SI5338A-B01225-GMR

Overview

The SI5338A-B01225-GMR is a programmable quad clock generator utilizing MultiSynth technology for independent, any-frequency synthesis on four output drivers. It supports differential and single-ended outputs with frequencies up to 710 MHz. The device features low phase jitter of 0.7 ps RMS typical, true zero ppm frequency accuracy, and flexible input references including external crystals (8–30 MHz), CMOS, SSTL/HSTL, and differential inputs. It operates from a single core supply of 1.8 V, 2.5 V, or 3.3 V, with independent output driver voltages. Configuration is managed via an I2C/SMBus interface.

Feature Summary

• MultiSynth technology enables independent, any-frequency synthesis on four differential output drivers with 0 ppm precision.
• Low phase jitter of 0.7 ps RMS typical, compliant with PCIe Gen 1/2/3/4 Common Clock and Gen 3 SRNS standards.
• Flexible input reference options: External crystal (8–30 MHz), CMOS (5–200 MHz), SSTL/HSTL (5–350 MHz), and Differential (5–710 MHz).
• Independently configurable outputs support LVPECL/LVDS (up to 710 MHz), HCSL, CMOS, and SSTL/HSTL formats with independent voltage levels.

Applications

• Ethernet switch/router
• PCIe Gen1/2/3/4 systems
• Broadcast video/audio timing
• Processor and FPGA clocking
• MSAN/DSLAM/PON

Procurement Notes

Verify the specific ordering suffix GMR indicates reel packaging when sourcing this component. Confirm that the internal configuration code B01225 matches the required frequency plan, as this part number represents a factory-programmed variant rather than a blank programmable device. Ensure compatibility with the intended I2C bus voltage levels during integration.

Selection Notes

Select this model when fixed, factory-programmed clock frequencies are required without field reconfiguration. The B01225 suffix denotes specific output frequencies and formats pre-loaded at the factory. For designs requiring post-manufacturing frequency changes, a generic programmable version without the numeric suffix should be considered instead. Verify package availability in QFN-24.

Part Context

This component belongs to the Si5338 family of high-performance, low-jitter clock generators. The Si5338 series is designed to replace multiple discrete oscillators by synthesizing independent clocks from a single reference. The 'A' designation typically refers to the specific silicon revision or performance grade within the Skyworks portfolio.

Replacement Considerations

Direct replacements must match the Si5338 architecture and QFN-24 package. Generic programmable Si5338 variants may serve as functional substitutes if the specific B01225 frequency plan can be replicated via ClockBuilder Pro software programming.