STA321MP Scalable digital microphone processor
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. 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 offloading the microphone processing from the main CPU or SoC, moving it to the device.
技术特性
- 8 digital processing channels each 24-bit
- 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 订购信息
| 订购型号 |
产品状态 |
美金价格 |
数量 |
封装 |
包装形式 |
温度范围 |
材料声明 |
| STA321MPTR |
Preview |
|
|
VFQFPN 59 8x8x0.9 |
Tape And Reel |
-40 °C-90 °C |
STA321MPTR |
| STA321MPLTR |
Active |
|
|
LQFP 64 10x10x1.4 |
Tape And Reel |
-40 °C-90 °C |
STA321MPLTR |
| STA321MPL |
Active |
4 |
1000 |
LQFP 64 10x10x1.4 |
Tray |
-40 °C-90 °C |
STA321MPL |
| STA321MP |
Preview |
4 |
1000 |
VFQFPN 59 8x8x0.9 |
Tray |
-40 °C-90 °C |
STA321MP |
DATASHEET
| 下载 |
描述 |
版本 |
大小 |
| STA321MP |
DS8825: Scalable digital microphone processor |
1 |
710KB |
DATA BRIEF
| 下载 |
描述 |
版本 |
大小 |
| STA321MP |
Four-channel digital audio system with FFX™ driver |
1 |
95KB |
APPLICATION NOTES
| 下载 |
描述 |
版本 |
大小 |
| AN3340 |
AN3340: Loudspeaker characterization and compensation |
1 |
3944KB |
| AN3984 |
AN3984: IIR filter design equations for Sound Terminal® devices |
1 |
494KB |
