SI5338N-B05316-GMR

Overview

The SI5338N-B05316-GMR is a programmable quad clock generator from Skyworks Solutions. It utilizes MultiSynth technology to synthesize any frequency on four independent output drivers with 0 ppm precision. The device supports flexible input references, including external crystals (8–30 MHz), CMOS (up to 200 MHz), and differential inputs (up to 710 MHz). Outputs are configurable for LVPECL, LVDS, HCSL, CMOS, SSTL, or HSTL formats at voltages of 1.5, 1.8, 2.5, or 3.3 V. Key electrical parameters include a core supply voltage range of 1.71 V to 3.63 V, typical operating current of 45 mA, and low phase jitter of 0.7 ps RMS. It operates within an ambient temperature range of –40 °C to +85 °C.

Feature Summary

• I2C/SMBus programmable interface with ClockBuilder Pro software support
• Independent glitchless frequency adjustment in 1 ppm steps
• Supports PCIe Gen 1/2/3/4 Common Clock and Gen 3 SRNS compliance
• Configurable spread spectrum (SSC) with modulation rates from 33 to 63 kHz

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 ordering suffix B05316 against the manufacturer's official documentation to confirm the programmed configuration, as this suffix defines the factory-set register values. Ensure the I2C pull-up voltage requirements are met if the bus voltage is below 2.5 V. Confirm package availability and moisture sensitivity level handling procedures prior to assembly.

Selection Notes

Select this component when replacing multiple discrete oscillators with a single programmable source. Ensure the required output frequencies fall within the supported ranges: up to 710 MHz for differential outputs (LVPECL/LVDS/CML) and up to 350 MHz for single-ended outputs (CMOS/SSTL/HSTL). Verify that the input reference signal matches one of the supported formats and frequency ranges.

Part Context

This part belongs to the Si5338 family of low-jitter clock generators. It shares the same 24-lead QFN (4x4 mm) package and core architecture as other variants in the series. The primary distinction lies in the pre-programmed configuration data stored in the internal NVM, which determines the default output frequencies and formats upon power-up.

Replacement Considerations

Direct pin-to-pin replacements within the Si5338 family may require reprogramming via I2C if the target part has a different factory configuration. Verify that the replacement part supports the same output voltage levels and signal formats required by the design.