The The MikroElektronika's Speaker Click is a compact add-on board that contains an audio power amplifier with a high-quality audio reproduction. This board features the MAX9717, a 1.4W mono bridge-tied load BTL architecture audio power amplifier from Maxim Integrated. It delivers 1.4W continuous power into a 4Ω load from a single +5V supply, or 350mW continuous power into an 8Ω load while operating from a single +3.3V supply. Also, the MAX9717 has an adjustable gain amplifier and a headphone sense input that senses headphone connection to the device, muting the speaker while driving the headphone as a single ended load. This Click board is suitable for portable audio applications such as PDAs and portable devices where space and cost are of great importance.

1.4W mono audio amplifier
10nA low-power Shutdown mode
No audible clicks or pops
Adjustable gain option
Headphone sense feature