1099888

High Linearity Gain Block with Shutdown. The TQL9048 is a cascadable, high linearity gain block amplifier in a low-cost surface-mount package. At 1.9 GHz, the amplifier typically provides 14.5 dB gain, +40.5 dBm OIP3, and 1.7 dB Noise Figure while only drawing 130 mA current. The device is housed in a very small 2x2 mm package.

The TQL9048 has good noise figure and high linearity performance allowing the device to be used in both receiver and transmitter chains for high performance systems. The gain block is internally matched using a high performance E-pHEMT process and only requires four external components for operation from a single positive supply: an external RF choke and blocking/bypass capacitors. This low noise amplifier contains an internal active bias to maintain high performance over temperature and integrates a shut-down biasing capability to allow for operation for TDD applications.

The TQL9048 covers the 50-4000 MHz frequency band and is targeted for wireless infrastructure or other applications requiring high linearity and/or low noise figure.