STA321MP is a high-performance multichannel processor from ST with ultra-low quiescent current designed for general-purpose digital microphone applications.
The STA321MP is a fully digital PDM high-performance multichannel processor designed for general-purpose digital microphone applications. It features up to six serial digital inputs (PDM) and two additional virtual channels, delivering over 100 dB of signal-to-noise ratio and dynamic range.
| Digital processing channels | 8 digital processing channels each 24-bit |
|---|---|
| PDM input channels | 6channels of PDM input |
| Signal-to-noise ratio (SNR) | >100 dB SNR and dynamic range |
| Digital gain/attenuation range | +58 dB to -100 dB in 0.5 dB steps |
| User-programmable biquads (EQ) | Up to 10 independent 32-bit user-programmable biquads (EQ) per channel |
| Output interface data streams | I2S data outputs |
The device is designed for general-purpose digital microphone applications.
It can accept up to six serial digital inputs via PDM.
The STA321MP is available in TQFP64 and VFQFPN56 packages.