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Solving distortion and echo return in hands-free designs

Posted: 29 Nov 2006     Print Version  Bookmark and Share

Keywords:plastic enclosure  hands-free  microphone amplifier 

Hands-free communication performance is a standard function on desktop, residential phones and car kits. The quality of hands-free communication depends not just on the technology used for speakerphone function, but also plastic enclosure design choices. This article presents how plastic enclosure design can significantly affect performance.

Similar to speaker and microphone selection, care must be taken when designing a speaker driver and microphone amplifier. Saturation occurs when either the microphone or the microphone amplifier circuit are saturated and is a significant concern in high-noise environments, such as hands-free car kits and industrial applications.

View the PDF document for more information.

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