Description
●The STA321MP is a PDM high-performance multichannel processor with ultra-low quiescent current designed for general-purpose digital microphone applications. The device is fully digital and is comprised of three main sections. The first section is the PDM input interface which can
●accept up to six serial digital inputs. The second section is a high-quality audio processor allowing
●flexible channel mixing/muxing and provides up to 10 biquads for general sound equalization and
●voice enhancement with independent volume control.
●Features
●■ 8 digital processing channels each 24-bit
●– 6 channels of PDM input
●– 2 additional virtual channels
●■ >100 dB SNR and dynamic range
●■ Digital gain/attenuation +58 dB to -100 dB in 0.5 dB steps
●■ Soft volume update
●■ Individual channel and master level control
●■ Up to 10 independent 32-bit user
●programmable biquads (EQ) per channel
●■ Bass/treble tone control
●■ Pre- and post-EQ full 8-channel input mix on all 8 channels
●■ Dual independent limiters/compressors
●■ Dynamic range compression or anti-clipping modes
●■ Individual channel and master soft/hard mute
●■ 3 I2S data outputs
●■ I2S data output channel mapping function
●■ Independent channel volume and DSP bypass
●■ Channel mapping of any input to any processing channel
