Abstract: A transmitter includes a plurality of devices which processes a transmit signal. Examples of such devices include a variable gain amplifier, a power amplifier and/or a modulator. Some other these devices are gain controllable. Some of these devices are bias controllable. Each controllable device receives at least one analog control signal (gain/bias) which sets operation of the controllable device. A logic circuit receives a specification of the analog control signal and generating a digital control signal based thereon. A digital-to-analog converter circuit converts the digital control signal to the analog control signal for application to the controllable device.