QCS400 Series
QCS400 Series
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QCS400

Designed specifically for smart audio 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® QCS400 series of audio System-on-Chips (SoCs) are designed specifically to help further support the voice UI enabled smart home and audio ecosystem, and meet the converging technology needs of end products that combine audio, connectivity, and display features together.

The advanced QCS400 series SoCs are based on our high performance, low-power system architecture and are designed specifically to help customers meet the growing demand for smarter speakers, smart home assistants, soundbars, and audio visual receivers (AV...

Qualcomm QCS400 SoCs are products of Qualcomm Technologies, Inc. and/or its subsidiaries.

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Benefits
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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.

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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 designed for high performance and low-power keyword detection.

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Next-generation Voice UI

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

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Low-power optimization

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

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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.

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Industry-leading connectivity

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

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Innovation at all tiers

The QCS400 series includes SoC variants at multiple tiers to help OEMs scale across a range of smart audio product types and applications.

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Development support

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

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Product

Qualcomm® Artificial Intelligence (AI) Engine

GPU Name

CPU Number of Cores

Qualcomm® Hexagon™ Processor Name

LR-WPAN

Protocol

CPU

Clock Speed

DSP

Compute

Wi-Fi

Standards

Bluetooth

Specification Version

Audio

Audio Capturing Technologies

Voice Services

Voice UI

Software Options

Operating System

IoT

Voice and Music Applications

Other

QCS407

Qualcomm® Adreno™ 306

4

2x Qualcomm® Hexagon™

Zigbee

Up to 1.4 GHz

V66 800 MHz with low power island
V66 700 MHz with Qualcomm® AI Engine

802.11ax (ready)
802.11ac

Bluetooth® 5.1

Qualcomm® DDFA™ amplifier technology

4-microphone far-field voice pickup noise cancellation
Low-power standby with voice wakeup

Linux

AVR

QCS403

—

2

2x Qualcomm® Hexagon™

Zigbee

Up to 1.4 GHz

V66 800 MHz with low power island
V66 700 MHz with Qualcomm® AI Engine

802.11ac
802.11ax (ready)

Bluetooth® 5.1

Qualcomm® DDFA™ amplifier technology

Low-power standby with voice wakeup
4-microphone far-field voice pickup noise cancellation

Linux

Smart Assistant
Smart Speakers

QCS405
Active

Qualcomm® Adreno™ 306

4

2x Qualcomm® Hexagon™

Zigbee

Up to 1.4 GHz

V66 800 MHz with low power island
V66 700 MHz with Qualcomm® AI Engine

802.11ax (ready)
802.11ac

Bluetooth® 5.1

Qualcomm® DDFA™ amplifier technology

4-microphone far-field voice pickup noise cancellation
Low-power standby with voice wakeup

Linux

Smart Speakers
Soundbars & Home Theater

QCS404

—

4

2x Qualcomm® Hexagon™

Zigbee

Up to 1.4 GHz

V66 800 MHz with low power island
V66 700 MHz with Qualcomm® AI Engine

802.11ac
802.11ax (ready)

Bluetooth® 5.1

Qualcomm® DDFA™ amplifier technology

Low-power standby with voice wakeup
4-microphone far-field voice pickup noise cancellation

Linux

Smart Speakers

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    Purpose-built platforms using the QCS400 series.

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