LTE Standard Module Series
EC21_Series_Hardware_Design
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EC21 series supports 16-bit linear data format. The following figures show the primary mode’s timing
relationship with 8 kHz PCM_SYNC and 2048 kHz PCM_CLK, as well as the auxiliary mode’s timing
relationship with 8 kHz PCM_SYNC and 256 kHz PCM_CLK.
Figure 22: Primary Mode Timing
Figure 23: Auxiliary Mode Timing
The following table shows the pin definition of PCM and I2C interfaces which can be applied on audio
codec design.
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