LT5578IUH#PBF

RF Mixers Overview

The LT5578IUH#PBF is a high-linearity active up-conversion mixer from Analog Devices, operating within the 0.4 GHz to 2.7 GHz frequency range. It features a single-ended LO input and RF output architecture housed in a 24-pin 5mm x 5mm QFN package. Key electrical specifications include a conversion gain of 1.4 dB at 0.9 GHz and -0.7 dB at 1.95 GHz. The device achieves an output third-order intercept point (OIP3) of 27 dBm at 0.9 GHz and 24.3 dBm at 1.95 GHz. It operates on a single 3.3 V supply with a typical static current of 152 mA. Additional parameters include a noise figure of 8.6 dB, LO-to-RF leakage of -43 dBm, and a low LO drive requirement of -1 dBm.

RF Mixers Feature Summary

• Integrates internal RF balun to simplify circuit layout and reduce external component count
• Provides high linearity performance suitable for wideband wireless infrastructure applications
• Features buffered LO input requiring minimal drive power for efficient operation

RF Mixers Applications

• GSM base station transmitters
• W-CDMA/UMTS infrastructure equipment
• LTE/WiMAX base station upconverters
• Wireless repeater systems

RF Mixers Procurement Notes

Verify the specific suffix designation when ordering, as packaging options such as tube or tape-and-reel variants exist within the LT5578 family. Confirm that the selected part number matches the required operational temperature range and voltage specifications for your specific design implementation. Ensure compatibility with existing board layouts due to the standardized 24-QFN footprint shared with related models like the LT5579.

RF Mixers Selection Notes

Select this component for designs requiring simplified single-ended interfaces without external baluns. It is appropriate for applications demanding high dynamic range and low LO drive levels across broad bandwidths. Consider the 3.3 V supply constraint and thermal dissipation requirements inherent to its active design when evaluating system power budgets and heat management strategies.

RF Mixers Part Context

This device belongs to the LT557x series of active mixers designed by Linear Technology, now part of Analog Devices. It was introduced to support emerging broadband standards like LTE, offering improved performance over previous generations. The part shares pinout compatibility with the LT5579, facilitating easier migration between different frequency ranges or configuration needs within the same product family.

RF Mixers Replacement Considerations

The LT5579 serves as a pin-compatible alternative within the same package, though it targets different frequency bands. Verify functional equivalence regarding interface topology and supply requirements before substitution.