3300 - 3800 MHz, 0.5 Watt Serial Controlled Digital Variable Gain Amplifier, 6-Bit, 0.5 dB Steps, Packaged

    Discontinued >

    End of Life announced May 7, 2021 (PCN 21-0102).
    Last Time Buy: May 3, 2022
    Recommended replacement for new designs: QPB9011, TQM879008
    Contact your local sales representative for assistance.

    Key Features

    • 3.3-3.8 GHz frequency range
    • 40 dB maximun gain at 3.5 GHz
    • 31.5 dB gain range in 0.5 dB steps
    • +44.5 dBm Output IP3
    • +27.8 dBm Output P1dB
    • Fully internally matched module
    • Integrated blocking capacitors, bias inductors
    • 3-wire SPI control programming

    Qorvo's TQC9312 is a digital variable gain amplifier (DVGA) featuring high linearity over the entire gain control range. This amplifier module integrates two gain blocks, a digital-step attenuator (DSA), and a high linearity 0.5 W amplifier. The module has the added feature of integrating all matching components, bias chokes and blocking capacitors. The internal 6-bit DSA provides a 31.5 dB gain control range in 0.5 dB steps, and is controlled with a serial periphery interface.

    The TQC9312 features variable gain from 9 dB to 40dB at 3.5 GHz, +44.5 dBm output IP3, and +27.8 dBm P1dB. The module operates from a single +5V supply and is available in a compact 28-pin 6x6 mm leadless SMT package.

    The TQC9312 is pin compatible with the TQM879008 (1.5-2.7GHz, 0.5W P1dB) and TQM879006A (1.4-2.7GHz, 0.25W P1dB). This allows one to size the right type of device for specific system level requirements as well as making the DVGA family ideal for applications where a common PCB layout is used for different frequency bands.

    Typical Applications

      • Base Station Transceivers
      • DAS
    Frequency Min(MHz) 3,300
    Frequency Max(MHz) 3,800
    Attenuation Range(dB) 31.5
    OP1dB(dBm) 27.8
    OIP3(dBm) 44.5
    NF(dB) 4
    Voltage(V) 5
    Current(mA) 285
    Package Type QFN, 28-pin
    Package(mm) 6.0 x 6.0 x 1.02
    RoHS Yes
    Lead Free No
    Halogen Free Yes
    ITAR Restricted No
    ECCN 5A991.B

    This product appears in the following application block diagrams:

    • Applications > Network Infrastructure > Wireless Infrastructure > Macro Base Station

      Macro Base Station