0.7-3.6 GHz Digital Variable Gain Amplifier. The 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 an 8-bit serial mode control interface. This combination of performance parameters makes the DVGA ideal for receiver applications requiring gain control with high IIP3 and low noise figure.
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.