is part of the Qualcomm Aqstic audio platform . Unlike basic audio chips, it combines a highly efficient , an analogue-to-digital converter (ADC) , and a dedicated digital signal processor (DSP) into a single, surface-mount package. Key Functional Blocks
The WCD9341 datasheet is explicit about grounding. Do not connect analog and digital grounds directly . The datasheet specifies a 0Ω resistor or ferrite bead between AGND and DGND near the chip.