diyAudio

diyAudio (http://www.diyaudio.com/forums/)
-   PC Based (http://www.diyaudio.com/forums/pc-based/)
-   -   Impedance matching (http://www.diyaudio.com/forums/pc-based/187286-impedance-matching.html)

oleoleo2 18th April 2011 07:05 AM

Impedance matching
 
Hello.

I need some help with impedance matching!
I am designing an embedded unit, that has is supposed to have an output for external speaker/system. It should be matched so the impedance fits standard PC speakers (from what I could find it seems to be around 4 OhmsPc Speaker Impedance-Pc Speaker Impedance Manufacturers, Suppliers and Exporters on Alibaba.com)

The output comes from an MCU (LPC2132, this: http://www.keil.com/dd/docs/datashts...2_34_36_38.pdf)

whitch makes PWM that goes into a buffer (this: http://www.nxp.com/documents/data_sheet/74LVC1G34.pdf, but I can change that if necessary).

How do I match the output impedance of the buffer so it fits the imput impedance of a standard PC speaker?


All times are GMT. The time now is 11:24 PM.


vBulletin Optimisation provided by vB Optimise (Pro) - vBulletin Mods & Addons Copyright © 2014 DragonByte Technologies Ltd.
Copyright 1999-2014 diyAudio


Content Relevant URLs by vBSEO 3.3.2