Audio converter with voice detection feature for home appliances
The code builds a converter that focuses on voice recognition capabilities that include high Dynamic Range over gain range (DRgr) on ADC of 105 dB, a voice detection feature to automatically wake-up the system by voice, microphone inputs with independent Programmable Gain Amplifiers, and Automatic Gain Control (AGC) preventing saturation of the audio signal. Further, motor and wind noise filters to reduce the environment disturbance and enhance voice recognition quality.
The small area and the low EMI emission of sCODp-MT1-VD.02 position it as a cost-effective converter for fabless companies which are active in the growing market of white electronic devices (smart Air conditioner, smart Fridge…) and brown appliance devices (Smart TV, Smart Radio…).
sCODp-MT1-VD.02 includes unique features, such as spread spectrum and PLL-less functioning, to protect against any performance drop due to noise propagation issues. This product is delivered with its “noise tolerance template” and with advanced views (behavioural models) enabling noise propagation checks by the user.
Further specifications include high SNR of up to 105 dB on the DAC (depending on the sound amplifier); 95 dB on the ADC, and THD of -85 dB on the DAC
The IP is initially targeted at 130 nm processes, but is retargetable from 180 nm to 40 nm at both TSMC and SMIC.
Dolphin Integration; www.dolphin.fr
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