I want choose a part which has audio codec and audio amplifier in a single IC. It should support USB interface. The amplifier(chip) output is given to a speaker. It should support 3-5V supply range.
Note: Speaker consume power in the range 2-4W
Speaker has impedance in the range of 3-10 Ohms
Speaker has maximum resonant frequency of 750Hz ± 20%
Speaker's operating frequency range is varying from 0 - 20KHz
Speaker has a maximum distortion < 10%
