Wcd9341 Datasheet !link!

The WCD9341 is a staple IC in the mobile repair industry, frequently replaced to fix audio issues like broken sound, headphone detection failures, or microphone malfunctions. Samsung Galaxy S8/S8+ Samsung Galaxy S10 / S10e / S10+ Samsung Galaxy Note 8 Samsung Galaxy Note 9 Samsung Galaxy Note 10 / Note 10+ / Note 10 Lite 5. Summary Table: WCD9341 Quick Specs Specification Product Component Audio Codec IC Manufacturer Qualcomm Aqstic Model WCD9341 (001) Package Type Primary Use Smartphone Sound Quality (HD) Typical Application Samsung Galaxy Series

Dynamically adjusts the internal voltage rails based on the amplitude of the audio signal. If the music is quiet, the rail voltage drops to conserve power.

As she delved deeper into the datasheet, Emma discovered that the WCD9341 was manufactured by a relatively unknown company called Wuhan Cirrus Logic (WCL). A quick online search revealed that WCL was a Chinese firm with a reputation for producing innovative, yet often overlooked, semiconductor products.

The is a premium-tier, high-fidelity (Hi-Fi) audio codec chip belonging to the Qualcomm Aqstic audio platform . Widely integrated alongside flagship processors like the Snapdragon 835, this 40nm integrated circuit (IC) powers the comprehensive voice processing and sound path control found in premier legacy flagships, such as the Samsung Galaxy Note 8 and Galaxy S9 . wcd9341 datasheet

The WCD9341 is designed for audiophile-grade performance in mobile devices :

This write-up provides the core technical context. For production development, pursue an NDA with Qualcomm to obtain the full datasheet and reference design files.

. It is widely used in professional repair for smartphones like the Samsung Galaxy S8, Note 8, and Note 9 The WCD9341 is a staple IC in the

The codec’s audio performance is exceptional, with a and total harmonic distortion plus noise (THD+N) of −109 dB —figures that rival many dedicated high‑end audio DACs. Its signal‑to‑noise ratio (SNR) reaches 115 dB , guaranteeing an extremely black background free from hiss or interference.

The WCD9341 001 IC acts as the primary audio engine, responsible for managing all audio input and output paths in advanced smartphones. It is known for high-definition (HD) audio playback, supporting high-resolution audio formats and offering low-power consumption, which is critical for mobile devices.

In mobile devices, power efficiency is paramount. The WCD9341 employs several strategies to minimize power draw: If the music is quiet, the rail voltage

For open-source Linux implementation, foundational register definitions and initialization sequences can be found within the Linux Kernel source tree under the audio machine driver directory ( sound/soc/codecs/wcd934x.c ).

Operating a high-end DAC inside a smartphone requires intelligent power scaling to avoid draining the battery.

Registers govern fine-grained analogue and digital gain steps, ensuring mic inputs do not clip during loud recordings. Finding the PDF Datasheet

WCD-9341-0-154WLPSP (154-pin Wafer-Level Chip-Scale Package) Up to 384 kHz / 32-bit audio playback DSD Support Native DSD64 and DSD128 playback compatibility Dynamic Range (DNR) Up to 123 dB (Playback path) Total Harmonic Distortion + Noise -105 dB (THD+N) typical for headphone output paths Voice UI Support 6-mic source tracking, Far-field voice activation, ECNS Host Interface SoundWire, SLIMbus, and I2S/PCM protocols Key Architectural Features 1. Premium DAC and Native High-Resolution Playback

Reviewing for audio hardware bring-up. Share public link