QPA7489A is a high-performance SiGe HBT MMIC amplifier. The Darlington configuration offers high FET and excellent thermal performance. The heterojunction increases the breakdown voltage and minimizes the leakage current between the junctions. The elimination of the emitter junction nonlinearity leads to higher suppression of intermodulation products. 

The QPA7489A can operate from various power supply voltages by using a voltage reduction resistor. Two DC blocking capacitors, a bypass capacitor, and an optional RF choke coil constitute the circuit required for the operation of this internally matched 50-ohm device. 

The QPA7489A is equipped with an industry-standard SOT89 package, is lead-free and complies with the RoHS standards. 

Main Function 

• Operation up to 3500 MHz 

Single positive voltage power supply 

• Cascaded 50 Ω 

• Gain: 17.7 dB at 1950 MHz 

Output IP3: +37.7 dBm, typical value at 850 MHz 

• Noise figure: The typical value at 1950 MHz is 3.2 dB. 

Low thermal resistance SOT-89 package 

• Lead-free / Compliant with RoHS standards 

Application program

 

Cellular, PCS, GSM, UMTS 

Power amplifier driver 

Intermediate frequency/radio frequency buffer amplifier 

• Wireless data, satellite