When Nokia announced their music player capable phones they neglected to mention the lack of support for external headphones. Since the release of the 6230 and its related family with mp3/aac playback ...

Touch controls are not only used to switch devices on or off. They can also be used to control different functions. One good example is the TV remote control. If it is very important to keep the ...

AVC – The featured circuit controls a volume line automatically. It delivers an output voltage of approximately 4 volts peak to peak. This voltage remains relatively constant by input voltages ranging ...