LTC5549IUDB#TRPBF

RF Mixers Overview

The LTC5549IUDB#TRPBF is a broadband passive double-balanced microwave mixer from Analog Devices Inc., designed for radar and wireless infrastructure applications. It operates across a wide RF range of 2 GHz to 14 GHz, with an LO frequency range of 1 GHz to 12 GHz and an IF range of 500 MHz to 6 GHz. The device features integrated LO buffering requiring only 0 dBm drive power and includes a bypassable internal LO doubler controlled by the X2 pin. Key electrical parameters include a maximum conversion loss of 8 dB, a noise figure of 7.9 dB, an OIP3 of 20.2 dBm, and a P1dB of 14.3 dBm at 5.8 GHz. It functions on a single 3 V to 3.6 V supply with a current draw of 115 mA.

RF Mixers Feature Summary

• Integrated local oscillator buffer amplifier eliminates the need for external LO drive circuitry
• Built-in bypassable LO doubler allows flexible frequency planning using lower-cost PLL sources
• Broadband passive double-balanced architecture supports both up-conversion and down-conversion operations
• Single-ended 50-ohm ports simplify interface matching for RF, LO, and IF connections

RF Mixers Applications

• Radar systems
• Wireless communication infrastructure
• Point-to-point microwave links
• RF test and measurement instruments

RF Mixers Procurement Notes

Verify component authenticity through authorized Analog Devices distributors or certified partners. Confirm lot traceability and RoHS compliance status prior to procurement. Ensure storage conditions meet moisture sensitivity level requirements. Validate that the specific suffix matches design specifications. Request manufacturer documentation for quality assurance records.

RF Mixers Selection Notes

Evaluate the integrated LO buffer and doubler capabilities against system frequency requirements to determine if external synthesizers are necessary. Compare conversion loss and noise figure metrics with alternative mixers in the 2 GHz to 14 GHz range. Assess thermal management needs based on the 115 mA operating current. Verify compatibility with existing PCB layout constraints for the QFN-12 package.

RF Mixers Part Context

This component belongs to the LTC5549 series of high-performance microwave mixers. It shares architectural similarities with other Analog Devices RF mixers but distinguishes itself through the integrated LO doubling feature. The device complements broader signal chain solutions for C, X, and Ku band applications.

RF Mixers Replacement Considerations

LTC5549IUDB#TRMPBF is a verified substitute part number within the same product family.