While full official datasheets are often restricted to Qualcomm partners, technical summaries and "Aqstic" marketing reveals several "gold standard" features: Integrated Hi-Fi DAC/Amp

The WCD9341 is controlled via I²C (up to 400 kHz) or SLIMbus. Key register groups:

The datasheet also revealed that the WCD9341 had a high signal-to-noise ratio (SNR) of 110 dB, which was excellent for a mobile device. Emma was impressed by the chip's ability to deliver clear and distortion-free audio, even in noisy environments.