It features a PDM to PCM conversion for microphone acquisition and either PCM to PWM output or PCM to PDM output depending on the application needs. This generation of stereo Audio CODEC is also provided with a large set of options enabling the user to build an optimised solution.
The sCODi-MT1-DS.01 (with PWM output) and the sCODi-N1-DS.01 (with PDM output) achieve SNR performances as high as 100 dB on the acquisition path (PDM to PCM) and 105 dB on the emission path (PCM to PWM/PDM).
Key features include:
Multi-channel capabilities with embedded synchronisation and audio phase alignment
Support of multi-mode digital microphones
8-bit looped pattern generation to control external amplifiers
Anti pop-up noise control signal
Spread-spectrum feature for safe integration with RF transceivers
Optional delivery with a voice trigger enabling the detection of the presence of voice to wake-up the rest of the SoC
Full logic design, enabling test cost savings with pure logic SCAN test
These new products are delivered with a set of application schematics enabling the user to assemble an optimised solution for the required performance while guaranteeing the lowest BoM cost. Their flexibilities enable supporting a large set of output peripherals, such as:
Sound amplifiers with analogue inputs
Sound amplifiers with digital inputs
Line output (up to 6 Vrms)
16/32/50 Ω headphones
Dolphin Integration; www.dolphin-ip.com