700 - 3600 MHz Serial Controlled Digital Variable Gain Amplifier w/ Shutdown Function, 5-Bit, 1 dB Steps, Packaged

    Last Time Buy >

    End of Life announced September 8, 2023 (PCN 23-0126).
    Last Time Buy: September 20, 2024
    Recommended replacement for new designs: RFDA4005
    Contact your local sales representative for assistance.

    Note:  Any orders for Last Time Buy materials from Qorvo are considered non-cancellable, non-returnable.

    Key Features

    • 700 – 3600 MHz broadband performance
    • Digitally-controlled variable gain amplifier
    • Shut-down pin for TDD compatibility
    • 13 dB gain @ 1.9 GHz
    • 3.1 dB noise figure @ max gain setting
    • +40 dBm output IP3
    • 5-bit, 31 dB gain range
    • Internally matched
    • 5V operation
    • 5x5 mm 32-pin plastic package

    Qorvo's TQC9305 is a digitally controlled variable gain amplifier (DVGA) with a broadband frequency range of 700 to 3600 MHz. The DVGA features high linearity and low noise while providing digital variable gain with a 31 dB of range in 1 dB steps through a serial mode control interface. At 1.9 GHz, the DVGA typically provides 13 dB gain, +40 dBm OIP3, +23 dBm P1dB, and 3.1 dB noise figure. This combination of performance parameters makes the DVGA ideal for receiver applications requiring gain control with high IIP3 and low noise figure. In additional, the DVGA integrates a shut-down biasing capability to allow for easy operation for TDD applications.

    The TQC9305 integrates a high performance digital step attenuator followed by a high linearity, broadband gain block. Both stages are internally matched to 50 ohms and do not require any external matching components. The TQC9305 is packaged in a RoHS-compliant, compact 5x5 mm surface-mount leadless package.

    Typical Applications

      • Base Station Transceivers
      • Defense Communications
      • Repeaters / DAS
      • TDD
    Frequency Min(MHz) 700
    Frequency Max(MHz) 3,600
    Attenuation Range(dB) 31
    Gain @ 0 dB Atten(dB) 13
    OP1dB(dBm) 23
    OIP3(dBm) 40
    Bits 5
    NF(dB) 3.1
    Voltage(V) 5
    Current(mA) 130
    Package Type QFN, 32-pin
    Package(mm) 5.0 x 5.0 x 0.82
    RoHS Yes
    Lead Free Yes
    Halogen Free Yes
    ITAR Restricted No
    ECCN 5A991.B

    This product appears in the following application block diagrams:

    • Applications > Defense & Aerospace > Communications > Military Radio

      Military Radio

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

      Macro Base Station