The RFIC meets the stringent DOCSIS 3.0 output linearity specifications with extra margin to overcome additional losses before the output connector.
Key specifications include meeting DOCSIS 3.0 requirements with +4 dB typical performance margin, 18 dB typical return loss across entire gain range, 30 dB typical maximum gain, +49 dBm typical OIP3, and 2.7 dB typical noise figure. Typical input stage bias is 5 V, 290 mA, while typical output stage bias is 8 V, 415 mA.
The TAT2814A comes in an industry standard 7- x 7-mm 48-pin QFN and consumes less than 5 W between a 5 V input amplifier supply and an 8 V output amplifier supply. The device utilizes proven GaAs pHEMT at Edge QAM optimized voltage to significantly reduce power consumption of the output stage.