LMX2582RHAT

Overview

The LMX2582RHAT is a high-performance, wideband PLLatinum RF synthesizer manufactured by Texas Instruments. It integrates a low-noise phase-locked loop (PLL) with a voltage-controlled oscillator (VCO), supporting an output frequency range from 20 MHz to 5.5 GHz. The device operates on a single supply voltage between 3.15 V and 3.45 V, with a typical operating current of 250 mA. It features differential outputs and accepts clock input levels up to 1.4 GHz. Packaged in a 40-pin VQFN (6x6 mm) surface-mount format, it functions within a temperature range of -40°C to +85°C.

Feature Summary

• Integrates a low-noise wideband PLL with an internal VCO for compact system design
• Supports broad frequency synthesis capabilities spanning cellular and wireless bands
• Delivers differential output signals to enhance signal integrity in RF applications

Applications

• Cellular infrastructure base stations
• Wireless local area network (WLAN) systems
• Point-to-point microwave radio links
• Software-defined radio platforms

Procurement Notes

Verify the specific suffix RHAT against the official Texas Instruments datasheet to ensure compatibility with required packaging formats such as tape-and-reel or cut tape. Confirm that the 40-VQFN package dimensions align with the target PCB footprint. Check moisture sensitivity level (MSL 3) requirements for storage and reflow soldering processes to prevent component damage during assembly.

Selection Notes

Select this component when a wide tuning range up to 5.5 GHz is required alongside integrated VCO functionality to minimize external passive components. Consider the 250 mA operating current for power budget calculations and thermal management strategies. Ensure the input reference clock does not exceed the 1.4 GHz maximum limit. Evaluate the 40-pin VQFN package constraints for layout density and thermal dissipation needs in dense electronic assemblies.

Part Context

The LMX2582 belongs to the PLLatinum family of RF synthesizers from Texas Instruments, designed for high-performance wireless communication systems. This series emphasizes low phase noise and wide bandwidth to support modern modulation schemes. The RHAT variant specifically denotes the tape-and-reel packaging option suitable for automated surface-mount assembly lines, distinguishing it from other package styles like the RHAR variant.

Replacement Considerations

Consult the official Texas Instruments replacement matrix for direct pin-compatible alternatives. Verify that any substitute maintains the 20 MHz to 5.5 GHz frequency range and 40-VQFN package form factor. Cross-reference electrical specifications to ensure equivalent phase noise performance and supply voltage tolerance.