Low Noise Amplifier

The MAAL-011139 is an RF amplifier assembled in a SOT-89 plastic package. In a 75-ohm CATV application, the amplifier provides 21.5 dB of flat gain while biased from 3 to 5 volts. The amplifier provides superior noise figure while maintaining excellent return losses. Gain and current may be optimized with adjustment of external component values. The MAAL-011139 provides high gain, low noise and low distortion making it ideally suited as input stage for fiber-to-the-home (FTTh) applications and other 75-ohm infrastructure applications. The MAAL-011139 can support both upstream (5-204 MHz) and downstream (45-1218 MHz) CATV operation. The MAAL-011139 may also be matched into a 50-ohm system. In a broadband 50 - 2000 MHz application, the amplifier provides 17 dB of flat gain. The MAAL-011139 offers 17 dB of available gain beyond 4 GHz