Wcd9341 Datasheet -

| Parameter | Value | |--------------------------|--------------------------------| | DAC SNR (A-weighted) | 128 dB | | THD+N (DAC) | -108 dB | | ADC SNR (Mic input) | 102 dB | | Headphone Output Power | 2 × 40 mW into 32Ω @ 1% THD | | Supply Voltage (Analog) | 1.8 V / 1.2 V (internal LDO) | | Digital I/O Voltage | 1.2 V – 1.8 V (programmable) | | Package | 81-ball WLCSP (0.4 mm pitch) |

When working with the WCD9341, engineers have reported:

The WCD9341 datasheet is more than a technical document; it is a roadmap to mobile audio excellence. While obtaining the full document requires legal agreements with Qualcomm, the publicly available specifications confirm that this codec remains a benchmark for high-fidelity portable audio.

For engineers, the takeaway is clear: The WCD9341 offers 130 dB dynamic range and native DSD support in a tiny 5x6 mm package—making it worth the effort to secure the datasheet via official channels. For audiophiles, understanding its pinout and power requirements explains why phones using this chip require high-impedance headphones (50Ω+) to unlock the "high-gain mode" described in Section 3.4 of the datasheet.

Next Steps for the Reader:

Disclaimer: 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. wcd9341 datasheet

The Qualcomm Aqstic WCD9341 Go to product viewer dialog for this item.

is a high-fidelity audio codec primarily used in flagship smartphones powered by the Snapdragon 835 platform, such as the Samsung Galaxy S8/Note 8 and Xiaomi Mi Note 2. Key Technical Specifications

is designed for high-resolution audio playback and low-power "always-on" voice processing. Audio Resolution: Supports up to 384-kHz/32-bit PCM audio.

DSD Support: Features native DSD (Direct Stream Digital) decoding, eliminating the need for PCM conversion for audiophile-grade tracks.

Dynamic Range: Typically exceeds 120 dB (based on related Aqstic family specifications). Disclaimer: This article is an aggregation of public

Total Harmonic Distortion (THD+N): Engineered for ultra-low distortion (typically <-100 dB) to ensure noise-free Hi-Fi playback.

Integrated Tech: Includes a dedicated hardware block for Active Noise Cancellation (ANC) and supports "always-listening" voice UI wake-up words at low power. Application Guide SM-G960U/W/U1 Common - iFixit

From Qualcomm’s Hardware Integration Guide (non-public, but referenced):

If you want, I can:

is a high-fidelity audio codec IC from the Qualcomm Aqstic series, primarily integrated with the Snapdragon 835 is a high-fidelity audio codec IC from the

mobile platform. It is widely used in flagship devices like the Samsung Galaxy S8 Key Specifications Audio Quality : Supports playback of up to 384 kHz / 32-bit PCM audio and native DSD (Direct Stream Digital) Performance

: Features a High-Fidelity DAC with a dynamic range typically exceeding

and extremely low Total Harmonic Distortion plus Noise (THD+N). Voice Features

: Supports "Always-on" voice UI, including voice activation and low-power keyword detection. Connectivity : Integrated support for the interface for digital audio channel access. : Features a configuration commonly found in mobile device repair parts. Typical Applications Flagship Smartphones : Found in the Samsung Galaxy series

and other Snapdragon 835-powered devices like the HTC 10 and Xiaomi Mi Note 2. Hi-Fi Audio Systems

: Utilized for professional-grade mobile audio recording and playback. repair guides for a specific device like the Galaxy S8 or Note 8?

Title: Decoding the WCD9341: A Technical Overview of Qualcomm’s Audio Codec