LTC5551IUF#PBF

RF Mixers Overview

The LTC5551IUF#PBF is an RF down-converting mixer from Analog Devices, operating within a frequency range of 300 MHz to 3.5 GHz. It features a single mixer configuration with a conversion gain of 3.2 dB and an input third-order intercept point (IIP3) of 36 dBm. The device exhibits a noise figure of 10.9 dB and supports a supply voltage between 2.5 V and 3.6 V. It draws a supply current of 204 mA and utilizes a 16-lead, 4 mm x 4 mm QFN package for surface mount installation.

RF Mixers Feature Summary

• Ultra-high linearity with 36 dBm IIP3 comparable to passive mixers
• Positive conversion gain eliminates traditional passive mixer loss
• Integrated LO buffer requires only 0 dBm drive level
• Low noise figure below 10 dB for improved receiver sensitivity

RF Mixers Applications

• Cellular communication systems
• GSM infrastructure applications
• RF receiver front-end stages requiring high dynamic range

RF Mixers Procurement Notes

Verify the specific suffix PBF confirms lead-free compliance and RoHS standards before procurement. Confirm the 16-lead QFN footprint matches your PCB layout requirements. Ensure the 2.5 V to 3.6 V supply range aligns with your system power architecture. Validate that the 300 MHz to 3.5 GHz operational bandwidth covers your target signal frequencies.

RF Mixers Selection Notes

Select this component when high linearity and low noise are critical for down-conversion tasks. The integrated LO buffer simplifies design by removing the need for external amplification. Consider the 3.2 dB gain advantage over passive alternatives for better signal-to-noise performance. Evaluate the 204 mA current consumption against your thermal and power budget constraints.

RF Mixers Part Context

This part belongs to the LTC5551 series of ultra-high dynamic range mixers. It is designed to replace passive mixers in applications demanding superior linearity without sacrificing noise performance. The series targets modern wireless infrastructure where signal integrity across wide bandwidths is essential for reliable data transmission.

RF Mixers Replacement Considerations

Public confirmed substitute part numbers are not available in the provided documentation.

RF Mixers FAQ

What is the required LO drive level for the LTC5551IUF#PBF?

The device features an integrated LO buffer that operates effectively with a drive level of 0 dBm.

Does the LTC5551IUF#PBF provide conversion gain or loss?

It provides a positive conversion gain of 3.2 dB, unlike typical passive mixers which suffer from insertion loss.