SI5338N-B05182-GMR

Overview

The SI5338N-B05182-GMR is a programmable quad clock generator utilizing MultiSynth technology. It synthesizes any frequency on four independent outputs with zero ppm precision. The device supports differential and single-ended formats including LVDS, LVPECL, HCSL, CMOS, SSTL, and HSTL. Maximum output frequencies reach 710 MHz for differential pairs and 200 MHz for CMOS. It operates from a 1.8 V, 2.5 V, or 3.3 V core supply with typical current consumption of 45 mA. Jitter performance is specified at 0.7 ps RMS typ. Configuration is managed via an I2C/SMBus interface.

Feature Summary

• MultiSynth technology enables independent, glitchless frequency synthesis on four drivers with 0 ppm accuracy.
• Supports flexible input references: external crystals (8-30 MHz), CMOS (5-200 MHz), SSTL/HSTL (5-350 MHz), and differential inputs (5-710 MHz).
• Configurable output drivers support LVPECL, LVDS, CML, HCSL, CMOS, SSTL, and HSTL formats with independent voltage levels.
• Features include spread spectrum generation, phase adjustment (<20 ps steps), and loss-of-lock/signal alarms.

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 B05182 factory code against the manufacturer's latest ordering guide to confirm pinout compatibility and pre-programmed NVM content. Confirm package marking matches the datasheet specifications. Ensure ESD handling protocols are followed during assembly due to moisture sensitivity classification.

Selection Notes

Select this variant when high-frequency differential outputs up to 710 MHz are required alongside lower-speed single-ended signals. Validate that the input reference source matches the supported frequency ranges for the chosen format. Check power supply requirements for each output driver (VDDO) as they can be independently set to 1.5 V, 1.8 V, 2.5 V, or 3.3 V.

Part Context

This component belongs to the Si5338 family of I2C-programmable clock generators. The 'N' suffix typically denotes specific factory programming or pinout variations within the series. The 'GMR' suffix indicates tape and reel packaging. It replaces multiple discrete crystal oscillators in complex digital designs.

Replacement Considerations

Direct replacements must match the 24-QFN package and I2C interface. Verify if alternative Skyworks models like SI5338A or SI5338J provide sufficient frequency coverage for the application, noting differences in maximum output frequencies and jitter specs.