require matching the output count and package. Verify that alternative models support the same maximum input/output frequencies and jitter specifications. Check if the replacement requires reprogramming via ClockBuilder Pro software to replicate the original frequency plan.