TQL9047 is a low-cost surface-mount packaged cascaded high-linear gain block amplifier. At 1.9 GHz, the amplifier typically offers 14.5 dB gain, +35.5 dBm OIP3 and 1.6 dB noise figure, while drawing 70 mA current from a 5V power supply. 

The key features of TQL9047 are that it has medium gain over a wide frequency range and integrates a shutdown bias capability to enable TDD applications. The low noise factor and high linearity performance allow this device to be used in the receiver and transmitter chains of high-performance systems. The internal active bias circuit can operate stably under bias and temperature variations, and can be biased from a single positive power supply ranging from +3.3 to +5 volts. The amplifier is internally matched using a high-performance E-pHEMT process and is installed in a small 2 x 2 mm surface-mount package. 

TQL9047 covers the frequency band ranging from 700 MHz to 4200 MHz, and is suitable for wireless infrastructure or other applications that require high linearity and/or low noise factor. 

 

Main Function 

• 50 - 4200 MHz operating bandwidth 

Flat gain ranging from 0.7 to 2.7 GHz (14.5 ± 1 dB) 

• High linearity, +35.5 dBm output IP3 

1.6 dB noise figure 

Integrated on-chip matching, 50 ohm input/output 

Integrated active bias 

Integrated shutdown control pin 

Application program

 

• Base station transceiver and repeater 

National Defense Communication 

General Wireless

 

• Testing instruments 

• TDD or FDD system