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I2S @ 192kHz

Question asked by Charles Lonsdale on Jan 15, 2019
Latest reply on Apr 29, 2019 by Charles Lonsdale

Can the LPC546XX series (LPC54608 specifically) support 192kHz I2S operation for 16bit stereo samples.

I think that the equations in the user manual suggest it can, but the text stops short of quoting support for 192kHz audio. It states "16, 22.05, 32, 44.1, 48, and 96 kHz, and others.". Other devices in the LPC range (i.e. LPC4330) quote support for 192kHz explicitly.

 

The SCLK required would be 6.144MHz from an MCLK of 24.576MHz which is in line with normal practice and the 96kHz/32bit example in the user manual.

 

Is there some other limitation that I'm not seeing that tops the operation at 96kHz?

 

Kind regards

Charles

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