A Zener diode is a specially designed silicon semiconductor diode that is intended to operate in the reverse breakdown region. Unlike an ordinary PN junction diode, which is normally damaged when subjected to excessive reverse voltage, a Zener diode is manufactured with carefully controlled doping concentrations that allow it to safely operate in the breakdown […]
Here is a compact stereo Bluetooth speaker circuit design based on AC695678N Bluetooth audio SoC and the PAM8403 Class-D stereo audio amplifier. The circuit receives audio wirelessly from a smartphone or laptop, processes the audio inside the Bluetooth IC, amplifies the audio signal using the PAM8403 amplifier, and finally drives stereo speakers. The circuit is […]