SI5338N-B06121-GMR

Overview

The SI5338N-B06121-GMR is a programmable quad clock generator from Skyworks Solutions. It synthesizes any frequency on four output drivers using MultiSynth technology, achieving zero ppm precision. The device supports differential and single-ended outputs with independent voltage configurations (1.5V to 3.3V). Key electrical parameters include a core supply range of 1.71V to 3.63V, typical operating current of 45mA, and maximum input frequency up to 710MHz. It features low phase jitter of 0.7ps RMS typ and operates within a temperature range of -40°C to +85°C in a 24-QFN package.

Feature Summary

• MultiSynth™ technology enables independent, any-frequency synthesis on four output drivers with 0 ppm precision.
• Flexible input reference options including external crystals (8-30 MHz), CMOS (5-200 MHz), SSTL/HSTL (5-350 MHz), and differential inputs (5-710 MHz).
• Independent output voltage support per driver at 1.5, 1.8, 2.5, or 3.3 V.
• Glitchless frequency adjustments via independent increment/decrement feature in 1 ppm steps.

Applications

• PCIe Gen 1/2/3/4 Common Clock and Gen 3 SRNS compliant systems.
• Ethernet switch/router timing solutions.
• Processor and FPGA clocking architectures.
• Broadcast video/audio timing distribution.

Procurement Notes

Verify the specific ordering suffix against the manufacturer's latest documentation to confirm pinout and configuration settings. Ensure I2C pull-up voltages are compatible with the selected bus standard, particularly when operating below 2.5V. Confirm thermal management requirements for the QFN-24 package under maximum load conditions.

Selection Notes

Select this component for designs requiring multiple independent clock frequencies from a single source. Ensure the required output signal formats (LVPECL, LVDS, HCSL, CMOS, etc.) align with the available driver capabilities. Verify that the input reference frequency falls within the supported ranges for the chosen input mode.

Part Context

This part belongs to the Si5338 family of I2C-programmable clock generators. It replaces discrete crystal oscillators and frequency translators. The 'N' suffix typically denotes a specific factory programming configuration for output frequencies and formats, distinct from generic unprogrammed variants.

Replacement Considerations

Direct replacements within the same family require matching the output count and frequency specifications. Verify if alternative suffixes provide identical pre-programmed configurations or if reprogramming is necessary. Check for package compatibility as all Si5338 variants utilize the 24-QFN form factor.