According to Dialog the new device brings high end professional headset features to the volume consumer headset market. Other features include: ambient and echo noise cancellation, virtual surround sound and voice control. The IC is able to support up to 6 microphones for beam forming, enabling position-aware applications.
The SmartBeat DA14195 integrates a 32-bit ARM Cortex-M0 microcontroller operating up to 165 MHz and C-programmable 32-bit Cadence (Tensilica) HiFi 3 DSP operating to 290 MHz – a combination that has enabled a small, high-performance, low-power solution. The MCU speed can be scaled to further reduce power consumption and the DSP is supported by a wide range of 3rd-party audio algorithms.
With an integrated step-down converter, the DA14195 can be powered directly from USB, or by batteries ranging from 1.9 to 5 V. A high-precision fuel gauge is able to maximise battery lifetime and means that users always know how much play time they have left. The DA14195’s shared memory architecture comprises onboard cache, system RAM and DSP RAM. For maximum design flexibility, the MCU code and DSP code is stored in external QSPI Flash memory so memory size and cost can be tailored to the application.
The DA14195 is an open audio platform that can be combined with any audio codec including Dialog’s DA7217. This advanced codec offers an outstanding power/ performance ratio and includes a voice trigger function that can monitor for voice commands before waking up the DA14195 to start command interpretation.
The device’s modular and open software architecture ensures a highly versatile and easily extendible software platform. It provides all the building blocks needed plus the flexibility for designers to create their own unique solutions. Power management is a core component, while the flexible audio API facilitates setting up multiple streams independently. Software is available as source code, so can be fully customised.
The DA14195 is sampling now in a small form factor 81-ball, 0.4mm wafer-level chip-scale package (WLSCP). Production quantities will be available in the fourth quarter of 2016.
