ADL5375:  400 MHz to 6 GHz Broadband Quadrature Modulator

The ADL5375 is a broadband quadrature modulator designed for operation from 400 MHz to 6 GHz. Its excellent phase accuracy and amplitude balance enable high performance intermediate frequency or ...More

ADL5375:  400 MHz to 6 GHz Broadband Quadrature Modulator

Product Description

The ADL5375 is a broadband quadrature modulator designed for operation from 400 MHz to 6 GHz. Its excellent phase accuracy and amplitude balance enable high performance intermediate frequency or direct radio frequency modulation for communication systems.

The ADL5375 features a broad baseband bandwidth, along with an output gain flatness that varies no more than 1 dB from 450 MHz to 3.8 GHz. These features, coupled with a broadband output return loss of <−14 dB, make the ADL5375 ideally suited for broadband zero IF or low IF-to-RF applications, broadband digital predistortion transmitters, and multiband radio designs.

The ADL5375 accepts two differential baseband inputs and a single-ended LO. It generates a single-ended 50 Ω output. The two versions offer input baseband bias levels of 500 mV (ADL5375-05) and 1500 mV (ADL5375-15).

The ADL5375 is fabricated using an advanced silicon-germanium bipolar process. It is available in a 24-lead, exposed paddle, Pb-free, LFCSP_VQ package. Performance is specified over a −40°C to +85°C temperature range. A Pb-free evaluation board is also available.

Applications

  • Cellular communication systems
    • GSM/EDGE, CDMA2000, W-CDMA, TD-SCDMA
  • WiMAX/broadband wireless access systems
  • Satellite modems

    • Data Sheet, Rev. A, 11/2008

    Features

    • Output frequency range: 400 MHz to 6 GHz
    • 1 dB output compression: >9.4 dBm from 450 MHz to 4 GHz
    • Output return loss < 14 dB from 450 MHz to 5.5 GHz
    • Noise floor: −160 dBm/Hz @ 900 MHz
    • Sideband suppression: <−50 dBc @ 900 MHz
    • Carrier feedthrough: <−46 dBm @ 900 MHz
    • Baseband input bias level
      ADL5375-05: 500 mV
      ADL5375-15: 1500 mV
    • Single supply: 4.75 V to 5.25 V
    • 24-lead LFCSP_VQ package

    Verified Circuits Using This Part

    Verified Circuits are designed for ease of use and proven to work by ADI applications engineers. To learn more about Verified Circuits from ADI, please visit Verified Circuits Home.

    Circuit Diagram

    Diagrams

    ADL5375 Diagram
    Functional Block Diagram for ADL5375

    Specifications

    Function Mod
    RF Freq (MHz) 400 to 6000
    IQ Freq (MHz) 500MHz
    Noise Floor (dBm/Hz) -161
    Voltage Supply (V) 4.75 to 5.25
    Supply Current (max) 190mA
    Package 24-Lead LFCSP

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