SI5338N-B05263-GMR

Overview

The SI5338N-B05263-GMR is a programmable quad clock generator from Skyworks Solutions. It synthesizes four independent output clocks with zero ppm frequency accuracy using MultiSynth technology. The device supports differential and single-ended outputs, including LVPECL, LVDS, HCSL, CMOS, SSTL, and HSTL formats. Maximum input frequency reaches 710 MHz via differential inputs, while outputs support frequencies up to 710 MHz for differential and 200 MHz for CMOS. It operates on a single core supply of 1.8 V, 2.5 V, or 3.3 V, with typical current consumption of 45 mA.

Feature Summary

• MultiSynth technology enables any-frequency synthesis with 0 ppm precision on four independent outputs
• Supports flexible output formats: LVPECL, LVDS, CML, HCSL, CMOS, SSTL, and HSTL
• Low phase jitter performance (0.7 ps RMS typ) compliant with PCIe Gen 1/2/3/4 standards
• I2C/SMBus programmable interface with independent voltage control per output driver

Applications

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

Procurement Notes

Verify the specific ordering suffix B05263 against the manufacturer's official documentation to confirm pre-programmed frequency values and pinout configuration. Ensure the I2C pull-up voltage matches the register settings if operating below 2.5 V. Confirm package type is 24-QFN (4x4 mm).

Selection Notes

Select this component when multiple distinct clock frequencies are required from a single source. Verify that the target output signal format (LVDS, LVPECL, etc.) and voltage levels match the load requirements. Check that the input reference frequency falls within the supported range of 5 MHz to 710 MHz depending on the interface type.

Part Context

This part belongs to the Si5338 family of I2C-programmable clock generators. The 'N' in the model number typically denotes a specific output configuration variant within the series, while 'GMR' indicates tape-and-reel packaging. The device replaces discrete crystal oscillators and frequency translators in complex digital systems.

Replacement Considerations

Direct replacements must be sought from the Si5338 family. Verify that alternative SKUs match the required output count, frequency ranges, and package dimensions. Software configuration files generated by ClockBuilder Pro may need adjustment for different factory-programmed variants.