SI5338M-B05075-GMR

Overview

The SI5338M-B05075-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 precision, 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 for high-speed applications like PCIe Gen 3/4.
• Flexible input reference support: external crystal, CMOS, SSTL/HSTL, and differential signals.
• Independent output voltage configuration per driver (1.5, 1.8, 2.5, or 3.3 V) and format (LVPECL, LVDS, HCSL, CMOS, etc.).

Applications

• PCIe Gen 1/2/3/4 Common Clock and Gen 3 SRNS compliant systems
• Ethernet switch/router and 1 GbE/10 GbE interfaces
• Processor and FPGA clocking
• Broadcast video/audio timing
• Telecom line cards and MSAN/DSLAM/PON equipment

Procurement Notes

Verify the specific ordering suffix B05075 against the manufacturer's current datasheet to confirm factory-programmed parameters. Ensure I2C pull-up voltages are compatible with the selected VDDI2C level, as register adjustments may be required for voltages below 2.5 V. Confirm ESD handling procedures due to sensitivity ratings.

Selection Notes

Select this component when multiple independent clock frequencies with low jitter are required from a single IC. Ensure the input source matches the supported formats (differential vs. single-ended) and frequency ranges. Verify that the required output signal formats (LVDS, LVPECL, CMOS, etc.) align with the available driver configurations and supply voltages.

Part Context

The SI5338 series replaces multiple discrete oscillators, reducing board space and power consumption. The 'M' suffix typically denotes a specific output configuration variant within the Si5338 family, while 'GMR' indicates tape-and-reel packaging. This part integrates PLL and MultiSynth stages for precise frequency generation.

Replacement Considerations

Direct pin-to-pin replacements within the Si5338 family (e.g., SI5338A, SI5338B, SI5338Q) require verification of output frequency limits and jitter specifications. Ensure the substitute part supports the same I2C programming interface and output drive strengths.