SI5338B-B04160-GM

Overview

The SI5338B-B04160-GM is a programmable quad clock generator utilizing MultiSynth technology. It synthesizes any frequency up to 710 MHz with zero ppm accuracy on four independent outputs. The device supports LVPECL, LVDS, CML, HCSL, CMOS, SSTL, and HSTL formats. 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 typical phase jitter of 0.7 ps RMS. It operates within a temperature range of -40 °C to +85 °C in a 24-lead QFN package.

Feature Summary

• MultiSynth technology enables independent, any-frequency synthesis on four differential output drivers with true zero ppm precision.
• Supports flexible input references including external crystals (8–30 MHz), CMOS (5–200 MHz), and differential inputs (up to 710 MHz).
• Features highly configurable output drivers supporting LVPECL, LVDS, CML, HCSL, CMOS, SSTL, and HSTL signal formats.
• Includes independent glitchless frequency adjustment in 1 ppm steps and phase adjustment with <20 ps accuracy.

Applications

• PCIe Gen 1/2/3/4 Common Clock and Gen 3 SRNS compliant timing
• Ethernet switch/router and 1 GbE/10 GbE interfaces
• Processor and FPGA clocking systems
• Broadcast video/audio timing distribution

Procurement Notes

Verify the specific factory programming configuration associated with the B04160 suffix against the system requirements. Confirm that the I2C/SMBus interface compatibility matches the host controller logic levels. Ensure the 24-QFN thermal characteristics are accounted for in the PCB layout design.

Selection Notes

Select this component when multiple independent clock frequencies are required from a single source. Verify that the target output format (LVPECL, LVDS, etc.) and frequency range fall within the specified limits. Check if the 45 mA typical core supply current fits the power budget constraints of the application.

Part Context

This part belongs to the Si5338 family of I2C-programmable clock generators. It replaces discrete crystal oscillators and buffers. The 'B' variant typically denotes specific factory-programmed NVM settings for custom frequency plans, distinct from generic unprogrammed versions.

Replacement Considerations

Direct pin-to-pin replacements within the same series require identical NVM programming configurations. Verify that alternative SKUs support the exact same output frequencies and signal formats to ensure functional equivalence without redesign.