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Designed specifically for smart assistants, small form factor smart speakers and audio-capable home hub applications with an integrated, advanced Voice UI.
Qualcomm QCS403 is a product of Qualcomm Technologies, Inc. and/or its subsidiaries.
Featured Documents
Product Brief
Supports new levels of performance for portable and battery-powered smart speakers compared to our previous SoCs. Helps reduce standby current requirements for mains-connected speakers or smart assistants.
Unique, highly-integrated yet flexible single-chip architecture designed to deliver substantial power efficiencies, performance improvements and opportunities for advanced feature innovation, as well as helping audio manufacturers to reduce BOM.
Truly superior audio performance, with support for Qualcomm® DDFA™ amplifier technology, and Qualcomm® aptX™ audio.
Dedicated high-performance audio DSP with hardware enhancement capable of up to 12 channels of audio post processing. Dual DSP cores support high performance and low-power keyword detection.
Highly-integrated architecture, with a dual-core CPU, dual DSP, Wi-Fi, Bluetooth, and powerful audio features on a single chip
Industry-leading connectivity with low-latency streaming and advanced Wi-Fi, Bluetooth, and Zigbee coexistence technology
Superior audio performance, compatible with DDFA amplifier technology and aptX audio
High performance, low-power keyword detection pre-loaded and running on an integrated DSP
Configurable multi-keyword detection with Local Automatic Speech Recognition designed for customizable user experiences
Includes low power far-field keyword detection, multi-mic beamforming noise suppression with mono, stereo, and multichannel echo cancellation
Industry-leading far field voice capture technology, with simultaneous multi key word detection
Support for up to 12 channel audio output
Help reduce product development time and cost, with our Audio Development Kit (ADK), and Software Evaluation Kit, as well as hardware reference designs
Qualcomm® Artificial Intelligence Engine
AIE CPU: Dual-core CPU
AIE DSP: 2x Qualcomm® Hexagon™ DSP
CPU
CPU Cores: Dual-core CPU
DSP
DSP Audio: V66 800 MHz with low power island
DSP Compute: V66 700 MHz with Qualcomm® AI Engine
DSP Clock Speed: 1.4 GHz
Wi-Fi
Wi-Fi Standards: 802.11ax-ready, 802.11ac
MIMO Configuration: 2x2 (2-stream), 1x1 (1-stream), 4x4 (4-stream)
Wi-Fi Features: Dual-band simultaneous (DBS)
Bluetooth
Bluetooth Version: Bluetooth 5.1
Bluetooth Technology: Bluetooth Low Energy, Bluetooth Classic
802.15.4
LR-WPAN Protocol: Zigbee
USB
USB Version: USB 2.0
Voice Services
Voice UI: 4-microphone far-field voice pickup noise cancellation, Low-power standby with voice wakeup
General Audio
Audio Technology: Dolby Digital/Digital+, Virtual X, Low-latency streaming, Qualcomm® DDFA™ amplifier technology, Qualcomm® aptX™ audio technology
Qualcomm® aptX™ audio playback support: Qualcomm® aptX™ Adaptive
Audio Channels Supported: 12
Security Support
Security Features: Secure voice
Interface
Supported Interfaces: PCIe, I²C, Ethernet, SDIO, SPI, UART, USB 2.0, USB 3.0
Software Options
Operating System: Linux
Qualcomm Smart Audio Platform, Qualcomm QCS400, Qualcomm DDFA, Qualcomm AI Engine and Qualcomm aptX are products of Qualcomm Technologies, Inc. and/or its subsidiaries.
| Voice & Music Applications | AIE CPU | AIE GPU | AIE DSP | DSP Audio | DSP Compute | DSP Clock Speed | Wi-Fi Standards | Wi-Fi Features | Bluetooth Version | LR-WPAN Protocol | Voice UI | Audio Technology | Audio Channels Supported | Operating System |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Smart Assistant Smart Speakers | Dual-core CPU | — | 2x Qualcomm® Hexagon™ DSP | V66 800 MHz with low power island | V66 700 MHz with Qualcomm® AI Engine | 1.4 GHz | 802.11ax-ready 802.11ac | Dual-band simultaneous (DBS) | Bluetooth 5.1 | Zigbee | 4-microphone far-field voice pickup noise cancellation Low-power standby with voice wakeup | Virtual X Qualcomm® DDFA™ amplifier technology Low-latency streaming Dolby Digital/Digital+ Qualcomm® aptX™ audio technology | 12 | Linux |
Smart Speakers | Quad-core CPU | — | 2x Qualcomm® Hexagon™ DSP | V66 800 MHz with low power island | V66 700 MHz with Qualcomm® AI Engine | 1.4 GHz | 802.11ax-ready 802.11ac | Dual-band simultaneous (DBS) | Bluetooth 5.1 | Zigbee | 4-microphone far-field voice pickup noise cancellation Low-power standby with voice wakeup | Qualcomm® DDFA™ amplifier technology Low-latency streaming Qualcomm® aptX™ audio technology | 12 | Linux |
Soundbars & Home Theater Smart Speakers | Quad-core CPU | Qualcomm® Adreno™ 306 GPU | 2x Qualcomm® Hexagon™ DSP | V66 800 MHz with low power island | V66 700 MHz with Qualcomm® AI Engine | 1.4 GHz | 802.11ax-ready 802.11ac | Dual-band simultaneous (DBS) | Bluetooth 5.1 | Zigbee | 4-microphone far-field voice pickup noise cancellation Low-power standby with voice wakeup | Qualcomm® DDFA™ amplifier technology DTS:X Low-latency streaming Dolby Atmos Qualcomm® aptX™ audio technology | 12 | Linux |
AVR | Quad-core CPU | Qualcomm® Adreno™ 306 GPU | 2x Qualcomm® Hexagon™ DSP | V66 800 MHz with low power island | V66 700 MHz with Qualcomm® AI Engine | 1.4 GHz | 802.11ax-ready 802.11ac | Dual-band simultaneous (DBS) | Bluetooth 5.1 | Zigbee | 4-microphone far-field voice pickup noise cancellation Low-power standby with voice wakeup | Qualcomm® DDFA™ amplifier technology DTS:X Low-latency streaming Dolby Atmos Qualcomm® aptX™ audio technology | 32 | Linux |