Primarily manufactured by Qualcomm , often listed under the CSR PLC brand following acquisition.
The audio DSP provides five user-selectable interpolation filters for PCM (datasheet Table 12):
Unlike integrated power management chips that handle basic audio as an afterthought, the WCD9341 is a premium, low-latency silicon solution engineered for ultra-low distortion and pristine signal reproduction. Specifications & Performance Values Qualcomm Technologies, Inc. Part Number / Package
While exact ball maps are proprietary to Qualcomm's licensed customers, the pinouts are clustered into functional zones: Description Power Supply
The WCD9341 is controlled via I²C (up to 400 kHz) or SLIMbus. Key register groups: wcd9341 datasheet
: Supports PCM audio up to 384kHz/32-bit and native DSD (Direct Stream Digital).
: Capable of switching between a high-bit rate mode for music and a low-latency mode for gaming.
Qualcomm’s Proprietary technology designed for "Golden Ears" standard, offering an immersive sound experience.
Input pins for digital core (typically 1.2V), analog blocks (1.8V), and charge pumps. Analog Microphone Inputs Primarily manufactured by Qualcomm , often listed under
: Inability to record voice memos, dead microphone in calls.
The WCD9341 is a flagship audio codec designed to deliver superior Hi-Fi audio quality in mobile devices. It is built on a 40nm process technology and is renowned for its exceptional audio performance.
: Crackling or heavily muffled sound across speaker and headphone paths.
Accessing the complete datasheet can be challenging as it is not publicly available. To obtain the full document: Part Number / Package While exact ball maps
The is a high-tier, standalone hardware audio codec IC designed to deliver audiophile-grade high-fidelity (Hi-Fi) sound and power voice-activation capabilities. Launched alongside the Snapdragon 835 mobile platform, the WCD9341 acts as a dedicated audio hub featuring integrated analog-to-digital converters (ADCs), digital-to-analog converters (DACs), and headphone amplifiers. This comprehensive technical article breaks down the WCD9341 specifications, pin architecture, performance metrics, and application logic typically detailed across official Qualcomm Aqstic documentation . Core Specifications & Performance Metrics
Provide the for this codec family.
This chip handles speaker output, microphone input, and complex voice processing . Technicians often replace this IC to fix specific motherboard-level faults such as: Distorted or "dead" audio . Muffled microphone input or no sound from speakers . Voice UI or wake-up word recognition failures .