SI5338A-B08772-GMR

Overview

The SI5338A-B08772-GMR is a programmable quad clock generator utilizing MultiSynth technology. It synthesizes any frequency on four independent output drivers with 0 ppm precision and 0.7 ps RMS typical jitter. The device supports differential inputs up to 710 MHz and outputs in LVPECL, LVDS, CML, HCSL, CMOS, SSTL, or HSTL formats. It operates from a single core supply of 1.8 V, 2.5 V, or 3.3 V, drawing 45 mA typically. Key features include glitchless frequency adjustment in 1 ppm steps, independent phase adjustment, configurable spread spectrum, and I2C/SMBus programming.

Feature Summary

• MultiSynth technology enables independent, any-frequency synthesis on four differential output drivers with true zero ppm accuracy.
• Low phase jitter of 0.7 ps RMS typical, compliant with PCIe Gen 1/2/3/4 Common Clock and Gen 3 SRNS standards.
• Flexible input reference options including external crystals (8-30 MHz), CMOS (5-200 MHz), and differential inputs (5-710 MHz).
• Independent frequency increment/decrement for glitchless adjustments and highly configurable spread spectrum on any output.

Applications

• PCIe Gen 1/2/3/4 systems
• Ethernet switch/router clocking
• Processor and FPGA clocking
• Broadcast video/audio timing
• Telecom line cards

Procurement Notes

Verify the specific ordering suffix against the manufacturer's official documentation to confirm configuration details such as output enable control methods or pre-programmed frequencies. Ensure compatibility with the required I2C bus voltage levels and check for moisture sensitivity handling requirements during storage and assembly.

Selection Notes

Select this component when designing systems requiring low-jitter, flexible clock generation for high-speed interfaces like PCIe or Ethernet. Consider the available output formats (LVPECL, LVDS, etc.) and supply voltages (1.8V, 2.5V, 3.3V) to match the target load. Use ClockBuilder Pro software for optimal register configuration and jitter performance validation.

Part Context

This part belongs to the Si5338 family of I2C-programmable any-frequency, any-output quad clock generators. It is designed to replace multiple crystal oscillators or operate as a frequency translator. The device integrates a PLL and MultiSynth dividers to generate precise clocks from various input references, packaged in a compact 4x4 mm QFN.

Replacement Considerations

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