RF & Wireless Downconverting Mixers

LTC6946 - Ultralow Noise and Spurious 0.37GHz to 6.39GHz Integer-N Synthesizer with Integrated VCO

LT5525 - High Linearity, Low Power Downconverting Mixer

Features

  • Wide Input Frequency Range: 0.8GHz to 2.5GHz*
  • Broadband LO and IF Operation
  • High Input IP3: +17.6dBm at 1900MHz
  • Typical Conversion Gain: –1.9dB at 1900MHz
  • High LO-RF and LO-IF Isolation
  • SSB Noise Figure: 15.1dB at 1900MHz
  • Single-Ended 50Ω RF and LO Interface
  • Integrated LO Buffer: –5dBm Drive Level
  • Low Supply Current: 28mA Typ
  • Enable Function
  • Single 5V Supply
  • 16-Lead QFN (4mm × 4mm) Package

Typical Application

LT5525 Typical Application
LT5525 Typical Application

Description

The LT5525 is a low power broadband mixer optimized for high linearity applications such as point-to-point data transmission, high performance radios and wireless infrastructure systems. The device includes an internally 50Ω matched high speed LO amplifier driving a double-balanced active mixer core. An integrated RF buffer amplifier provides excellent LO-RF isolation. The RF input balun and all associated 50Ω matching components are integrated. The IF ports can be easily matched across a broad range of frequencies for use in a wide variety of applications.

The LT5525 offers a high performance alternative to passive mixers. Unlike passive mixers, which require high LO drive levels, the LT5525 operates at significantly lower LO input levels and is much less sensitive to LO power level variations.

*Operation over a wider frequency range is achievable with reduced performance.  Consult factory for more information.

Packaging

CAD Symbols and Footprints: The downloadable Zip file below contains the schematic symbol and PCB footprints.

For complete and up to date package information and drawings, please refer to our packaging page

Part Number Package Code Temp Package
Drawing		 RoHS
LT5525EUF#PBF 4x4 QFN-16 UF E 05-08-1692 Yes
LT5525EUF#TRPBF 4x4 QFN-16 UF E 05-08-1692 Yes


LT5525 Package Drawing

Order Info

  • Part numbers ending in PBF are lead free. Solder plated terminal finish (SnPb) versions are non-standard and special terms and conditions and pricing applies if available. Please contact LTC marketing for information.
  • Part numbers containing TR or TRM are shipped in tape and reel or 500 unit mini tape and reel, respectively
  • Please refer to our general ordering information or the product datasheet for more details

Package Variations and Pricing

Part Number Package Temp Price
(1-99)		 Price
(1k)*		 RoHS
LT5525EUF#PBF 4x4 QFN-16 E $5.43 $3.80 Yes
LT5525EUF#TRPBF 4x4 QFN-16 E $3.90 Yes
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* The USA list pricing shown is for BUDGETARY USE ONLY, shown in United States dollars (FOB USA per unit for the stated volume), and is subject to change. International prices may differ due to local duties, taxes, fees and exchange rates. For volume-specific price or delivery quotes, please contact your local Linear Technology sales office or authorized distributor.

Demo Boards

Linear Technology offers many demo boards free of charge to qualified customers. Contact your local sales office or distributor to inquire about a demo board. Certain demo boards are also available for sale via credit card on this website. Demo boards are for evaluation purposes only. It remains the customer’s responsibility to verify proper and reliable operation in the actual end application.

Part Number Description Price Documentation
DC792A LT5525EUF Low Power Downconverting Mixer Demo Bd. RF=1.9GHz $125.00
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Click here to view our complete list of demo boards

Applications

  • Point-to-Point Data Communication Systems
  • Wireless Infrastructure
  • High Performance Radios
  • High Linearity Receiver Applications

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Design Tools

Linear Technology provides a variety of custom design simulation tools and device models to allow even novice designers to quickly and easily evaluate circuits using high performance switching regulators, amplifiers, data converters, filters and more. Please visit our Design Tools page to view and download:

  • LTspice - A powerful SPICE simulator, schematic capture and waveform viewer with enhancements and models for easing the simulation of switching regulators
  • LTpowerCAD - A complete power supply selection, synthesis and design tool
  • LTpowerPlay - A development environment supporting Linear Technology's Digital Power System Management (PSM) products
  • PScope & QuikEval - USB-based product demonstration and data acquisition system for use with our ADCs, DACs, and more
  • Linduino - Arduino compatible system for developing and distributing firmware libraries and example code
  • LinearLab Tools - A collection of Matlab and Python programs that provide direct access to Linear Technology’s data converter evaluation boards
  • And More!

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