LTC5540

PRODUCTION

600MHz to 1.3GHz High Dynamic Range Downconverting Mixer

Part Models: 2
1ku List Price: Starting From $8.06

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Overview

Conversion Gain: 7.9dB at 900MHz
IIP3: 25.9dBm at 900MHz
Noise Figure: 9.9dB at 900MHz
16.2dB NF Under +5dBm Blocking
High Input P1dB
3.3V Supply, 640mW Power Consumption
Shutdown Pin
50Ω Single-Ended RF and LO Inputs
LO Inputs 50Ω Matched when Shutdown
High Isolation LO Switch
0dBm LO Drive Level
High LO-RF and LO-IF Isolation
Small Solution Size
20-Lead (5mm × 5mm) QFN package

The LTC5540 is part of a family of high dynamic range, high gain passive downconverting mixers covering the 600MHz to 4GHz frequency range. The LTC5540 is optimized for 0.6GHz to 1.3GHz RF applications. The LO frequency must fall within the 0.7GHz to 1.2GHz range for optimum performance. A typical application is a LTE or GSM receiver with a 700MHz to 915MHz RF input and high-side LO.

The LTC5540 is designed for 3.3V operation, however; the IF amplifier can be powered by 5V for the highest P1dB. An integrated SPDT LO switch with fast switching accepts two active LO signals, while providing high isolation.

The LTC5540’s high conversion gain and high dynamic range enable the use of lossy IF filters in high-selectivity receiver designs, while minimizing the total solution cost, board space and system-level variation.

Applications

Wireless Infrastructure Receivers (LTE, GSM, W-CDMA)
Point-to-Point Microwave links
High Dynamic Range Downmixer Applications

Part Models: 2
1ku List Price: Starting From $8.06

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
LTC5540IUH#PBF	20-Lead QFN (5mm x 5mm x 0.75mm w/ EP)	Material Declaration Reliablity Data Package Resources	Ultra Librarian SamacSys
LTC5540IUH#TRPBF	20-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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Hardware Ecosystem

Parts	Product Life Cycle	Description
Analog to Digital Converters (ADCs) 1
LTC2208	PRODUCTION	16-Bit, 130Msps ADC
Differential Amplifiers 2
LTC6417	LAST TIME BUY	1.6GHz Low Noise High Linearity Differential Buffer/16-Bit ADC Driver with Fast Clamp
LTC6400-14	LAST TIME BUY	2.4GHz Low Noise, Low Distortion Differential ADC Driver for 300MHz IF
Phase-Locked Loop (PLL) Synthesizers 1
LTC6946	LAST TIME BUY	Ultralow Noise and Spurious 0.37GHz to 6.39GHz Integer-N Synthesizer with Integrated VCO

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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