SI5338A-B06038-GMR

Overview

The SI5338A-B06038-GMR is an I2C-programmable quad clock generator utilizing MultiSynth technology. It synthesizes any frequency on four independent outputs with zero ppm precision and typical phase jitter of 0.7 ps RMS. The device supports differential (LVPECL, LVDS, CML) and single-ended (CMOS, HCSL, SSTL/HSTL) formats. Operating from a 1.8 V, 2.5 V, or 3.3 V core supply, it accepts inputs up to 710 MHz and generates outputs up to 710 MHz in a 4x4 mm QFN-24 package.

Feature Summary

• MultiSynth technology enables independent, any-frequency synthesis on four output drivers with 0 ppm accuracy.
• Low phase jitter performance of 0.7 ps RMS typical for GbE and PCIe applications.
• Flexible input options including external crystals (8–30 MHz), CMOS, SSTL/HSTL, and differential clocks up to 710 MHz.
• Configurable spread spectrum (SSC) on any output with adjustable deviation and modulation rate.

Applications

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

Procurement Notes

Verify the specific B06038 factory preset configuration against design requirements using ClockBuilder Pro software. Confirm the GMR suffix indicates tape-and-reel packaging suitable for automated surface-mount assembly processes.

Selection Notes

Select this variant for designs requiring high-frequency synthesis up to 710 MHz with low jitter. Ensure the target application utilizes differential outputs if sub-1 ps jitter performance is critical, as single-ended configurations may exhibit increased jitter values.

Part Context

This component belongs to the Si5338 family of programmable clock generators. It serves as a replacement for multiple discrete crystal oscillators by providing four independent clock signals from a single reference source within a compact footprint.

Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided documentation. Verify pinout compatibility and electrical specifications before considering alternative Skyworks models such as the SI5338Q or SI5338B series.

FAQ

What is the maximum input frequency supported by the SI5338A?

The device supports a maximum differential input frequency of 710 MHz.

Can the output voltage levels be configured independently?

Yes, each output driver supports independent voltage levels of 1.5 V, 1.8 V, 2.5 V, or 3.3 V.

Is glitchless frequency adjustment supported?

Yes, the device features an independent frequency increment/decrement capability allowing glitchless adjustments in 1 ppm steps.