LTC5543IUH#PBF RF Downconverter Mixer 6-Lead DFN Package ?C High Performance

LTC5543IUH#PBF Overview

The LTC5543IUH#PBF is a high-performance, wideband RF power detector designed for precise power measurement across a broad frequency range from 400 MHz to 4 GHz. This monolithic detector enables accurate, linear detection of RF power, making it ideal for applications requiring reliable power monitoring in wireless communications, test equipment, and radar systems. With a low noise floor and wide dynamic range, it simplifies system design by providing a direct DC output voltage proportional to the logarithm of the input RF power. The device is RoHS compliant and offered in a compact 16-lead QFN package. Available from IC Manufacturer, it supports high-precision RF power detection needs in industrial and commercial electronics.

LTC5543IUH#PBF Technical Specifications

LTC5543IUH#PBF Key Features

• Wide frequency coverage from 400 MHz to 4 GHz: allows versatile use in diverse RF applications including cellular, Wi-Fi, and radar systems.
• High dynamic range input power detection (-55 dBm to +5 dBm): ensures accurate measurement across very low to moderate power levels critical for sensitive RF environments.
• Monolithic logarithmic detector output: provides a linear-in-dB DC voltage output simplifying system calibration and signal processing.
• Low supply current consumption (3.9 mA typical): supports energy-efficient designs without sacrificing measurement accuracy.
• Compact 16-lead QFN package: enables integration into space-constrained applications while maintaining robust electrical performance.
• Wide operating temperature range (-40??C to +85??C): suitable for industrial and commercial environments requiring reliable operation under temperature extremes.
• RoHS compliant, lead-free construction: aligns with global environmental standards and manufacturing requirements.

LTC5543IUH#PBF Advantages vs Typical Alternatives

This device offers superior performance with its broad frequency range and wide input power sensitivity compared to typical RF power detectors. Its low supply current and integrated logarithmic detection simplify system complexity and improve reliability. The compact QFN package facilitates high-density PCB layouts while maintaining thermal stability. These features collectively provide enhanced accuracy, efficiency, and integration ease, making it preferable over discrete or less sensitive alternatives.

Typical Applications

• Wireless communication systems: Used for real-time power monitoring and calibration in base stations, repeaters, and mobile devices requiring accurate RF power detection.
• Test and measurement equipment: Enables precise RF power level measurements across broad frequency bands in laboratory and production environments.
• Radar and military systems: Supports reliable power detection in radar front-ends, ensuring performance consistency under various operating conditions.
• RF power control circuits: Facilitates feedback loops in power amplifier modules to optimize output power and improve system efficiency.

LTC5543IUH#PBF Brand Info

The LTC5543IUH#PBF is produced by a leading semiconductor manufacturer renowned for delivering high-quality integrated circuits tailored for RF and mixed-signal applications. This product exemplifies the brand??s commitment to innovation in RF detection technology, offering engineers a reliable, precise, and easy-to-integrate solution for complex power measurement challenges in industrial and commercial electronics markets.

FAQ

What frequency range does this RF power detector support?

The device supports a broad frequency range from 400 MHz up to 4 GHz, making it suitable for various wireless communication bands including cellular, Wi-Fi, and radar frequencies