SI5338M-B04369-GM

Overview

The Skyworks SI5338M-B04369-GM is a programmable quad clock generator utilizing MultiSynth technology. It synthesizes four independent output clocks with zero ppm frequency accuracy and low phase jitter of 0.7 ps RMS typical. The device supports flexible input references, including differential inputs up to 710 MHz, and offers highly configurable outputs supporting LVPECL, LVDS, CML, HCSL, CMOS, SSTL, and HSTL formats. Operating from a single core supply of 1.8 V, 2.5 V, or 3.3 V, it features independent output voltage control, spread spectrum capability, and I2C/SMBus programming within a 4x4 mm QFN-24 package.

Feature Summary

• MultiSynth technology enables independent, any-frequency synthesis on four differential output drivers with true zero ppm precision.
• Low phase jitter performance of 0.7 ps RMS typical, compliant with PCIe Gen 1/2/3/4 Common Clock and Gen 3 SRNS standards.
• Highly-configurable output drivers support up to four differential outputs, eight single-ended outputs, or mixed configurations.
• Flexible input reference options include external crystals (8–30 MHz), CMOS (5–200 MHz), SSTL/HSTL (5–350 MHz), and differential inputs (5–710 MHz).

Applications

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

Procurement Notes

Verify the specific factory-programmed configuration associated with the B04369 suffix against the target design requirements. Confirm that the required output frequencies and signal formats match the pre-defined NVM settings, as this variant is custom programmed and not field-reconfigurable via standard software tools for initial setup.

Selection Notes

Select this part when a fixed, factory-programmed solution is preferred over user-programmable variants. Ensure the pre-defined output frequencies align with system needs. For designs requiring post-manufacturing frequency adjustments, consider the generic Si5338 family members instead. Verify power supply compatibility with the 1.8 V, 2.5 V, or 3.3 V core voltage options.

Part Context

This component belongs to the Si5338 family of I2C-programmable any-frequency, any-output quad clock generators. The 'B' series indicates factory-programmed Non-Volatile Memory (NVM) configurations, distinguishing it from user-programmable RAM-based variants. It replaces multiple discrete crystal oscillators in high-performance digital systems.

Replacement Considerations

Direct functional replacements require matching the specific factory-programmed frequencies and output formats. Generic Si5338 models may serve as reprogrammable alternatives if the application allows for field configuration using ClockBuilder Pro software.