SI5338C-B11301-GM

Overview

The SI5338C-B11301-GM is a programmable quad clock generator from Skyworks Solutions, utilizing MultiSynth technology to synthesize any frequency on four independent output drivers. It supports core supply voltages of 1.8 V, 2.5 V, or 3.3 V and operates within an ambient temperature range of –40 °C to +85 °C. The device features low phase jitter of 0.7 ps RMS typical, with differential outputs supporting frequencies up to 710 MHz (LVPECL/LVDS/CML) and single-ended outputs up to 350 MHz (SSTL/HSTL). Input references include external crystals (8–30 MHz), CMOS (5–200 MHz), SSTL/HSTL (5–350 MHz), and differential signals (5–710 MHz).

Feature Summary

• MultiSynth™ technology enables independent, any-frequency synthesis on four differential output drivers with zero ppm precision.
• Supports PCIe Gen 1/2/3/4 Common Clock and Gen 3 SRNS compliance.
• Highly configurable output drivers allow up to four differential outputs, eight single-ended outputs, or a combination.
• Independent frequency increment/decrement feature enables glitchless frequency adjustments in 1 ppm steps.

Applications

• Ethernet switch/router
• PCIe Gen1/2/3/4
• Broadcast video/audio timing
• Processor and FPGA clocking
• MSAN/DSLAM/PON

Procurement Notes

Verify the specific ordering suffix against the manufacturer's current documentation to confirm package type, tape-and-reel specifications, and environmental compliance status. Ensure that the I2C pull-up voltage requirements align with the system design, particularly if operating below 2.5 V.

Selection Notes

Select this component when multiple independent clock frequencies are required from a single IC. Consider the output driver formats (LVPECL, LVDS, HCSL, CMOS, etc.) and their respective voltage levels (1.5 V, 1.8 V, 2.5 V, 3.3 V) to match the load requirements. Verify input reference compatibility for crystal or external clock sources.

Part Context

The SI5338 series replaces up to four different frequency crystal oscillators. It is part of the Si533x family designed for low-power, high-performance clock generation. The device integrates a Phase Frequency Detector, Loop Filter, VCO, and MultiSynth stages within a 4 x 4 mm QFN-24 package.

Replacement Considerations

Consult the official datasheet for cross-reference information. Other variants within the Si5338 family may offer different jitter performance, output configurations, or input capabilities. Verify pinout and electrical specifications before substitution.

FAQ

What is the maximum differential input frequency supported by the SI5338?

The maximum differential input frequency supported is 710 MHz.

Can the SI5338 perform glitchless frequency adjustments?

Yes, it features an independent frequency increment/decrement capability that allows glitchless adjustments in 1 ppm steps.

What output formats are supported by the device?

The device supports LVPECL, LVDS, CML, HCSL, CMOS, SSTL, and HSTL output formats.