SI5338C-B05973-GMR

Overview

The SI5338C-B05973-GMR is a programmable quad clock generator from Skyworks Solutions, utilizing MultiSynth technology to synthesize any frequency on four independent output drivers. It supports differential and single-ended formats including LVPECL, LVDS, HCSL, CMOS, SSTL, and HSTL. The device operates with a core supply of 1.8 V, 2.5 V, or 3.3 V and accepts flexible input references up to 710 MHz. Key electrical parameters include a typical phase jitter of 0.7 ps RMS, 45 mA typical core supply current, and an operating temperature range of –40 °C to +85 °C.

Feature Summary

• MultiSynth technology enables independent, any-frequency synthesis on four differential output drivers with 0 ppm precision.
• Supports PCIe Gen 1/2/3/4 Common Clock and Gen 3 SRNS compliance with low phase jitter of 0.7 ps RMS typ.
• Flexible input reference options: external crystal (8–30 MHz), CMOS (5–200 MHz), SSTL/HSTL (5–350 MHz), and differential (5–710 MHz).
• Highly configurable output drivers supporting up to four differential outputs, eight single-ended outputs, or a combination.

Applications

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

Procurement Notes

Verify the specific ordering suffix B05973 against the manufacturer's official documentation to confirm the exact pre-configured frequency plan and output format. Confirm availability status through authorized distributors as stock levels fluctuate. Ensure I2C/SMBus interface compatibility with the host controller for proper programming via ClockBuilder Pro software.

Selection Notes

Select this component when replacing multiple crystal oscillators or requiring glitchless frequency adjustments in 1 ppm steps. Ensure the required output voltage levels (1.5, 1.8, 2.5, or 3.3 V) match the load requirements. Verify that the input reference frequency falls within the supported ranges for the chosen input pin configuration.

Part Context

This part belongs to the Si5338 family of I2C-programmable any-frequency, any-output quad clock generators. It is designed to replace discrete oscillators and frequency translators in high-performance digital systems. The device integrates a PLL and MultiSynth synthesizers in a compact 4 x 4 mm QFN package.

Replacement Considerations

Public confirmed substitute part numbers are not available in the provided source material. Consult Skyworks Solutions for direct replacements or cross-references based on specific frequency and format requirements.

FAQ

What is the maximum input frequency supported by the Si5338?

The device supports differential inputs up to 710 MHz, SSTL/HSTL inputs up to 350 MHz, and CMOS inputs up to 200 MHz.

Can the Si5338 perform glitchless frequency adjustments?

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

What output signal formats are supported?

The outputs support LVPECL, LVDS, CML, HCSL, CMOS, SSTL, and HSTL formats, with independent voltage selection per driver.