The STA321MP is a PDM, high-performance, multichannel processor with ultra-low quiescent current. It is 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. The last block is the I²S output interface which streams out the processed digital audio. The output interface can also be programmed for flexible channel mapping. The device offers some of the most commonly required audio enhancements such as programmable voice tuning and equalization, limiter/compressor for improved voice quality, multiband selection for customizable microphone usage, and configurable wind-noise rejection. The embedded digital processor allows the microphone processing to be offloaded from the main CPU or SoC to the device.
|DS8825: Scalable digital microphone processor||6.0||1 MB|
|AN3984: IIR filter design equations for Sound Terminal® devices||1.1||493 KB|
|AN3340: Loudspeaker characterization and compensation||1.3||3 MB|
|AN4146: STSmartVoice demonstration board STEVAL-MKI126Vx||2.0||3 MB|
|ST’s solutions for mobile devices||3.2||3 MB|
|STEVAL-MKI126V2||MEMS microphone evaluation board based on STA321MPL and MP34DB01 (microphone processor + digital uPhone MEMS)|
|Part Number||Package||Packing Type||Operating Temperature (°C) (min)||Operating Temperature (°C) (max)||Marketing Status||Unit Price (US$) *||Quantity||ECCN (EU)||ECCN (US)||Country of Origin||More info||Order from ST||Order from Distributors|
|STA321MPL||LQFP 64 10x10x1.4||Tray||-40||90||NRND : Not Recommended for New Design. Product is in volume production only to support customers ongoing production.||-||-||NEC||EAR99||-||MORE INFO||No availability reported, please contact our Sales office|
|STA321MPLTR||LQFP 64 10x10x1.4||Tape And Reel||-40||90||Active : Product is in volume production||3.551||1000||NEC||EAR99||MALAYSIA||MORE INFO||No availability reported, please contact our Sales office|
|STA321MPTR||VFQFPN 59 8x8x0.9||Tape And Reel||-40||90||Preview : Product is in design stage||-||-||NEC||EAR99||-||MORE INFO||No availability reported, please contact our Sales office|
|Part Number||Marketing Status||Package||Grade||RoHS Compliance Grade||Material Declaration**|
|STA321MPL||NRND||LQFP 64 10x10x1.4||Industrial||Ecopack1|
|STA321MPLTR||Active||LQFP 64 10x10x1.4||Industrial||Ecopack1|
|STA321MPTR||Preview||VFQFPN 59 8x8x0.9||Industrial||Ecopack3|
(**) The Material Declaration forms available on st.com may be generic documents based on the most commonly used package within a package family. For this reason, they may not be 100% accurate for a specific device. Please contact our sales support for information on specific devices.