Bluegiga has developed a Bluetooth audio module, designed in order to minimise the number of external components required, and aimed at a broad range of applications requiring short-range stereo or mono audio capabilities.
The WT32 module is equipped with a Bluetooth radio, integrated antenna/connector, 16-bit stereo codec, embedded DSP and a battery charger. It also has Bluetooth end product certification as well as CE and FCC approvals, minimising the amount of additional RF testing demands on developers.
The 16-bit dual ADC and DAC stereo codec are able to sample audio with rates up to 48 kHz and have integrated amplifiers for driving speakers. The low power DSP core can be loaded with additional DSP algorithms that provide audio enhancement, noise cancellation and for example, speech to text capabilities.
The module is available with two different antenna versions: WT32-A is equipped with an integrated chip antenna and WT32-E with a W.FL antenna connector. An evaluation kit includes completely integrated printed circuit board with WT32-A Bluetooth audio module on it, high quality audio headphones and cables for module firmware configurations and system testing.
All WT32 modules are packed with Bluegiga's iWRAP firmware, which makes the use of Bluetooth wireless technology really simple. The iWRAP firmware implements advanced audio distribution profile (A2DP), audio video remote control profile (AVCRCP), hands-free (HFP), serial port profile (SPP), human interface device (HID), object push profile (OPP) and device ID (DI) Bluetooth profiles. In addition, iWRAP can be configured to function completely autonomously without any external processors.
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