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  • The STA321MPL1 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.

    The STA321MPL1 has six digital microphone inputs, providing connections for up to three dual-membrane microphones.

    Key Features

    • 8 digital processing channels each 24-bits
      • 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

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STMicroelectronics - STA321MPL1

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Quality and Reliability

Part Number Marketing Status Package Grade RoHS Compliance Grade Material Declaration**
STA321MPL1TR
NRND
LQFP 64 10x10x1.4 Industrial Ecopack1 (*)

STA321MPL1TR

Package:

LQFP 64 10x10x1.4

Material Declaration**:

Marketing Status

NRND

Package

LQFP 64 10x10x1.4

Grade

Industrial

RoHS Compliance Grade

Ecopack1 (*)

(**) 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.

Sample & Buy

Part Number
Order from Distributors
Order from ST
Marketing Status
ECCN (US)
ECCN (EU)
Packing Type
Package
Temperature (°C) Country of Origin
Budgetary Price (US$)*/Qty
min
max
STA321MPL1TR Available at 2 distributors

Distributor availability ofSTA321MPL1TR

Distributor Name
Region Stock Min. Order Third party link
DIGIKEY WORLDWIDE 25 1 Order Now
AVNET AMERICA 1000 0 Order Now

Distributor reported inventory date: 2020-11-30

Distributor Name

DIGIKEY

Stock

25

Min.Order

1

Region

WORLDWIDE Order Now

AVNET

Stock

1000

Min.Order

0

Region

AMERICA Order Now

Distributor reported inventory date: 2020-11-30

Buy Direct
NRND
EAR99 NEC Tape And Reel LQFP 64 10x10x1.4 -40 90 MALAYSIA

STA321MPL1TR

Marketing Status

NRND

ECCN (US)

EAR99

Budgetary Price (US$)*/Qty

Distributor availability ofSTA321MPL1TR

Distributor Name
Region Stock Min. Order Third party link
DIGIKEY WORLDWIDE 25 1 Order Now
AVNET AMERICA 1000 0 Order Now

Distributor reported inventory date: 2020-11-30

Distributor Name

DIGIKEY

Stock

25

Min.Order

1

Region

WORLDWIDE Order Now

AVNET

Stock

1000

Min.Order

0

Region

AMERICA Order Now

Distributor reported inventory date: 2020-11-30

ECCN (EU)

NEC

Packing Type

Tape And Reel

Package

LQFP 64 10x10x1.4

Operating Temperature (°C)

(min)

-40

(max)

90

Budgetary Price (US$)* / Qty

Country of Origin

MALAYSIA

(*) Suggested Resale Price per unit (USD) for BUDGETARY USE ONLY. For quotes, prices in local currency, please contact your local ST Sales Office  or our Distributors