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CS42888 Audio Codec: Matching Circuit Design for 8 Ohm 1W Speaker Output

CS42888 Audio Codec: Matching Circuit Design for 8 Ohm 1W Speaker Output

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#1 21673543 27 Feb 2015 02:18

Inho Jeon Inho Jeon

Anonymous

Post #1
21673543 27 Feb 2015 02:18

I'd like to design matching circuit of '8ohm 1W SPEAKER' using CS42888(Audio codec- attached file).

But that audio codec is not contained '8ohm 1W SPEAKER' pin.
Just 100 ohm audio out pin.

How can I what to do?

Please, inform me some guidance or refer. circuit.

CS42888-CQZ(Audio_Codec)
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#2 21673544 02 Mar 2015 14:55

John Schmitz John Schmitz

Anonymous

Post #2
21673544 02 Mar 2015 14:55

What you need is an amplifier that has at least a 3K ohm input impedance and can drive an 8 ohm load. This part is not designed to drive a heavy load like an 8 ohm speaker.
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