LTC5548IUDB#PBF

RF Mixers Overview

The LTC5548IUDB#PBF is a high-performance microwave double-balanced passive mixer from Analog Devices Inc., designed for frequency upconversion and downconversion applications. It operates within a radio frequency range of 2 GHz to 14 GHz, supporting a wideband intermediate frequency from 0 Hz to 6 GHz. The device features a local oscillator input range of 1 GHz to 12 GHz and includes a selectable integrated LO frequency doubler. Key electrical parameters include a maximum conversion loss of 7.1 dB, a noise figure of 8 dB, an OIP3 of 17.3 dBm, and a P1dB compression point of 15.2 dBm. It requires a 3.3 V supply with a typical operating current of 120 mA. The component is housed in a 12-lead QFN package (3x2 mm) and supports surface mount installation across a temperature range of -40°C to +105°C.

RF Mixers Feature Summary

• High-performance microwave double-balanced passive architecture suitable for both upconversion and downconversion tasks
• Integrated selectable LO frequency doubler enabling flexible local oscillator drive requirements
• Wideband DC intermediate frequency capability extending from 0 Hz to 6 GHz
• Fast turn-on/turn-off characteristics optimized for Time Division Duplex (TDD) operation

RF Mixers Applications

• Radar systems requiring high linearity and wide bandwidth
• Wireless communication infrastructure utilizing TDD protocols
• Frequency translation stages in microwave test and measurement equipment
• Satellite communication ground stations

RF Mixers Procurement Notes

Verify the specific suffix configuration when ordering, as packaging options such as tube or reel may vary by distributor. Confirm RoHS compliance status and lead times directly with authorized suppliers, as availability for this specific part number can be subject to change. Ensure that the procurement channel provides valid traceability documentation required for aerospace or defense-grade deployments.

RF Mixers Selection Notes

Select this component when a wide RF bandwidth up to 14 GHz and low conversion loss are critical. The integrated LO doubler simplifies circuit design by reducing external component count. Consider the 120 mA supply current and thermal dissipation capabilities of the QFN package for power management planning. Evaluate the 8 dB noise figure against system sensitivity requirements for receiver front-end applications.

RF Mixers Part Context

This device belongs to the LTC5548 series of microwave mixers from Analog Devices. It shares architectural similarities with other high-frequency mixers in the portfolio but is distinct in its specific IF bandwidth and LO drive specifications. The #PBF suffix indicates a lead-free, halogen-free tube packaging option, distinguishing it from tape-and-reel variants like the #TRMPBF.

RF Mixers Replacement Considerations

Public confirmed substitute part numbers are not available in the provided documentation. Users should consult official Analog Devices cross-reference tools for potential alternatives.