Echo ATS-BT
Bluetooth Adapter
The Echo ATS-BT™ is a high-performance Bluetooth 5.4 audio and data module designed to seamlessly integrate with the Echo ATS (Acoustic Test System). The ATS-BT provides comprehensive Bluetooth functionality for testing and measurement applications, supporting both Classic and LE Audio protocols.
The ATS-BT is ideal for developers who want to quickly and cost-effectively integrate high-performance Audio and Data Bluetooth functionality into their testing workflows. It supports multiple device connections with multiple profiles, including the new LE Audio Unicast and Auracast (Broadcast) technologies. With ultra-low latency (20ms) for Unicast and the ability to transmit 4 independent Auracast audio streams, the ATS-BT delivers professional-grade Bluetooth testing capabilities.
The module integrates with the ATS (or other) interface via SPDIF digital audio connection, providing seamless audio routing for comprehensive acoustic testing scenarios.

Bluetooth Specifications
Bluetooth Standard: Bluetooth 5.4
Frequency Band: 2,402 MHz to 2,480 MHz
Modulation: 8 DPSK, PI/4 DQPSK, GFSK
Maximum Data Rate: 3Mbps (typical 1.6Mbps)
Operating Range: 25m
RF Sensitivity: 0.1% BER at -97dBm (Typical)
Transmit Power: Max 9dBm
Supported Profiles & Features
Classic Bluetooth Profiles: HFP, HSP, AG-HFP, A2DP Sink, A2DP Source, AVRCP, SPP, HID
LE Audio: Unicast and Auracast (Transmit and Receive)
Ultra Low Latency: 20ms Unicast
Auracast Capability: Transmit 4 independent audio streams
Concurrent: BLE and Classic Bluetooth operation
Multiple Connections: Receiver or Transmitter modes
Audio Features
Digital Audio: SPDIF interface
Classic Codecs: Snapdragon Sound (aptX, aptX HD, aptX Lossless), AAC, SBC
LE Audio Codec: LC3
Speech: Ultra and Super Wide Band Speech
Echo Cancellation: Bluetooth, Wired, and USB
Stereo Separation: Min: 80dB
Form Factor and Connectivity
Size: 3” × 1’ × 3.125’
Interfaces: UART, USB, SPDIF
Antenna: Integrated chip antenna
SPDIF Connectors: Molex 0395040003, Phoenix 1715400 (HDBNC female)
Required Cables: 75 ohm HDBNC SDI cables with HDBNC male connector (example: Laird HDBNC1855-B06)
Module Attribution
Module Attribution
The ATS-BT utilizes the IDC777-1 Bluetooth module from IOT747, providing advanced Bluetooth 5.4 capabilities including LE Audio (LC3 codec with Auracast and Unicast) and Classic Bluetooth with Snapdragon Sound (aptX, aptX HD, aptX Lossless) support. For detailed IDC777 technical specifications and documentation, visit the IOT747 documentation page.
