WJA1021

    50 - 4000 MHz Cascadable Gain Block

    Last Time Buy >

    End of Life announced January 16, 2017 (17-0006).
    Last Time Buy July 18, 2017.
    Contact your local sales representative for assistance.
    Please use SBB5089Z for new designs.

    Key Features

    • 50 to 4000 MHz
    • 17.5 dB Gain @ 1.9 GHz
    • +19 dBm P1dB @ 1.9 GHz
    • +36.5 dBm OIP3 @ 1.9 GHz
    • +5 V single supply
    • Low current draw (90 mA)
    • Unconditionally stable
    • Internally matched to 50 Ohm

    Qorvo's WJA1021 is a cascadable gain block that offers high linearity in a low-cost surface mount package. At 1.9 GHz, the WJA1021 typically provides 17.5 dB gain, +36.5 dBm OIP3 and +19 dBm P1dB. The device is housed in a lead-free / green / RoHS compliant industry-standard SOT-89 surface mount package using a NiPdAu plating to eliminate the possibility of tin whiskering.

    The WJA1021 consists of Darlington pair amplifier using a high reliability InGaP / GaAs HBT process technology. The amplifier has been optimized internally to offer very high linearity performance at 1.9 GHz while drawing very low current. The MMIC amplifier is internally matched to 50 Ohm and only requires DC-blocking capacitors and a bias inductor for operation. An internal active bias is designed to enable stable performance over temperature and allow for operation directly from a +5 V supply voltage.

    The broadband amplifier can be directly applied to various current and next generation wireless technologies such as GSM, CDMA, W-CDMA, WiBro. The WJA1021 is ideal for general purpose applications such as LO buffering or amplification and pre-driver stages within the 50 to 4000 MHz frequency range.

    Typical Applications

      • Base Station Transceivers
      • GSM, PCS, CDMA, WCDMA
      • Repeaters
      • WiBro
      • WiMAX
    Frequency Min(MHz) 50
    Frequency Max(MHz) 4,000
    Gain(dB) 16.7
    OP1dB(dBm) 19
    OIP3(dBm) 37.5
    NF(dB) 5.6
    Voltage(V) 5
    Current(mA) 90
    Package Type SOT-89
    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 > Multi-Band VSAT

      Multi-Band VSAT

    • Applications > Defense & Aerospace > Electronic Warfare > EW Signal Jammer

      EW Signal Jammer

    • Applications > Defense & Aerospace > Radar > S Band Radar

      S Band Radar

    • Applications > Defense & Aerospace > Radar > L Band Radar

      L Band Radar

    • Applications > Network Infrastructure > Point-to-Point Radio > Point-to-Point Radio

      Point-to-Point Radio

    • Applications > Network Infrastructure > Satellite Communications > Multi-Band VSAT

      Multi-Band VSAT

    • Applications > Network Infrastructure > Wireless Infrastructure > Repeaters / Boosters / DAS

      Repeaters / Boosters / DAS