Akustica BMU563R, BMU551R, & BMU537R

BMU551R & BMU563R Single-Ended Analog-Output Microphones

• High performance 66 dB SNR
• Less than 1% THD up to 118dB SPL
• Ultra-low power 60μA in full performance mode (BMU551R)
• Highly robust top- (BMU551R) or bottom-port (BMU563R) metal-lid packages
• Industry standard form factors enable easy upgrading of current designs
• Lead-free, RoHS2 compliant, and Halogen Free in accordance with IEC62020-2-21

BMU537R Differential Analog-Output Microphone

• High performance 66 dB SNR
• High 130dB AOP with less than 1% THD up to 124dB SPL
• Highly robust, bottom-port metal-lid package
• Industry standard form factors enable easy upgrading of current designs
• Lead-free, RoHS2 compliant, and Halogen Free in accordance with IEC62020-2-21

• Smartphones which require high quality acoustic performance
• Voice-activated set-top boxes, smart speakers, and remote controls
• Smart-home sensor hubs and IoT acoustic sensor nodes

The BMU551R, BMU563R, and BMU537R are high-performance, highly robust analog-output microphones that match industry standard footprints and enable a straightforward performance upgrade of current designs. All three microphones are housed in mechanically and electrically robust metal-lid packages that both enable the microphones to withstand the many stresses of manufacturing and provide additional RF rejection in wireless frequency bands.

The BMU551R (top-port) & BMU563R (bottom-port) deliver a superior 66dB signal-to-noise ratio (SNR) with a single-ended analog output while also providing <1% total harmonic distortion (THD) up to 118dB SPL. Additionally, the BMU551R draws a low 60μA in full performance mode.

The BMU537R (bottom-port) is a differential-output analog microphone with an excellent 66dB SNR and a high acoustic overload point (AOP) of 130dB SPL. The differential analog-output provides the additional benefit of minimizing audio signal corruption from nearby components.