SI5338N-B04781-GMR

Overview

The SI5338N-B04781-GMR is a programmable quad clock generator manufactured by Skyworks Solutions. It utilizes MultiSynth technology to synthesize four independent output clocks with zero ppm frequency accuracy. The device supports flexible input references, including differential inputs up to 710 MHz and single-ended CMOS inputs up to 200 MHz. Outputs are configurable for various signal formats such as LVDS, LVPECL, HCSL, and CMOS, with individual supply voltages of 1.5, 1.8, 2.5, or 3.3 V per driver. It operates on a single core supply (1.8, 2.5, or 3.3 V) with a typical current of 45 mA, housed in a 24-lead QFN package.

Feature Summary

• MultiSynth™ technology enables independent, any-frequency synthesis on four output drivers with 0 ppm precision.
• Low phase jitter performance of 0.7 ps RMS typical.
• Flexible input support: external crystals (8–30 MHz), CMOS (5–200 MHz), SSTL/HSTL (5–350 MHz), and differential (5–710 MHz).
• Independent output voltage configuration per driver (1.5, 1.8, 2.5, or 3.3 V) and glitchless frequency adjustment.

Applications

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

Procurement Notes

Verify the specific ordering suffix against the manufacturer's official documentation to confirm pinout assignments and factory programming configurations. Ensure compatibility with I2C/SMBus interface requirements and check for moisture sensitivity levels prior to surface mount assembly.

Selection Notes

Select this component when low jitter (<1 ps RMS) and high precision (0 ppm) are required for multiple clock domains. Confirm that the target application supports the available output formats (LVDS, LVPECL, HCSL, etc.) and that the power supply rails match the independent VDDOx requirements for each driver.

Part Context

This part belongs to the Si5338 family of I2C-programmable clock generators. It is designed to replace multiple discrete crystal oscillators in complex digital systems. The 'N' suffix typically denotes specific pinout or functional variations within the broader Si5338 series, requiring datasheet verification for exact electrical mapping.

Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided source material. Verify pin-to-pin compatibility and register-level functionality with alternative Skyworks Si533x variants before substitution.