DC - 50+ GHz Medium Power Amplifier with AGC

    Discontinued >

    End of Life announced June 21, 2016 (16-0141)
    Last Time Buy January 6, 2017.
    Recommended replacement for new designs: TGA4840

    Key Features

    • 0.15um pHEMT technology
    • DC to > 50GHz linear bandwidth
    • 8dB Gain, 14dBm @ P1dB
    • Group delay ripple +/- 6 ps to 50 GHz
    • < 10 ps edge rates (20/80)
    • 3.5 Vpp 43 Gb/s NRZ PRBS
    • Bias: Vd=6.5 V, 100 mA
    • Chip size: 1.90 x 1.09 x 0.10 mm

    Qorvo's TGA4803 is a medium power wideband AGC amplifier that typically provides 8 dB small signal gain with 3 dB AGC range. Typical input and output return loss is > 10dB. Typical Noise Figure is 5 dB at 3 GHz. Typical saturated output power is 17 dBm. Small signal 3 dB BW is > 50 GHz. RF ports are DC coupled enabling the user to customize system corner frequencies.

    The TGA4803 is an excellent choice for 43 Gb/s NRZ applications. The TGA4803 is capable of driving a single Electro-Absorptive optical Modulator (EAM) with electrical Non-Return to Zero (NRZ) data. In addition, the TGA4803 may also be used as a transmit pre-driver or a receive gain block. Drain bias may be applied through the output port for best efficiency or through the on-chip drain termination. Three stages in cascade demonstrated 3.8 Vpp output voltage swing with 350 mV at the input when stimulated with 43 Gb/s 2^31-1 PRBS NRZ data.

    The TGA4803 requires off-chip decoupling and blocking components. Each device is 100% DC and RF tested on-wafer to ensure performance compliance. The device is available in die form and is lead-free and RoHS compliant.

    Typical Applications

      • 43 Gb/s OC-768 EAM Driver
      • 43 Gb/s OC-768 Gain Stage
      • Test Equipment
      • Ultra Wideband
    Frequency Min(GHz) DC
    Frequency Max(GHz) 50+
    Vpp(V) 3.5
    Gain(dB) 8
    3 dB Bandwidth(GHz) > 50
    Voltage(V) 6.5
    Current(mA) 100
    Package Type Die
    RoHS Yes
    Lead Free Yes
    Halogen Free Yes
    ITAR Restricted No
    ECCN 3A001.B.2.F

    This product appears in the following application block diagrams:

    • Applications > Network Infrastructure > Optical > Optical Systems (10, 40, 100, 200 to 400GB/s)

      Optical Systems (10, 40, 100, 200 to 400GB/s)

    • Applications > Network Infrastructure > Optical > Coherent Transceiver Module

      Coherent Transceiver Module