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ADAU1701 SPI Mode, Speed and Pins.

Question asked by Nando.One on Aug 21, 2014
Latest reply on Aug 22, 2014 by r.daemon@tugraz.at

Hello, how are you?

 

I have been using ADAU1701 with microcontroller, interfacing using i2c mode at 400Khz. 

 

I would like to know what would be the maximum practical (safe) speed using it in SPI mode? The datasheet doesn't say it. Can I expect 1Mbps or more?

 

Would it be OK if I don't connect the COUT pin, so the DSP only receives data, but I can't read it back? Then I could get away with only 3 pins of the microcontroller.

 

Thank you very much!

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