Product Overview

The LTC5542IUH is a high-performance passive downconverting mixer, part of a family of high dynamic range mixers covering 600MHz to 4GHz. It is optimized for 1.6GHz to 2.7GHz RF applications, with LO frequencies between 1.7GHz and 2.5GHz for optimum performance. Typical applications include LTE and WiMAX receivers, efficiently handling 2.3GHz to 2.7GHz RF inputs with low-side LO signals.

Key Features

• High Conversion Gain: Typical 8dB at 2.4GHz, effectively enhancing signal strength.
• Excellent Dynamic Range: IIP3 of 26.8dBm at 2.4GHz, maintaining signal linearity in high-interference environments.
• Low Noise Performance: 9.9dB noise figure at 2.4GHz, 17.3dB under 5dBm blocking, ensuring signal purity.
• Integrated LO Switch: Built-in high-speed SPDT LO switch with high isolation, supporting fast changing-over (<50ns) between two LO signals, ideal for frequency-hopping applications.
• Flexible Power Control: 3.3V supply with 660mW total consumption, featuring a shutdown pin that reduces current to ≤500μA, adapting to low-power needs.

Technical Specifications

Typical Applications

• Wireless Infrastructure Receivers: Suitable for LTE, W-CDMA, and WiMAX systems, its wide frequency coverage and high dynamic range enable precise processing of multi-band wireless signals, improving receiver sensitivity and interference resistance.
• Point-to-Point Microwave Links: In microwave communication, its high-isolation LO switch and low noise characteristics reduce interference and loss, ensuring stable long-distance data transmission.
• High Dynamic Range Downconversion Applications: For scenarios requiring handling strong interference, such as communication devices in complex electromagnetic environments, it effectively suppresses spurious signals to maintain signal integrity.

Why Choose LTC5542IUH?

• Standard-Aligned Performance: Optimized for 1.6GHz to 2.7GHz, perfectly matching LTE (2.3-2.7GHz) and other mainstream standards, enabling seamless integration without extra debugging.
• High Integration Simplifies Design: Integrated LO switch and matching circuits reduce external components, minimizing solution size and design complexity.
• Flexible LO Management: Supports fast 切换 between two LO signals with high isolation, meeting complex needs like frequency hopping and enhancing system adaptability.
• Controllable Power Consumption: 660mW in normal mode and ≤500μA in shutdown mode, adjustable for power-constrained applications to extend device runtime.
• Stable and Reliable: 50Ω single-ended RF/LO inputs with maintained matching in shutdown mode, reducing signal reflection and ensuring stability across operating states.

SUNTOP COMPANY INTRODUCTION

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