SI5338K-B05614-GMR

Overview

The SI5338K-B05614-GMR is a programmable quad clock generator utilizing MultiSynth technology. It synthesizes any frequency on four independent output drivers with zero ppm accuracy. The device supports differential and single-ended formats including LVPECL, LVDS, HCSL, CMOS, SSTL, and HSTL. Input references range from external crystals (8–30 MHz) to differential clocks up to 710 MHz. Key electrical parameters include a core supply voltage of 1.8 V, 2.5 V, or 3.3 V, typical operating current of 45 mA, and typical phase jitter of 0.7 ps RMS. It operates within a temperature range of –40 °C to +85 °C in a 24-lead QFN package.

Feature Summary

• Independent any-frequency synthesis on four outputs with true zero ppm precision
• Low phase jitter of 0.7 ps RMS typ for high-performance timing applications
• Highly configurable output drivers supporting multiple signal formats and voltages
• I2C/SMBus compatible interface for flexible programming via ClockBuilder Pro

Applications

• PCIe Gen 1/2/3/4 Common Clock and SRNS compliant systems
• Ethernet switch/router and telecom line cards
• Processor and FPGA clocking solutions
• Broadcast video/audio timing infrastructure

Procurement Notes

Verify the specific ordering suffix against the manufacturer's official documentation to confirm pinout configuration and factory programming settings. Ensure compatibility with I2C bus voltage levels by checking register configurations if the bus voltage is below 2.5 V. Confirm moisture sensitivity handling requirements during storage and assembly processes.

Selection Notes

Select this component when independent glitchless frequency adjustments and precise phase offsets are required across multiple outputs. Evaluate the input reference type, as the device supports various sources including crystals, CMOS, and differential signals. Consider the output format requirements, such as LVDS or HCSL, to ensure the driver configuration matches the load impedance and voltage standards of the destination devices.

Part Context

This part belongs to the Si5338 family of I2C-programmable clock generators. The 'K' designation typically indicates a specific factory-programmed configuration variant within the series. The '-GMR' suffix denotes tape and reel packaging suitable for automated surface-mount assembly. This model replaces discrete crystal oscillators by providing flexible frequency translation capabilities.

Replacement Considerations

Direct functional replacements within the same family include other Si5338 variants with matching output counts and frequency ranges. Verify that alternative part numbers support the required output formats and input frequencies. Check for identical package dimensions and pin assignments to ensure mechanical compatibility without PCB redesign.