The FX029 single-chip Dual Digitally Controlled Amplifier Array can replace manual audio-level controls in most electronic applications including radio and line communications systems. The FX029 comprises two digitally controlled gain and attenuation stages, with each stage having 48 distinct gain steps (range; between -48dB and +48dB in 2dB steps) plus a MUTE state. Both gain stages have selectable inputs. This switching allows for selection of three different input signals to stage 1 and two to stage 2.