SI5334C-B05948-GM

Overview

The SI5334C-B05948-GM is a pin-controlled quad clock generator utilizing MultiSynth technology for independent, any-frequency synthesis on four differential outputs. It supports frequencies up to 350 MHz generally, with select configurations reaching 710 MHz. The device features low phase jitter of 0.7 ps RMS typ and zero ppm frequency accuracy. It accepts external crystals (8–30 MHz) or input clocks (5–710 MHz). Outputs are configurable for LVPECL, LVDS, HCSL, CMOS, SSTL, or HSTL formats with independent supply voltages. Powered by a 1.8 V, 2.5 V, or 3.3 V core supply, it operates within –40 to +85 °C in a 24-QFN package.

Feature Summary

• MultiSynth technology enables independent, any-frequency synthesis on four differential output drivers with 0.7 ps RMS typical jitter.
• Flexible input reference options including external crystal (8–30 MHz), CMOS (5–200 MHz), SSTL/HSTL (5–350 MHz), and differential (5–710 MHz).
• Highly-configurable output drivers support LVPECL, LVDS, HCSL, CMOS, SSTL, and HSTL formats with independent output voltage settings (1.5, 1.8, 2.5, or 3.3 V).
• Pin-controlled configuration with factory-programmable NVM; includes loss-of-lock/signal alarm and optional zero-delay mode.

Applications

• Ethernet switch/router
• PCI Express 2.0/3.0
• Processor and FPGA clocking
• Broadcast video/audio timing
• Telecom line cards

Procurement Notes

Verify the specific suffix 'B05948' against the manufacturer's current ordering guide to confirm the exact frequency plan and output configuration. Factory programming is required for this part number; standard evaluation boards may be needed for design validation. Confirm RoHS compliance and moisture sensitivity levels prior to assembly.

Selection Notes

Select this model when pin control is preferred over I2C programmability. Ensure the required output frequencies fall within the 350 MHz limit or verify if the specific B05948 variant supports the 710 MHz range. Check that the target application can accommodate the 24-QFN package size and thermal requirements. Verify input source compatibility with the supported frequency ranges.

Part Context

This component belongs to the Si5334 family of pin-controlled clock generators from Skyworks Solutions. It is designed for high-performance clock distribution in data communication and computing systems. The 'C' designation typically indicates a specific feature set or revision within the broader Si5334 product line, distinct from other variants like the Si5334M or Si5334K which may include spread spectrum capabilities.

Replacement Considerations

Direct replacements must match the pinout and electrical characteristics of the Si5334 series. Other Si5334 variants (e.g., Si5334M, Si5334K) may serve as functional substitutes if their specific features (like spread spectrum) align with the design requirements. Verify that any substitute supports the same output formats and frequency plans.