Abstract:
Exemplary embodiments are related to interfacing a digital module and a radio-frequency (RF) module of a wireless communication device. A device may include a digital module configured to output at least one constant-envelope phase modulated signal. The device may further include an RF module configured to receive the at least one constant-envelope phase modulated signal and generate one or more digital bits in response to receipt of the at least one constant-envelope phase modulated signal.
Abstract:
A tunable wide band driver amplifier is disclosed. In an exemplary embodiment, an apparatus includes a first band selection circuit selectively connected between an output terminal of an amplifier and a circuit ground. The first band selection circuit configured to adjust an amplification band from a first frequency band to a second frequency band. The apparatus also includes a first harmonic reduction circuit selectively connected between the first band selection circuit and the circuit ground and configured to reduce 2nd harmonic frequencies associated with the first frequency band when the amplification band is set to the first frequency band.