Abstract: An apparatus and method to transmit and receive digital signals in a communication system having a power source that provides power to a portion of a communication device and a mechanism to disable power to that portion of the communication device for periods of time, such that a reduced power consumption state is entered. Also included is sampling hardware to sample the signal during those periods of time when the communication device is not in the reduced power consumption state, which occurs when data is transferred or received.

Abstract: A low noise narrow band amplifier with low power consumption for amplifying radio frequency and microwave signals. The amplifier includes a high frequency transistor that has a cut-off frequency greater than the center frequency of the input signal. The amplifier includes an emitter inductor for low noise and better input match. The amplifier is stabilized for out-of-band high frequency oscillations by a collector inductor and a base inductor. The amplifier is further stabilized unconditionally for out-of-band high frequency oscillations by a stabilizing circuit coupled between the output and ground, including a stabilizing capacitor in series with a stabilizing resistor.