IMX8MM: One SAI two i2S

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IMX8MM: One SAI two i2S

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denyslytvynov
Contributor I

Hello,

In the user manual under paragraph 13.9.1.2 there is a block diagram (Figure 13-104) which shows TX and RX signals which can be used for i2S. My question is:

I am trying to connect two devices - a Microphone and a Speaker. Both are using i2S for communication although one as a transmitter and another as a receiver. Microphone, MPN SPH0645LM4H-B, has WSBCLKDOUT and Speaker has a DAC - TAS2505 which is driven with i2S WSBLCK,  DIN. Would it be possible to drive both if I connect them in the following manner:
Microphone: 
  • WS - SAI2_RXFS
  • BCLK - SAI2_RXC
  • DOUT - SAI2_RXDO
Speaker:
  • WS - SAI2_TXFS
  • BCLK - SAI2_TXC
  • DIN - SAI2_TXD0

pastedImage_1.png

Kind Regards,
Den

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igorpadykov
NXP TechSupport
NXP TechSupport

Hi Den

>Would it be possible to drive both if I connect them in the following manner..

yes such connection is possible

Best regards
igor
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118 Views
igorpadykov
NXP TechSupport
NXP TechSupport

Hi Den

>Would it be possible to drive both if I connect them in the following manner..

yes such connection is possible

Best regards
igor
-----------------------------------------------------------------------------------------------------------------------
Note: If this post answers your question, please click the Correct Answer button. Thank you!
-----------------------------------------------------------------------------------------------------------------------

View solution in original post

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