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1700MHz to 3000MHz High-Linearity, Low LO Leakage Base-Station Rx/Tx Mixer

Fully Integrated Up/Downconverter Delivers 7.5dB of Conversion Loss, 31dBm of IIP3, 7.8dB of NF, 63dBc of 2LO - 2RF Rejection, and -52dBm LO - RF Leakage While Replacing a Passive Mixer, an LO Amp, Two Baluns, an LO Switch, Plus Dozens of Discrete Components

Product Details

Key Features

Applications/Uses

Simplified Block Diagram

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Key Features

  • +31dBm Typical 3rd-Order Input Intercept Point
  • +23dBm Typical Input 1dB Compression Point
  • 1700MHz to 3000MHz RF Frequency Range
  • 1900MHz to 3000MHz LO Frequency Range
  • DC to 350MHz IF Frequency Range
  • 7.5dB Typical Conversion Loss
  • 7.8dB Typical Noise Figure
  • -160dBc/Hz LO Noise
  • -52dBm LO Leakage at RF Port
  • 67dBc LO ± 2IF Spurious Suppression
  • -3dBm to +6dBm LO Drive
  • +5V Single-Supply Operation
  • Built-In SPDT LO Switch with 43dB LO1 to LO2 Isolation and 50ns Switching Time
  • Internal RF and LO Baluns for Single-Ended Inputs
  • External Current-Setting Resistor Provides Option for Operating Mixer in Reduced Power/Reduced Performance Mode
  • Lead-Free Package Available
  • Applications/Uses

    • cdmaOne™ and cdma2000® Base Stations
    • DCS 1800 and EDGE Base Stations
    • Digital and Spread-Spectrum Communication Systems
    • Microwave Links
    • PCS 1900 and EDGE Base Stations
    • Point-to-Point Microwave Systems
    • Private Mobile Radio
    • UMTS/WCDMA and 3G Base Stations
    • WiMAX™ Base Stations and Customer Premise Equipment
    • Wireless Local Loop

    Description

    The MAX2043 high-linearity passive upconverter or downconverter mixer is designed to provide approximately +31dBm of IIP3, +67dBc of LO ± 2IF spurious rejection, 7.8dB of noise figure, 7.5dB of conversion loss, and -52dBm of LO leakage for UMTS/WCDMA, DCS, PCS, and WiMAX base-station applications. With a 1700MHz to 3000MHz RF frequency range and a 1900MHz to 3000MHz LO frequency range, this mixer is ideal for high-side LO injection architectures.

    In addition to offering excellent linearity and noise performance, the MAX2043 also yields a high level of component integration. The MAX2043 integrates baluns in the RF and LO ports, a dual-input LO-selectable switch, an LO buffer, and a double-balanced mixer. The on-chip baluns allow for a single-ended RF input for downconversion (or RF output for upconversion), and single-ended LO inputs. The MAX2043 requires a typical 0dBm LO drive, and supply current is rated at a typical 108mA level. The IF port is DC-coupled, making it ideal for direct conversion or modulation. As an upconverter, the device has low output noise floor of less than -160dBc/Hz (-160dBm/Hz when transmitting 0dBm linear RF power).

    The MAX2043 is available in a 36-pin thin QFN package (6mm x 6mm) with an exposed paddle. Electrical performance is guaranteed over the extended -40°C to +85°C temperature range.

    Simplified Block Diagram

    MAX2043: Typical Operating Circuit MAX2043: Typical Operating Circuit Zoom icon

    Technical Docs

    Support & Training

    Search our knowledge base for answers to your technical questions.

    Filtered Search

    Our dedicated team of Applications Engineers are also available to answer your technical questions. Visit our support portal .