LTC5548

PRODUCTION

2GHz to 14GHz Microwave Mixer with Wideband DC–6GHz IF

Data Sheet Product Selection Table

Part Models: 2
1ku List Price: Starting From $11.75

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Overview

Upconversion or Downconversion
High IIP3:

+24.4dBm at 5.8GHz
+21.4dBm at 9GHz

7.1dB Conversion Loss at 5.8GHz
+15.2dBm Input P1dB at 5.8GHz
Integrated LO Buffer: 0dBm LO Drive
Selectable Integrated LO Frequency Doubler
Low LO-RF Leakage: <–30dBm
50Ω Wideband Matched RF and LO Ports
3.3V/120mA Supply
Fast Turn ON/OFF for TDD Operation
3mm × 2mm, 12-Lead QFN Package

The LTC5548 is a high performance, microwave double balanced passive mixer that can be used for frequency upconversion or downconversion. The device is similar to the LTC5549, but with a broadband, differential DC to 6GHz IF port. The LTC5548 is recommended for applications where the IF frequency range extends below 500MHz. For applications where the IF frequency is always above 500MHz, the LTC5549 is recommended, since it includes an integrated IF balun.

The LTC5548’s mixer and integrated RF balun are optimized to cover the 2GHz to 14GHz RF frequency range. The device includes an integrated LO amplifier optimized for the 1GHz to 12GHz frequency range, requiring only 0dBm drive. The device also includes an integrated LO frequency doubler, which can be enabled or disabled with a CMOS-compatible control pin.

The LTC5548 delivers exceptionally high IIP3 and P1dB, in addition to very low LO to RF and LO to IF leakages. The part also offers high integration in a small package.

Applications

Microwave Transceivers
Wireless Backhaul
Point-to-Point Microwave
Phased-Array Antennas
C, X and Ku Band RADAR
Test Equipment
Satellite MODEMs

Part Models: 2
1ku List Price: Starting From $11.75

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
LTC5548IUDB#TRMPBF	12-Lead QFN (3mm x 2mm x 0.75mm)	Material Declaration Reliablity Data Package Resources	Ultra Librarian SamacSys
LTC5548IUDB#TRPBF	12-Lead QFN (3mm x 2mm x 0.75mm)	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
Digital to Analog Converters (DACs) 1
LTC2000	PRODUCTION	16-/14-/11-Bit 2.5Gsps DACs
Low-Noise Amplifiers (LNAs) & Power Amplifiers 1
LTC6433-15	RECOMMENDED FOR NEW DESIGNS	Low Frequency to 1.4GHz 50Ω Gain Block IF Amplifier
Phase-Locked Loop (PLL) Synthesizers 1
LTC6948	LAST TIME BUY	Ultralow Noise 0.37GHz to 6.39GHz Fractional-N Synthesizer with Integrated VCO

Parts	Product Life Cycle	Description
LTC5549	PRODUCTION	2GHz to 14GHz Microwave Mixer with Integrated LO Frequency Doubler

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

LTC5548 Demo Board | 2GHz to 14GHz Microwave Mixer with Low IF Frequency

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Product Details

Demonstration circuit 2461A is optimized for evaluation of the LTC5548 passive double-balanced mixer with integrated LO frequency doubler. Its RF port is matched to 50Ω from 2GHz to 13.6GHz with 9dB return loss, and the LO port is matched to 50Ω from 1GHz to 12GHz with 10dB return loss. The differential IF port is usable from DC to 6GHz. The LTC5548 can be used for upconverting and downconverting applications.