SI5338M-B05024-GM

Overview

The SI5338M-B05024-GM is a programmable quad clock generator from Skyworks Solutions, utilizing MultiSynth technology for independent frequency synthesis. It supports four output drivers with configurable formats including LVPECL, LVDS, HCSL, CMOS, SSTL, and HSTL. The device operates on a single core supply of 1.8 V, 2.5 V, or 3.3 V, with individual output supplies ranging from 1.5 V to 3.3 V. Key electrical parameters include a maximum input frequency of 710 MHz, a typical RMS jitter of 0.7 ps, and a core supply current of 45 mA. It features I2C/SMBus control and is housed in a 24-lead QFN package.

Feature Summary

• MultiSynth technology enables zero ppm precision and independent any-frequency synthesis on four outputs.
• Supports flexible input references: external crystals (8–30 MHz), CMOS (5–200 MHz), SSTL/HSTL (5–350 MHz), and differential inputs (5–710 MHz).
• Configurable output drivers support LVPECL/LVDS up to 710 MHz, HCSL up to 250 MHz, and CMOS up to 200 MHz.
• Features independent phase adjustment (<20 ps steps) and glitchless frequency adjustments in 1 ppm steps.

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

Procurement Notes

Verify the specific ordering suffix B05024 against the manufacturer's official documentation to confirm the programmed frequency plan and pinout configuration. Ensure compatibility with the required I2C address and output voltage levels before integration. Confirm that the design accounts for the specified thermal resistance and operating temperature range of -40 to +85 °C.

Selection Notes

Select this component when independent, low-jitter clock synthesis is required for multiple domains with varying voltage and format needs. The Si5338M variant specifically supports independent output enable control via pins, offering hardware-level flexibility compared to software-only variants. Ensure the application requires frequencies within the supported ranges: up to 710 MHz for differential outputs and up to 200 MHz for CMOS outputs.

Part Context

This part belongs to the Si5338 family of I2C-programmable clock generators. The 'M' in the part number typically denotes specific hardware control features, such as independent output enable pins, distinguishing it from other family members like the 'B' or 'A' series which may rely solely on I2C for output control. All variants share the same core MultiSynth architecture and QFN-24 package.

Replacement Considerations

Direct replacements within the Si5338 family require matching the output enable control method (pin vs. I2C) and verifying the programmed frequency plan. Other Skyworks Si53xx series devices may offer similar functionality but often differ in output count, jitter performance, or input/output capabilities. Consult the official datasheet for cross-reference information.