Wcd9341 Datasheet //free\\

The datasheet highlights a phenomenal dynamic range for the DAC, frequently cited in the industry as exceeding 115 dB, ensuring deep, quiet noise floors and punchy, articulate peaks.

At the center of the WCD9341 is a custom DSP pipeline responsible for:

: Supports PCM audio up to 384-kHz/32-bit and native DSD (Direct Stream Digital) playback.

To achieve its 130 dB dynamic range, the WCD9341 segregates its power rails to prevent digital switching noise from bleeding into the sensitive analog domain: Clean analog supply voltage (typically 1.8V). wcd9341 datasheet

The WCD9341 is engineered to minimize audio coloration. Its exceptionally low THD rating means the sound produced is incredibly faithful to the original recording.

The WCD9341 datasheet is explicit about grounding. Do not connect analog and digital grounds directly . The datasheet specifies a 0Ω resistor or ferrite bead between AGND and DGND near the chip.

While exact ball maps are proprietary to Qualcomm's licensed customers, the pinouts are clustered into functional zones: Description Power Supply The datasheet highlights a phenomenal dynamic range for

The chip embeds a dedicated, high-efficiency headphone amplifier capable of driving a broad range of impedances—from low-impedance in-ear monitors (IEMs) to high-impedance over-ear studio headphones. It incorporates real-time Dynamic Range Enhancement (DRE) to suppress noise floors during quiet musical passages. 3. Advanced Voice UI and Hardware DSP

Clock and data lines tying the codec to the host processor master clock. 4. Electrical and Thermal Characteristics

The WCD9341 is suitable for various portable and mobile applications, including: The WCD9341 is engineered to minimize audio coloration

The WCD9341 generally features an integrated high-fidelity headphone amplifier capable of driving low-impedance headphones efficiently. 3. Key Features of the WCD9341

Analog Inputs ──┬── ADC0 (Main Mic) ├── ADC1 (Secondary Mic) ├── ADC2 (ANC/Reference) └── ADC3 (Line-in/Headset detect) ↓ Digital Decimation Filters ↓ ┌─────────────────────────┐ │ Audio DSP (Qualcomm Hexagon, 240 MHz) │ │ - FIR/IIR filters │ │ - Dynamic Range Control │ │ - Sample rate converter │ └─────────────────────────┘ ↓ ┌─────────────────────────┐ │ Hi-Fi DAC (32-bit, 384 kHz) │ │ - DSD direct path │ │ - 4th-order noise shaping │ └─────────────────────────┘ ↓ Class-H Headphone Amp (L+R) ↓ HP_L, HP_R output pins

Supports up to 384-kHz/32-bit Hi-Fi audio on the PCM side.

Differential output pins to drive the internal receiver speaker. Control Interface