Qualcomm S3 Gen 2 Sound Platform supports LE Audio and Auracast broadcast audio

The Qualcomm S3 Gen 2 Sound Platform (QCC5181) is a Bluetooth 5.4 audio solution designed for dongles and adapters with ultra-low latency (<20 ms) and support for the latest LE Audio and Auracast broadcast audio standards.

The platform was introduced last year, but the company says it has now launched a “newly enhanced solution” optimized for gaming that “combines Snapdragon Sound and LE Audio to deliver ultra-low latency of less than 20ms for lag-free wireless audio with voice back-channel for in-game chat”. The new solution also focuses on USB dongles and adapters since few hosts support Bluetooth 5.4 at this time.

Qualcomm S3 Gen 2 Sound Platform

Qualcomm S3 Gen 2 (QCC5181) Sound Platform specifications:

  • CPU – Dual-core 32-bit microcontroller clocked at up to 80 MHz
  • DSP – Qualcomm Kalimba DSP @ 240 MHz with 384 kB program RAM, 1,024kB data RAM
  • Storage – External QSPI flash
  •  Connectivity
  • Audio
    • Qualcomm aptX audio playback support – aptX Voice, aptX Adaptive at up to 96Khz audio resolution, aptX Lossless
    • Qualcomm Active Noise Cancelling (ANC) technology – Feedback, Adaptive, Feedforward, Hybrid
    • Qualcomm cVc Echo Cancellation and Noise Suppression (ECNS) technology: 1 to 3-mic earbuds
    • Qualcomm TrueWireless Mirroring technology
    • Voice Services Support – Amazon Alexa Voice Service, Google Assistant
    • Digital Assistant Activation – Button press, Qualcomm Voice Activation
    • Audio Playback – 1-channel (mono) Class-AB or Class-D
    • Audio inputs – 4x analog microphone inputs
    • 24-bit/96kHz high-resolution audio
    • Lossless audio up to 48 kHz with Snapdragon Sound
  • Power Consumption – <4 mA during music streaming (A2DP)
  • Package – 99-pin WLCSP with 0.4mm pitch (4.93 x 3.936 x 0.57mm)

The new dongles and adapters will be paired with the Qualcomm S5 and S3 Gen 2-based earbuds and headsets that were introduced at the Snapdragon Summit 2022 as shown in the video embedded below.

YouTube video player

More details about the Qualcomm S3 Gen 2 Sound Platform can be found in the press release and the product page.

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