LT5557EUF#PBF

RF Mixers Overview

The LT5557EUF#PBF is a high-performance active downconverting mixer from Analog Devices, designed for frequency translation within the 400 MHz to 3.8 GHz range. It operates on a single 3.3 V supply and accepts input signals up to +10 dBm. The device features an integrated local oscillator (LO) buffer amplifier and provides a differential intermediate frequency (IF) output. Key electrical specifications include a typical conversion gain of 2.9 dB, a noise figure of 11.7 dB, and an LO-to-RF isolation of 60 dB. It is housed in a compact 16-lead QFN package.

RF Mixers Feature Summary

• Integrated LO buffer amplifier eliminates external matching components
• Differential IF output interface simplifies downstream circuit design
• High signal level handling capability supports strong input environments
• Single-supply operation reduces system power complexity

RF Mixers Applications

• Cellular infrastructure base stations
• WCDMA and UMTS mobile communication systems
• Broadband wireless access point receivers
• Satellite communication downlink modules

RF Mixers Procurement Notes

Verify that the ordering suffix matches the required packaging format. The #PBF designation indicates tube packaging, whereas #TRPBF denotes tape and reel. Confirm the specific suffix aligns with manufacturing requirements before finalizing procurement orders to ensure correct physical delivery configuration.

RF Mixers Selection Notes

Select this component when designing receivers requiring wideband coverage from 400 MHz to 3.8 GHz with moderate noise performance. It is suitable for applications demanding high linearity and large signal handling capabilities. Ensure the design accommodates the differential IF output topology and the specific 3.3 V supply voltage constraints.

RF Mixers Part Context

This part belongs to the LT5557 family of active mixers manufactured by Analog Devices. It serves as a direct replacement for the LT5557EUF-PBF variant. The series is engineered for telecommunications applications, offering a balance between low noise figure and high dynamic range in a small form factor.

RF Mixers Replacement Considerations

The LT5557EUF-PBF is a confirmed equivalent part number for the LT5557EUF#PBF. Both variants share identical electrical characteristics and pinout configurations. Verify that the substitute part maintains the same QFN-16 package dimensions and thermal pad requirements.