fabrizio carraro

I just tried MQS. The audio quality is much better than single pin PWM. The signal looks like PWM but at a carrier frequency of about 350 Khz. Playing with the internal registers it may be possible to lower it below 150KHz maybe. However...

I need to transmit medium/good quality audio (taken from the analog audio input of an audio board with a sgtl5000 chip) far away using a laser beam. In order to do that I send a PWM signal to the laser. The light beam is received by a photosensor...