SI5338N-B05577-GMR

Overview

The Skyworks SI5338N-B05577-GMR is a programmable quad clock generator utilizing MultiSynth technology. It synthesizes any frequency on four independent outputs with zero ppm precision, supporting LVPECL, LVDS, CML, HCSL, CMOS, SSTL, and HSTL formats. The device accepts differential inputs up to 710 MHz or single-ended inputs up to 200 MHz. Key electrical parameters include a core supply voltage of 1.8 V, 2.5 V, or 3.3 V, typical operating current of 45 mA, and RMS jitter as low as 0.7 ps. It operates within a temperature range of -40°C to +85°C in a 24-lead QFN package.

Feature Summary

• MultiSynth technology enables independent, glitchless frequency synthesis on four output drivers with true zero ppm accuracy.
• Flexible input options support external crystals (8–30 MHz), CMOS (5–200 MHz), and differential signals (up to 710 MHz).
• Configurable spread spectrum generation supports frequencies from 5 to 350 MHz with modulation rates from 33 to 63 kHz.
• Independent phase adjustment allows step sizes under 20 ps for each output driver.

Applications

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

Procurement Notes

Verify the specific factory configuration code embedded in the suffix B05577 against the official Skyworks ordering guide to ensure correct register initialization. Confirm that the GMR suffix matches the required reel packaging quantity for the production line. Cross-reference the RoHS compliance status with the latest datasheet revision before finalizing procurement specifications.

Selection Notes

Select this component when designs require four independent clock outputs with varying frequencies and signal formats. Ensure the application utilizes a differential input source if frequencies exceeding 200 MHz are necessary. Verify that the target system can accommodate the 4 x 4 mm QFN-24 footprint and provides adequate thermal dissipation for the specified power consumption levels.

Part Context

This part belongs to the Si5338 family of I2C-programmable clock generators. The 'N' designation typically indicates a specific factory pre-programmed configuration variant within the broader Si5338 product line. The device replaces multiple discrete crystal oscillators by providing flexible frequency translation and distribution capabilities.

Replacement Considerations

Direct pin-to-pin replacements within the same package must be selected from the Si5338 family. Verify that alternative SKUs support the identical input/output frequency requirements and signal format configurations defined by the B05577 factory settings.