SI5338B-B04135-GM

Overview

The SI5338B-B04135-GM is a programmable quad clock generator utilizing MultiSynth technology. It synthesizes four independent clocks with zero ppm accuracy, supporting frequencies up to 710 MHz on differential outputs and 350 MHz on single-ended formats. The device operates from a 1.8 V, 2.5 V, or 3.3 V core supply with a typical current of 45 mA. Key electrical parameters include a typical phase jitter of 0.7 ps RMS and an input frequency range extending to 710 MHz for differential sources. It features I2C/SMBus control and is housed in a 24-lead QFN package.

Feature Summary

• MultiSynth technology enables independent, any-frequency synthesis on four output drivers with true zero ppm precision.
• Low phase jitter performance of 0.7 ps RMS typ, compliant with PCIe Gen 1/2/3/4 Common Clock standards.
• Highly configurable output drivers supporting LVPECL, LVDS, CML, HCSL, CMOS, SSTL, and HSTL formats.
• Flexible input reference options including external crystals (8–30 MHz), CMOS, SSTL/HSTL, and differential inputs.

Applications

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

Procurement Notes

Verify the specific factory-programmed configuration associated with the B04135 suffix against the target design requirements. Confirm that the required output frequencies and signal formats match the programmed settings, as this part number represents a fixed NVM configuration rather than a blank programmable unit.

Selection Notes

Select this component when a fixed, pre-configured clock solution is preferred over field-programmable alternatives. Ensure the application supports the specific output frequencies and voltage levels defined by the B04135 programming. Verify compatibility with the system's I2C bus voltage levels if dynamic monitoring is required.

Part Context

This part belongs to the Si5338 family of I2C-programmable clock generators. The 'B' series typically denotes factory-programmed variants with specific frequency and format configurations stored in non-volatile memory, distinguishing it from user-programmable counterparts like the standard Si5338A.

Replacement Considerations

Direct replacement requires verifying that the fixed output frequencies and formats of the SI5338B-B04135-GM match the original design specifications. If variable frequency adjustment is needed, a user-programmable variant such as the SI5338A may be required instead.