SI5338H-B04521-GMR

Overview

The SI5338H-B04521-GMR is a programmable quad clock generator from Skyworks Solutions, utilizing MultiSynth technology to synthesize any frequency on four independent 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, zero ppm frequency accuracy, and flexible input options including external crystals (8–30 MHz), CMOS (5–200 MHz), SSTL/HSTL (5–350 MHz), and differential inputs (5–710 MHz). Powered by a single core supply of 1.8, 2.5, or 3.3 V, it operates within a temperature range of –40 to +85 °C in a 24-lead QFN package.

Feature Summary

• MultiSynth™ technology enables independent, any-frequency synthesis on four output drivers with 0 ppm precision.
• Low phase jitter performance of 0.7 ps RMS typical across LVPECL, LVDS, CML, and HCSL formats.
• Flexible input reference support for external crystals, CMOS, SSTL/HSTL, and differential signals up to 710 MHz.
• Independent output voltage configuration per driver at 1.5, 1.8, 2.5, or 3.3 V.

Applications

• PCIe Gen 1/2/3/4 Common Clock and Gen 3 SRNS compliant timing
• Ethernet switch/router clocking
• Processor and FPGA clocking
• Broadcast video/audio timing

Procurement Notes

Verify the specific ordering suffix B04521 against the manufacturer's current documentation to confirm factory-programmed parameters. Ensure compatibility with I2C/SMBus interface requirements and check for moisture sensitivity handling instructions during assembly.

Selection Notes

Select this component when designing systems requiring multiple independent clock frequencies from a single IC. Confirm that the required output signal formats (LVPECL, LVDS, HCSL, etc.) and voltage levels match the device's configurable output drivers. Validate input source availability against supported frequency ranges.

Part Context

This part belongs to the Si5338 family of high-performance, low-jitter clock generators. The family shares common architectural features such as MultiSynth technology and I2C programmability, but varies in pre-programmed frequencies and output configurations based on specific application needs.

Replacement Considerations

Consult the official datasheet for cross-reference information. Verify pinout compatibility and electrical specifications before substituting with other Si533x series parts or competitor devices.