QPB8857

    47 - 1218 MHz, 28 dB CATV Doubler Amplifier

    Key Features

    • High Gain: 28 dB @ 1218 MHz
    • Adjustable Bias
    • 57 dBmV/ch virtual 1.2 GHz, at 19 dB tilt
    • Low Noise: 4.5 dB
    • Excellent Composite Distortion
    • Compact Size: 40P 5.0 x 7.0 QFN

    The QPB8857 is a GaAs pHEMT/MESFET 75-ohm Doubler RF amplifier IC featuring over 28 dB of flat gain and low noise. This IC is designed to support DOCSIS 3.1 applications up to 1218 MHz using a single 24V supply. The QPB8857 offers low noise and low distortion at high efficiency consuming only 10.5 W in a 5.0 x 7.0 QFN package. Its compact size and low ϴjc enable integration that is ideally suited for hybrid module or an alternative to hybrid module applications.

    Typical Applications

      • DOCSIS 3.1
      • Broadband CATV hybrid modules
      • Head End CMTS Equipment
      • 75-ohm amplifiers
    Type Downstream
    Frequency Min(MHz) 47
    Frequency Max(MHz) 1,218
    Gain(dB) 28
    Pout(dBmV) 57
    CSO(dBc) -68
    CTB(dBc) -75
    NF(dB) 4.5
    Voltage(V) 24
    Current(mA) 440
    Package Type 40P QFN
    Package(mm) 5.0 x 7.0
    RoHS Yes
    Lead Free Yes
    Halogen Free Yes
    ITAR Restricted No
    ECCN 5A991G