LT5519 - 0.7GHz to 1.4GHz High Linearity Upconverting Mixer

The LT5519 mixer is designed to meet the high linearity requirements of wireless and cable infrastructure transmission systems. A high speed, internally 50 Ohm matched, LO amplifier drives a double-balanced mixer core, allowing the use of a low power, single-ended LO source. An RF output transformer is integrated, thus eliminating the need for external matching components at the RF output, while reducing system cost, component count, board area and system-level variations. The IF port can be easily matched to a broad range of frequencies for use in many different applications.

The LT5519 mixer delivers +17.1dBm typical input 3rd order intercept point at 1GHz with IF input signal levels of –10dBm. The input 1dB compression point is typically +5.5dBm. The IC requires only a single 5V supply.

Features
  • Wide RF Frequency Range: 0.7GHz to 1.4GHz
  • 17.1dBm Typical Input IP3 at 1GHz
  • On-Chip RF Output Transformer
  • On-Chip 50 Ohm Matched LO and RF Ports
  • Single-Ended LO and RF Operation
  • Integrated LO Buffer: –5dBm Drive Level
  • Low LO to RF Leakage: – 44dBm Typical
  • Noise Figure: 13.6dB
  • Wide IF Frequency Range: 1MHz to 400MHz
  • Enable Function with Low Off-State Leakage Current
  • Single 5V Supply
  • Small 16-Lead QFN Plastic Package
Typical Application
Applications
  • Wireless Infrastructure
  • Cable Downlink Infrastructure
  • Point-to-Point and Point-to-Multipoint Data Communications
  • High Linearity Frequency Conversion
Packaging
LT5519 Package Drawing
Order Information
Part NumberPackageTempPrice(1-99)Price (1k)*
LT5519EUF#PBF4x4 QFN-16E$5.93$4.15
LT5519EUF#TRPBF4x4 QFN-16E$4.25
Demo Boards
Part NumberDescriptionPrice
DC733ALT5519EUF | High Signal Level Upconverting Mixer$125.00
Datasheet
Reliability Data
CAD Symbol
Related Products
LT5519 - 0.7GHz to 1.4GHz High Linearity Upconverting Mixer
R409 - Reliability Data
LT5519 Footprints and Symbols