QCC3020 - Low-cost Earbud Reference Design

Low-cost Occluded Earbud Reference Design for truly wireless earbuds

The process of developing low-power, compact and feature-rich affordable truly wireless earbuds can be complex and challenging for manufacturers trying to achieve a balance between....

more

The process of developing low-power, compact and feature-rich affordable truly wireless earbuds can be complex and challenging for manufacturers trying to achieve a balance between....

more

The process of developing low-power, compact and feature-rich affordable truly wireless earbuds can be complex and challenging for manufacturers trying to achieve a balance between cost and functionality.

The Qualcomm® QCC3020 - Low-cost, Occluded Earbud Reference Design with Qualcomm TrueWireless™ Stereo is designed specifically to help reduce development t....

more

The process of developing low-power, compact and feature-rich affordable truly wireless earbuds can be complex and challenging for manufacturers trying to achieve a balance between cost and functionality.

The Qualcomm® QCC3020 - Low-cost, Occluded Earbud Reference Design with Qualcomm TrueWireless™ Stereo is designed specifically to help reduce development time and provide a proof of concept low-cost design for manufacturers.

Qualcomm QCC3020 and Qualcomm TrueWireless Stereo are products of Qualcomm Technologies, Inc. and/or its subsidiaries.

Product license agreement

Robust connectivity

Qualcomm TrueWireless Stereo support with relay scheme and single Bluetooth Address management helps to provide more robust connectivity and a virtually seamless user experience.

High quality audio

Qualcomm® aptX™ audio codec support for CD-like music audio quality.

Crystal clear voice calls

Qualcomm® cVc™ Echo Cancelling and Noise Suppression Technology designed to help suppress background noise and echo feedback for voice calls.

Extended battery life

Reduced power consumption for extended battery life.

Comprehensive development solution

Comprehensive Hardware and Software package with no ADK/ Qualcomm® Bluelab™ SDK license required.

Block Diagram

Occluded Earbud Reference Design

Included with the reference design:

  • Welcome guide
  • Earbuds and charging case
  • Ear interface rubbers in sizes small, medium and large

Features

  • Based on QCC3020, which provides the same extremely low-power performance as Qualcomm® QCC5100-series for extended playback time and battery life

  • Software delivered as fixed binary using Qualcomm® ADK 19.3 (with support for single Bluetooth address) and is designed to be programmed via simple command line application

  • 1 mic cVc Echo Cancelling and Noise Suppression Technology designed for superior audio when in a voice call

  • aptX audio playback support for music

  • Support for role swapping when out of charging case

  • Single-chip Bluetooth containing the power management, audio DSP, application processor, Bluetooth RF, GPIO and audio inputs and outputs

  • 1 button control and LED user interface

  • 6mm speakers to handle audio to support comprehensive range frequency response audio play back in a small form factor

  • Ear interface rubbers supplied in small, medium and large sizes

  • Support for Voice Prompts

  • Earbud design based on lowest cost 4-layer board

  • 40mAh battery in earbud

  • 280mAh battery in charger

  • Support for software updates OTA

Specifications

Bluetooth

Bluetooth Audio: Qualcomm TrueWireless™ Technology

Bluetooth Version: Bluetooth 5.1

Bluetooth Radio: Up to +8dBm output power (typical), -95dBm receiver sensitivity

A2DP Playback: >7 Hrs

Voice Services

Digital Assistant Activation: N/A

General Audio

Audio Technology: Qualcomm TrueWireless™ Technology, Qualcomm® aptX™ audio technology

Qualcomm® cVc™ noise cancellation technology: 1-mic Speaker

Power Consumption

Amperage: ~5.5mA A2DP stream

Part

Part Number(s): DK-QCC3020-EarbudRD-A-0

Development Board Hardware

Antenna Performance Efficiency: >10%

FCC Pre-Scan 8dBm: Pass

  1. Based on average power consumption detailed in note
  2. Power consumption based on average of primary and secondary earbuds, no LED, 32ohm load, speaker output 90dBSPL, AAC codec at 44.1kHz. Test results based on internal testing

Qualcomm QCC5100, Qualcomm ADK, Qualcomm aptX, Qulacomm cVc and Qualcomm BlueLab are products of Qualcomm Technologies, Inc. and/or its subsidiaries. 

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