SI5338C-B05575-GMR

Overview

The SI5338C-B05575-GMR is a programmable quad clock generator utilizing MultiSynth technology. It synthesizes four independent clocks with zero ppm precision from a single core supply of 1.8, 2.5, or 3.3 V. The device supports differential inputs up to 710 MHz and generates outputs in LVPECL, LVDS, CML, HCSL, CMOS, SSTL, or HSTL formats. Key electrical parameters include a typical RMS jitter of 0.7 ps, a maximum output frequency of 710 MHz for differential signals, and an operating temperature range of –40 to +85 °C. Configuration is managed via an I2C/SMBus interface.

Feature Summary

• MultiSynth technology enables independent, any-frequency synthesis on four output drivers with 0 ppm accuracy.
• Supports flexible input references including external crystals (8–30 MHz), CMOS (5–200 MHz), and differential inputs (up to 710 MHz).
• Features low phase jitter of 0.7 ps RMS typical and glitchless frequency adjustments via independent increment/decrement pins.
• Configurable spread spectrum modulation on any output with frequencies from 5 to 350 MHz.

Applications

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

Procurement Notes

Verify the specific ordering suffix against the manufacturer's current documentation to confirm package type and shipping configuration. Confirm RoHS compliance status and moisture sensitivity level requirements prior to procurement. Ensure the I2C pull-up voltage matches the system bus specifications.

Selection Notes

Select this component when independent frequency synthesis across four outputs is required without crystal oscillators. Verify that the target output format (LVPECL, LVDS, etc.) and frequency range are supported by the specific driver configuration. Ensure the input reference signal meets the slew rate and amplitude requirements for optimal jitter performance.

Part Context

This part belongs to the Si5338 family of I2C-programmable clock generators. It replaces multiple discrete oscillators in high-performance digital systems. The device integrates PLL and MultiSynth stages to provide precise clock distribution with low power consumption and a compact 4x4 mm QFN package.

Replacement Considerations

Direct pin-to-pin replacements within the same family may require reconfiguration of the I2C registers due to different factory-programmed settings. Verify that alternative SKUs support the required output formats and frequencies specified in the design.