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

STA321MP屬于集成電路（IC） > 音頻專用。意法半導體（ST）集團制造生產(chǎn)的STA321MP音頻專用音頻專用的半導體器件專為音頻信號的濾波、驅動、放大、轉換和接口而設計。特征包括功能、應用、通道數(shù)、接口、電壓和規(guī)格。應用包括音頻系統(tǒng)、汽車音頻、消費類音頻、樂器、專業(yè)音頻、通信系統(tǒng)、電信系統(tǒng)、數(shù)字音頻、驅動器、前置放大器、信號混合、信號處理、語音觸發(fā)器解決方案和 10 Base-T。