The Bluetooth audio profiles include Advanced Audio Distribution Profile, Audio Visual Remote Control Profile 1.5, Hands-Free Profile 1.6 with Wideband speech, and Headset Profile.
All modules implement the Serial Port Profile (SPP) for data communications with devices such as Android-based smartphones and tablets or Windows Mobile devices.
An optional version of iWRAP6 that supports Apple iAP1 and iAP2 for data and combined data/audio applications with iOS devices is available for Apple MFI licensees only.
The WT32i is pin compatible with the WT32 for easy design migration. The module contains CSR’s BlueCore5-Multimedia single-chip radio and baseband IC, a 26MHz crystal, internal reset circuitry, a balanced filter, 16Mbit Flash memory, and the optional internal antenna. A built-in battery charger is also provided.
The module presents a UART host interface and has audio interfaces including analogue, I2S, and an IEC60958 digital audio interface that supports AES/EBU and SPDIF standards. 10 software-programmable I/O pins are provided.
As a cost-effective, full-featured Bluetooth audio module, designed to allow substantially easier integration than similar solutions on the market, the WT32i is ideal for wireless stereo speakers and sound bars, hi-fi equipment, hands-free kits, and stereo headsets.
Basing a new design on the WT32i brings the advantage of comprehensive approvals including Bluetooth end-product certification, CE mark, US FCC part 15 and Industry Canada qualifications, and KCC and MIC certifications applicable in Korea and Japan.