TLV320ADC3101:

Ping Zhang

For I2S the DUTTLV320ADC3101 will generate with 1 bit offset, for the TDM, does it also transmit the I2S data protocol? Is there 1 bit offset for TDM?

And are left justified mode with time-slot-based mode enabled and DSP mode with time-slot-based mode enabled both called TDM?

Thanks.

over 2 years ago

+1 Daveon Douglas over 2 years ago

TI__Mastermind 29200 points

Hi Ping,

The TDM mode can be used with all the protocols (DSP, I2S, left/right justified). However, it is suggested to use it with the DSP and left justified protocols because the MSB is sent in the first BCLK after the rising edge of the word clock.

Adding an offset bit to data line can be independent of I2S or DSP mode.

Here is a good e2e response to your question in detail: https://e2e.ti.com/support/audio-group/audio/f/audio-forum/450891/tlv320aic3254-dsp-and-tdm-mode

Here is the application report describe in detail how to configure the TDM mode and present the associated protocol timing diagrams for the I2S and DSP modes of operation with various offset programmability: Using TLV320AIC3x Digital Audio Data Serial Interface w/TDM Support

Regards,

Audio

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TLV320ADC3101: