LTC5594

RECOMMENDED FOR NEW DESIGNS

300MHz to 9GHz High Linearity I/Q Demodulator with Wideband IF Amplifier

Data Sheet (Rev. A) Product Selection Table

Part Models: 2
1ku List Price: Starting From $19.39

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Overview

True Zero IF Demodulation
Wideband Input Matched from 500MHz to 9GHz
Wide IF Bandwidth: DC to 1GHz (1dB Flatness)
37dB Image Rejection, Adjustable to 60dB
High Total OIP3: 37dBm at 5.8GHz
58dBm OIP2 at 5.8GHz, Adjustable to 65dBm
Max Power Conversion Gain: 9.2dB at 5.8GHz
Single-Ended RF Input with On-Chip Transformer

User Adjustable DC Offset Null
Serial Interface
IF Amplifier Gain Adjustable in Eight Steps
IF Amplifier Shutdown/Enable
Low Power Shutdown Mode
Operating Temperature Range (T_C): −40°C to 105°C
32-Lead 5mm × 5mm QFN Package

The LTC5594 is a direct conversion quadrature demodulator optimized for high linearity zero-IF and low-IF receiver applications in the 300MHz to 9GHz frequency range. The very wide IF bandwidth of more than 1GHz makes the LTC5594 particularly suited for demodulation of very wideband signals, especially in 5G front-haul/back-haul receiver applications. The outstanding dynamic range of the LTC5594 makes the device suitable for demanding infrastructure direct conversion applications. Proprietary technology inside the LTC5594 provides the capability to optimize OIP2 to 65dBm, and achieve image rejection better than 60dB. The DC offset control function allows nulling of the DC offset at the A/D converter input, thereby optimizing the dynamic range of true zero-IF receivers that use DC-coupled IF signal paths. The wideband RF and LO input ports make it possible to cover all the major wireless infrastructure frequency bands using a single device. The IF outputs of the LTC5594 are designed to interface directly with most common A/D converter input interfaces. The high OIP3 and high conversion gain of the device eliminate the need for additional amplifiers in the IF signal path.

APPLICATIONS

5G Base Station Front-haul/Back-haul Receivers
Military and Satellite Receivers
Point-to-Point Broadband Radios
High Linearity Direct Conversion I/Q SDR
Test Instrumentation
DPD Receivers

Part Models: 2
1ku List Price: Starting From $19.39

Documentation

ADI has always placed the highest emphasis on delivering products that meet the maximum levels of quality and reliability. We achieve this by incorporating quality and reliability checks in every scope of product and process design, and in the manufacturing process as well. "Zero defects" for shipped products is always our goal. View our quality and reliability program and certifications for more information.

Part Model	Pin/Package Drawing	Documentation	CAD Symbols, Footprints, and 3D Models
LTC5594IUH#PBF	32-Lead QFN (5mm x 5mm x 0.75mm w/ EP)	Material Declaration Reliablity Data Package Resources	Ultra Librarian SamacSys
LTC5594IUH#TRPBF	32-Lead QFN (5mm x 5mm x 0.75mm w/ EP)	Material Declaration Reliablity Data Package Resources	Ultra Librarian SamacSys

This is the most up-to-date revision of the Data Sheet.

Software Resources

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Tools & Simulations

ADIsimRF

ADIsimRF is an easy-to-use RF signal chain calculator. Cascaded gain, noise, distortion and power consumption can be calculated, plotted and exported for signal chains with up to 50 stages. ADIsimRF also includes an extensive data base of device models for ADI’s RF and mixed signal components.

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Evaluation Kits

LTC5594 l 300MHz to 9GHz I/Q Demodulator with Wideband IF Amplifier

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Product Details

Demonstration circuit 2645A showcases the LTC5594 300MHz to 9GHz high linearity I/Q demodulator with wideband IF amplifiers. The USB serial controller, DC590B, is required to control and configure LTC5594 for its evaluation.