WCD9340
WCD9340
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WCD9340

Qualcomm Aqstic™ Audio Codec

The Qualcomm Aqstic audio codec (WCD9340) supports popular voice UIs is designed to allow devices to have always-on and always-listening capabilities at very low power and high-resolution playback standards. It has an integrated audio codec DSP to support two voice UI wake-up words simultaneously and has an integrated DAC (digital-to-analog converter) that supports up to 384kHz/32bit Hi-Fi audio playback. The DAC on the Qualcomm Aqstic codec has ultra-low Total Harmonic Distortion plus Noise (THD+N), which means no additional noise or signal is added for the most authentic sound reproduction possible.

WCD9340 and Qualcomm Aqstic are products of Qualcomm Technologies, Inc. and/or its subsidiaries.

Product license agreement
Specifications
Voice Services
Ecosystems
Microsoft Cortana, Google Assistant, Amazon Voice Services, Baidu DuerOS
Power Consumption
Low Power Audio Playback
Down to 6 mW
High Performance Audio Playback
Down to 34 mW
Low power voice activation
0.65 mA
Audio Playback Interfaces
Sample Rate
Up to 48 kHz, Up to 44.1 kHz
Dynamic Range
Up to 130 dB
Total Harmonic Distortion + Noise (THD+N)
Less than -109 dB
Audio Recording Interfaces
Resolution
24-bit
Sample Rate
Up to 192 kHz
Dynamic Range
Up to 109 dB
Total Harmonic Distortion + Noise (THD+N)
Less than -103 dB
Pulse Code Modulation (PCM)
Resolution
32-bit
Sample Rate
Up to 384 kHz
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