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TLV320AIC3100: Design Advice for Audio CODEC Application

Part Number: TLV320AIC3100
Other Parts Discussed in Thread: DS90UB927Q-Q1, DS90UB928Q-Q1

Hi

I will use two TLV320AIC3100 Audio CODEC in my application. One of the Audio CODEC will be connected directly with MPU and the other Audio CODEC will be far away from MPU that will be connected with serializer(DS90UB927Q-Q1) - deserializer(DS90UB928Q-Q1) circuit.

  1. Can I use the same I2S data at the close Audio CODEC and the serializer? If I can, how should I connect them?
  2. For the Stereo, can I2S_DC and I2s_DD pins be left floating? Can I use these pins as GPIO pins?
  • Hi,

    1. Is configuration as follows:

    • MPU-->(I2S)AIC3100
    • MPU-->--DS-->(DIN)AIC3100

    So essentially you are having two DIN (one from Serializer and one from MPU) utilizing the same I2S clocks from MPU? If so, this should not be a problem given two seperate Codecs, please clarify on your configuration so I can confirm.

    2. Please direct question to Interface team by creating another E2E thread