SI5338Q-B05247-GM

Application Specific Clock/Timing Overview

The SI5338Q-B05247-GM is a programmable quad clock generator from Skyworks Solutions. It utilizes MultiSynth technology to synthesize any frequency on four independent output drivers with zero ppm precision. The device supports differential and single-ended outputs including LVPECL, LVDS, HCSL, CMOS, SSTL, and HSTL. Core supply voltage ranges from 1.71 V to 3.63 V, with typical operating current of 45 mA. Maximum input frequency reaches 710 MHz via differential inputs, while maximum output frequencies vary by format up to 710 MHz. Typical phase jitter is 0.7 ps RMS.

Application Specific Clock/Timing Feature Summary

• MultiSynth technology enables independent, any-frequency synthesis on four output drivers
• Supports flexible input references: external crystal (8-30 MHz), CMOS (5-200 MHz), SSTL/HSTL (5-350 MHz), and differential (5-710 MHz)
• Highly configurable output drivers supporting LVPECL, LVDS, HCSL, CMOS, SSTL, and HSTL formats
• Independent frequency increment/decrement feature allows glitchless adjustments in 1 ppm steps

Application Specific Clock/Timing Applications

• PCIe Gen 1/2/3/4 Common Clock and Gen 3 SRNS compliant systems
• Ethernet switch/router timing
• Processor and FPGA clocking
• Broadcast video/audio timing
• Telecom line cards and MSAN/DSLAM/PON applications

Application Specific Clock/Timing Procurement Notes

Verify the specific factory-programmed configuration associated with the B05247 suffix against the design requirements using ClockBuilder Pro software. Confirm that the QFN-24 package dimensions and thermal characteristics align with the PCB land pattern specifications provided in the datasheet.

Application Specific Clock/Timing Selection Notes

Select this component when low jitter synthesis (0.7 ps RMS typ) and high precision (0 ppm) are required for multiple clock domains. Ensure the application supports the I2C/SMBus programming interface or requires OTP memory programming. Verify that the output voltage levels (1.5, 1.8, 2.5, or 3.3 V) match the load requirements.

Application Specific Clock/Timing Part Context

This part belongs to the Si5338 family of I2C-programmable clock generators. It replaces multiple discrete oscillators and frequency translators. The 'Q' suffix typically denotes automotive qualification standards, though specific reliability data should be verified in the full product specification.

Application Specific Clock/Timing Replacement Considerations

Direct pin-to-pin replacements within the same family include other Si5338 variants with different factory configurations. Ensure the replacement part supports the required output formats and frequency ranges.