Datasheet: Wcd9341

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

: Delivers a high dynamic range of 123 dB , ensuring detailed sound reproduction.

Designed to produce high-resolution audio with superior dynamic range, often surpassing standard integrated audio solutions. wcd9341 datasheet

Comprehensive Guide to the WCD9341 Audio Codec: Datasheet, Architecture, and Pinout Analysis

This article is an aggregation of public research and reverse-engineered data. Qualcomm, Snapdragon, and WCD9341 are trademarks of Qualcomm Incorporated. For official engineering, please sign an NDA and request the proprietary datasheet directly from Qualcomm. The WCD9341 is a staple IC in the

| Ball Range | Signal Group | Description | | :--- | :--- | :--- | | A1-A5, B1-B5 | | Microphone bias voltage (2.0V/2.5V/2.8V selectable). | | C3-C8, D3-D8 | HPH_L, HPH_R | High-fidelity headphone outputs (left/right). | | F1-F10 | VDD_IO | I2S (Inter-IC Sound) and I2C (Inter-Integrated Circuit) control buses. | | J5-J12 | VSS / GND | Analog and digital ground planes. Critical: Split planes are required. | | K1-K8 | SLIMbus | Qualcomm’s proprietary serial bus for audio data. |

The WCD9341 supports Hi-Fi audio playback with sampling rates up to 192 kHz and a bit depth of 24-bit. This allows it to reproduce high-resolution audio files with stunning accuracy. For official engineering, please sign an NDA and

: Low-noise bias pins and inputs for multiple microphones. EAR_OUT : Signal line for the earpiece speaker. Power Supply Rails Digital Core Voltage (VDD_DIG) Analogue Audio Voltage (VDD_ANA) Charge Pump Voltage Supply (VDD_CP) 🔧 Common Fault Symptoms and Diagnostics

The official errata for the WCD9341 (Document #Q-8732-8) lists several known issues:

For those managing device repairs, professional installation is recommended due to the high density of the pins.