STEVAL-MKI126V2 Datasheet, PDF (1/8 Pages) STMicroelectronics – Up to 10 independent 32-bit user

STEVAL-MKI126V2
MEMS microphone system evaluation board
based on the STA321MPL and MP34DB01
Data brief
Features
• 2 MP34DB01 MEMS microphones
• Capable of driving up to 6 digital MEMS
microphones
• 3 independent I²S outputs
• Up to 10 independent 32-bit user
programmable biquads per channel
• Fully configurable with:
– STEVAL-MKI29V1/V2/V3
– STEVAL-MKI131V1/V2/V3
– STEVAL-MKI116V1
– STEVAL-MKI117V1/V2
– STEVAL-CCA035V1
• Controllable via APWorkbench software suite
• RoHS compliant
Description
The STEVAL-MKI126V2 system evaluation board
can connect up to six microphones using the
sockets provided or through a dedicated six-
microphone array.
The digital interface of the device allows
interfacing the MIC output to the most widely used
audio receivers and digital amplifiers or simple
evaluation of the MIC using generic audio
measurement equipment. The filtered PWM
signals allow the connection of a headset to listen
to the audio received through the microphones.
The fully digital path ensures a high level of
processing with sound preconditioning, filtering
and voice enhancement.
The main purpose of the STEVAL-MKI126V2 is to
convert the PDM signals provided by the
microphones into the more common I²S and
PWM signals. The I²S signal is routed both on
general and interface connectors, while the
suitably-filtered PWM signals provide an analog
interface.
Mounted on the STEVAL-MKI126V2 are two
MP34DB01 microphones and an STA321MPL
processor.
November 2013
DocID025251 Rev 1
For further information contact your local STMicroelectronics sales office.
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