Differential to referenced audio drive
Differential to referenced audio drive
I'm interested in using the chips that allow playback of audio available at digikey but...... They have a differential output into an 8 ohm load so for stereo you can't connect two outputs together to drive a common set of headphones. Anybody have a tweaky idea of how to drive a set of headphones with one common side from a pair of separate differential outputs?
Re: Differential to referenced audio drive
Hi Ian.
That is "balanced to unbalanced", in RF terms, would be a balun transformer.
In audio stereo terms, it is still two -audio- transformers with one lead of each secondary tied together as common for the headphones.
I do not know which IC you have in mind, but the data sheet should tell you if one side can be reference grounded for unbalanced output. It very probably can be done. Then you would need no transformers, just tweaky tie both SAME polarity pins for each channel to ground and you will be able to connect standard headphones, or "line outputs"<p>Hope it helps,<p>Miguel
That is "balanced to unbalanced", in RF terms, would be a balun transformer.
In audio stereo terms, it is still two -audio- transformers with one lead of each secondary tied together as common for the headphones.
I do not know which IC you have in mind, but the data sheet should tell you if one side can be reference grounded for unbalanced output. It very probably can be done. Then you would need no transformers, just tweaky tie both SAME polarity pins for each channel to ground and you will be able to connect standard headphones, or "line outputs"<p>Hope it helps,<p>Miguel
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