SI5338N-B04259-GMR

Overview

The SI5338N-B04259-GMR is a programmable quad clock generator from Skyworks Solutions. It synthesizes four independent output clocks with zero ppm frequency accuracy using MultiSynth technology. The device supports differential and single-ended outputs, including LVPECL, LVDS, HCSL, CMOS, SSTL, and HSTL formats. It operates on a single core supply of 1.8 V, 2.5 V, or 3.3 V and accepts inputs up to 710 MHz. Key electrical parameters include a typical RMS jitter of 0.7 ps, a maximum output frequency of 710 MHz, and an operating temperature range of -40 °C to +85 °C.

Feature Summary

• MultiSynth technology enables independent, any-frequency synthesis on four output drivers with 0 ppm precision.
• Supports flexible input references including external crystals (8-30 MHz), CMOS (up to 200 MHz), and differential inputs (up to 710 MHz).
• Features low phase jitter of 0.7 ps RMS typ and glitchless frequency adjustments via independent increment/decrement features.
• Configurable spread spectrum (SSC) allows modulation rates from 33 to 63 kHz with spreads between 0.5% and 5.0%.

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 current documentation to confirm pin assignments and factory programming configurations. Ensure compatibility with I2C/SMBus interface requirements for system integration. Check for moisture sensitivity levels and recommended reflow soldering profiles during assembly.

Selection Notes

Select this component when multiple independent clock frequencies are required from a single package. Verify that the desired output signal formats (LVPECL, LVDS, etc.) match the available driver configurations. Confirm that the input reference frequency falls within the supported ranges for the chosen mode.

Part Context

This part belongs to the Si5338 family of I2C-programmable clock generators. It replaces discrete crystal oscillators and frequency translators in high-performance digital systems. The device integrates a PLL and MultiSynth stages to provide precise clock distribution.

Replacement Considerations

Public confirmed substitute part numbers are not provided in the source material. Consult the manufacturer's documentation for cross-reference information or updated product line replacements.