QCS405

QCS405

Designed specifically for premium smart speaker and soundbar applications with an unparalleled level of integration and next-generation Voice UI compared to our previous SoCs, enhanced with our cutting-edge Qualcomm® AI Engine.

The Qualcomm® QCS405 System-on-Chip (SoC) is designed to bring a wealth of new capabilities and smart functionality to smart speakers and soundbars.

QCS405 is part of our Qualcomm®....

more

The Qualcomm® QCS405 System-on-Chip (SoC) is designed to bring a wealth of new capabilities and smart functionality to smart speakers and soundbars.

QCS405 is part of our Qualcomm®....

more

The Qualcomm® QCS405 System-on-Chip (SoC) is designed to bring a wealth of new capabilities and smart functionality to smart speakers and soundbars.

QCS405 is part of our Qualcomm® QCS400 series of dedicated audio SoCs based on our high performance, low-power architecture, with on-device dual DSP, rich connectivity, visual display capabilities, and Qualcomm®....

more

The Qualcomm® QCS405 System-on-Chip (SoC) is designed to bring a wealth of new capabilities and smart functionality to smart speakers and soundbars.

QCS405 is part of our Qualcomm® QCS400 series of dedicated audio SoCs based on our high performance, low-power architecture, with on-device dual DSP, rich connectivity, visual display capabilities, and Qualcomm® Artificial Intelligence (AI) Engine. This advanced SoC is designed to significantly reduce overall BOM for complex, feature rich, voice-supported home audio products in the premiu....

more

Qualcomm QCS405 is a product of Qualcomm Technologies, Inc. and/or its subsidiaries.

Featured Documents
Product Brief

Ultimate audio experiences

Truly superior audio performance, with support for Dolby Atmos and DTS:X immersive home audio, Qualcomm® DDFA™ amplifier technology, and Qualcomm® aptX™ audio.

Advanced DSP

Dedicated high-performance audio DSP with hardware enhancement capable of up to 32-channels of audio post processing. Dual DSP cores and integrated Qualcomm AI Engine support high performance and low-power keyword detection.

Next-generation Voice UI

SoC designed to deliver configurable multi-keyword detection with Local Automatic Speech Recognition for customizable and "offline" user experiences, and multi-mic beamforming noise suppression with mono, stereo and multichannel echo cancellation.

Improved low-power performance

Supports new levels of performance for portable and battery-powered smart speakers compared to our previous SoCs, and helps reduce standby current requirements for mains-connected speakers or smart assistants.

Industry-leading integration

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 manufacturers to reduce BOM.

Industry-leading connectivity

Includes industry-leading connectivity with low-latency in-room/multi-room streaming and advanced Wi-Fi, Bluetooth and Zigbee coexistence technology

Features

  • Highly-integrated architecture, with four CPU cores, dual DSP, Wi-Fi, Bluetooth, powerful audio features, and our AI Engine on a single chip

  • Our AI Engine supports highly efficient on-device inferences and machine learning-based, embedded automatic speech recognition

  • Industry-leading connectivity with low-latency streaming and advanced Wi-Fi, Bluetooth, and Zigbee coexistence technology

  • Superior audio performance with support for Dolby Atmos and DTS:X immersive home 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

  • Compatible with DDFA amplifier technology and aptX audio

  • 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 to help meet the evolving needs of AVR space

  • Help to reduce product development time and cost, with our Audio Development Kit (ADK), and Software Evaluation Kit, as well as hardware reference designs

Specifications

Qualcomm® Artificial Intelligence (AI) Engine

AIE CPU: Quad-core CPU

AIE GPU: Qualcomm® Adreno™ 306 GPU

AIE DSP: 2x Qualcomm® Hexagon™ DSP

CPU

CPU Cores: Quad-core CPU

DSP

DSP Audio: V66 800 MHz with low power island

DSP Compute: V66 700 MHz with Qualcomm® AI Engine

DSP Technology: 2x Qualcomm® Hexagon™ DSP

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

Display

Max On-Device Display: FHD+

General Audio

Audio Technology: Qualcomm® DDFA™ amplifier technology, DTS:X, Low-latency streaming, Dolby Atmos, Qualcomm® aptX™ audio technology

Qualcomm® aptX™ audio playback support: Qualcomm® aptX™ Adaptive

Audio Playback

Channel output: 12

GPU

GPU Name: Qualcomm® Adreno™ 306 GPU

Security Support

Security Features: Secure voice

Interface

Supported Interfaces: PCIe, HDMI, I²C, Ethernet, SDIO, SPI, UART, USB 2.0, USB 3.0

Software Options

Operating System: Linux

Qualcomm Smart Audio Platform, Qualcomm AI Engine, Qualcomm Hexagon, Qualcomm Adreno, Qualcomm QCS400, Qualcomm DDFA and Qualcomm aptX are products of Qualcomm Technologies, Inc. and/or its subsidiaries.

Compare related products.

Product
QCS405
QCS403
QCS404
QCS407
Voice & Music ApplicationsAIE CPUAIE GPUAIE DSPDSP AudioDSP ComputeDSP Clock SpeedWi-Fi StandardsWi-Fi FeaturesBluetooth VersionLR-WPAN ProtocolVoice UIAudio TechnologyOperating System
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
Linux
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
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
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
Linux

Ready to get started?

Purpose-built platforms using the QCS400 series.

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