Wcd9341 Datasheet Jun 2026
The Qualcomm WCD9341 is a sophisticated piece of audio engineering that played a significant role in raising the bar for mobile audio quality. Its blend of high-resolution playback, powerful on-board processing, and flexible connectivity made it a benchmark in its class. For engineers and developers, the wealth of documentation, including mainline Linux driver support, provides a stable and well-understood platform for building high-fidelity audio products. While it has been succeeded by newer models, its technical capabilities continue to be relevant in understanding what a premium-tier audio codec can achieve.
| Mode | Current | Power | |------|---------|-------| | Playback (44.1 kHz, 16-bit, no DSP) | 12.5 mA | 22.5 mW | | Playback (384 kHz, 32-bit, all filters) | 31.2 mA | 56.2 mW | | DSD256 playback | 28.4 mA | 51.1 mW | | Record (2x ADC, 48 kHz) | 8.1 mA | 14.6 mW | | Record + ANC (ADC0 + ADC1 + DSP) | 18.5 mA | 33.3 mW | | Standby (register retention) | 210 µA | 0.38 mW | | Shutdown | 2 µA | 0.0036 mW |
WCD9341 Datasheet: Deep Dive into Qualcomm Aqstic Audio Codec Specifications
For general audio tasks, the WCD9341 handles everything from system sounds and music streaming to voice calls. It uses its efficient DSP to ensure that complex audio processing (like equalization or echo cancellation) does not burden the main application processor, contributing to overall system performance and battery life.
The outlines a highly advanced, standalone audio codec designed to deliver uncompromising, studio-quality sound in power-constrained mobile environments. Below is a comprehensive breakdown of what makes this audio integrated circuit (IC) a landmark piece of silicon engineering. 1. What is the WCD9341? wcd9341 datasheet
| 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. |
Based on the official preliminary datasheet (Rev 1.4, 2016) and internal Qualcomm validation reports:
The codec offers a high signal-to-noise ratio (SNR) and extremely low Total Harmonic Distortion (THD), translating to clean, detailed sound.
While exact ball maps are proprietary to Qualcomm's licensed customers, the pinouts are clustered into functional zones: Description Power Supply The Qualcomm WCD9341 is a sophisticated piece of
The WCD9341 is a highly integrated audio codec chip designed for portable and mobile applications. This paper provides an in-depth analysis of the WCD9341 datasheet, highlighting its key features, specifications, and potential applications.
The WCD9341 datasheet provides a detailed breakdown of the chip's specifications, including:
Let me know what stage of development you are in, and I can help you find the right technical resources. A new audio codec built with the help of Golden Ears
Requires external 2.2 µF bootstrap capacitor on CP_OUT and 4.7 µF on VDD_CP . Missing these causes audible thumps. While it has been succeeded by newer models,
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.
The internal LDOs require a minimum load current of 10 mA to maintain regulation. Floating the output is not allowed.
In the consumer market, the WCD9341 is most recognized for its role in the Samsung Galaxy flagship series.