SI5338L-B05675-GM

Overview

The SI5338L-B05675-GM is a programmable clock generator from Skyworks Solutions, utilizing MultiSynth technology to synthesize any frequency on four output drivers with 0 ppm precision. It operates within a core supply voltage range of 1.71 V to 3.63 V and supports output voltages of 1.5, 1.8, 2.5, or 3.3 V per driver. The device features a typical phase jitter of 0.7 ps RMS and supports input frequencies up to 710 MHz. Outputs include LVPECL, LVDS, HCSL, CMOS, SSTL, and HSTL formats. It is housed in a 4 x 4 mm QFN-24 package and functions across an operating temperature range of –40 °C to +85 °C.

Feature Summary

• MultiSynth™ technology enables independent, any-frequency synthesis on four differential output drivers with zero ppm accuracy.
• Low phase jitter performance of 0.7 ps RMS typical, compliant with PCIe Gen 1/2/3/4 Common Clock standards.
• Flexible input reference options including external crystals (8–30 MHz), CMOS (5–200 MHz), and differential inputs (up to 710 MHz).
• Independent output voltage configuration per driver supporting 1.5, 1.8, 2.5, or 3.3 V levels.

Applications

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

Procurement Notes

Verify the specific ordering suffix against the manufacturer's current documentation to confirm pinout compatibility and factory programming settings. Confirm that the I2C pull-up voltage requirements align with the system bus voltage, particularly if operating below 2.5 V. Ensure ESD protection measures are implemented during handling due to the sensitivity of the CMOS inputs.

Selection Notes

Select this component when multiple independent clock frequencies are required from a single source with high precision. Verify that the desired output signal formats (LVPECL, LVDS, etc.) match the load requirements of the destination devices. Check that the input reference frequency falls within the supported ranges for the chosen mode, such as differential inputs up to 710 MHz.

Part Context

This part belongs to the Si5338 family of I2C-programmable quad clock generators. The 'L' suffix typically denotes a specific factory-programmed configuration variant within the series, distinct from generic unprogrammed versions. It shares the same physical footprint and electrical characteristics as other Si5338 variants but contains unique internal register settings.

Replacement Considerations

Direct replacements must be from the Si5338 family with compatible pinouts. Verify that substitute parts support the same output voltage levels and jitter specifications. Generic Si5338 devices may require reprogramming via I2C to match the specific frequency and format configurations of the SI5338L-B05675-GM.

FAQ

What is the maximum input frequency supported by the SI5338L-B05675-GM?

The device supports differential input frequencies up to 710 MHz. Single-ended CMOS inputs are supported up to 200 MHz.

Can the output voltages be configured independently for each driver?

Yes, each of the four output drivers can be independently configured to operate at 1.5, 1.8, 2.5, or 3.3 V.

Is the device compliant with PCIe standards?

Yes, it is compliant with PCIe Gen 1/2/3/4 Common Clock and Gen 3 SRNS standards.