RF & Wireless Upconverting Mixers

LTC6946 - Ultralow Noise and Spurious 0.37GHz to 5.7GHz Integer-N Synthesizer with Integrated VCO
more options

LT5578 - 0.4GHz to 2.7GHz High Linearity Upconverting Mixer

Features

  • High Output IP3: 27dBm at 0.9GHz
                              24.3dBm at 1.95GHz
  • Low Noise Floor: –158dBm/Hz (POUT = –5dBm)
  • High Conversion Gain: 1.4dB at 0.9GHz
  • Noise Figure: 8.6dB
  • Low LO-RF Leakage: –43dBm
  • Single-Ended RF and LO Ports
  • Low LO Drive Level: –1dBm
  • Single 3.3V Supply
  • 5mm × 5mm QFN24 Package (Pin Compatible with LT5579)

Typical Application

LT5578 Typical Application
LT5578 Typical Application

Description

The LT5578 mixer is a high performance upconverting mixer optimized for frequencies in the 0.4GHz to 2.7GHz range. The single-ended LO input and RF output ports simplify board layout and reduce system cost. The mixer needs only –1dBm of LO power and the balanced design results in low LO signal leakage to the RF output. At 1.95GHz operation, the LT5578 provides conversion gain of –0.7dB, high OIP3 of 24.3dBm and a low noise floor of –158dBm/Hz at a –5dBm RF output signal level.

The LT5578 offers a high performance alternative to passive mixers. Unlike passive mixers, which have conversion loss and require high LO drive levels, the LT5578 delivers conversion gain at significantly lower LO input levels and is less sensitive to LO power level variations. The lower LO drive level requirements, combined with the excellent LO leakage performance, translate into lower LO signal contamination of the output signal.

Packaging

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

QFN-24

LT5578 Package Drawing

Order Info

Package Variations and Pricing

Part Number Package Pins Temp Price (1-99) Price (1k)* RoHS Data
LT5578IUH#PBF QFN 24 I $8.82 $5.25 View
LT5578IUH#TRPBF QFN 24 I $5.30 View
Buy Now • Request Samples
* 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
DC1545A-A LT5578 | Upconversion Mixer demo board, IF=240MHz, RF=1950MHz (HS LO) $125.00
DC1545A-B LT5578 | Upconversion Mixer Demo Board, IF=140MHz, RF=900MHz (LS LO) $125.00
Buy Now
Click here to view our complete list of demo boards

Applications

  • GSM 900PCS/1800PCS and W-CDMA Infrastructure
  • LTE and WiMAX Basestations
  • Wireless Repeaters
  • Public Safety Radios

People Who Viewed This Product Also Viewed

Product Notifications

Please login to your MyLinear account for notifications of datasheet updates, new document releases and LTspice model announcements for your favorite products. If you do not have a MyLinear account you may Sign Up Now.

Forgot your password? Click here.
Need help? Email mylinear@linear.com with questions and comments.

Simulate

LTspice IV is a powerful, fast and free simulation tool, schematic capture and waveform viewer with enhancements and models for improving the simulation of switching regulators. To download LTspice IV and other FREE simulation tools, please visit our Design Simulation page.

Technical Support