LMK04131SQE/NOPB

Clock Generators, PLLs, Frequency Synthesizers Overview

The LMK04131SQE/NOPB is a jitter cleaner from Texas Instruments featuring an integrated voltage-controlled oscillator (VCO) operating between 1430 MHz and 1570 MHz. It provides six outputs supporting LVPECL, LVDS, and LVCMOS levels within a 48-pin WQFN package. The device accepts inputs up to 400 MHz and delivers output frequencies ranging from 0.35 MHz to 1570 MHz. It operates on a single supply voltage between 3.15 V and 3.45 V, with a functional temperature range of -40°C to +85°C.

Clock Generators, PLLs, Frequency Synthesizers Feature Summary

• Integrates a high-frequency VCO for direct clock generation without external components
• Supports multiple output logic families including LVPECL, LVDS, and LVCMOS
• Provides cascaded PLL architecture for advanced jitter cleaning capabilities

Clock Generators, PLLs, Frequency Synthesizers Applications

• High-speed data converter clocking systems
• Telecommunications infrastructure equipment
• Test and measurement instrumentation requiring low phase noise

Clock Generators, PLLs, Frequency Synthesizers Procurement Notes

Verify the specific suffix 'SQE' matches your design requirements, as it denotes the commercial temperature grade and packaging variant. Confirm that the 48-lead WQFN footprint aligns with your PCB layout constraints. Ensure the power supply rails strictly adhere to the 3.15 V to 3.45 V specification to maintain optimal jitter performance and device stability during operation.

Clock Generators, PLLs, Frequency Synthesizers Selection Notes

Select this component when a compact solution is required for generating high-frequency clocks with minimal external circuitry. The integrated VCO eliminates the need for separate crystal oscillators at these frequencies. Consider the available output drive options if interfacing with diverse digital logic families in mixed-signal environments.

Clock Generators, PLLs, Frequency Synthesizers Part Context

This part belongs to the LMK041xx family of clock jitter cleaners designed by Texas Instruments. These devices utilize cascaded phase-locked loops to suppress input jitter while maintaining signal integrity. The LMK04131 variant specifically targets applications needing high-frequency synthesis directly from the internal VCO, distinguishing it from lower-frequency synthesizers in the same series.

Clock Generators, PLLs, Frequency Synthesizers Replacement Considerations

The LMK04101SQE/NOPB serves as a related alternative within the same product family. While both are jitter cleaners, the LMK04101 lacks the integrated high-frequency VCO found in the LMK04131. Designers must evaluate whether the internal VCO functionality is critical for their specific frequency generation needs before substituting.