Additional Resources: Product Page date 04/02/2020 page 1 of 7 MODEL: DEVKIT-ECM-001 DESCRIPTION: MICROPHONE DEVELOPMENT KIT FEATURES * * * * 4 detachable evaluation boards 1 analog MEMS that is compatible for ECM drop-in replacement 1 noise cancelling, 1 unidirectional, & 1 omnidirectional ECM included plated through hole I/O terminals for multiple testing options EVAL BOARD circuit technology output acoustic size sensitivity current port dia (mm) typ (dB) typ (A) CMM-3312AT-44308-TR MIC5 MEMS analog top 3.3 -44 80 CMR-2747PB-A MIC6 ECM analog top 6.0 -47 500 CMC-6015-47P MIC7 ECM analog top 6.0 -47 500 CMC-4013-SMT-TR MIC8 ECM analog top 4.0 -42 500 OPERATIONAL INSTRUCTIONS The CUI Devices electret condenser microphone (ECM) evaluation board consists of four independent microphone evaluation circuits. One of the microphones is constructed to be noise cancelling, one is constructed to provide unidirectional sound capture, one is constructed to provide omnidirectional sound capture and the fourth microphone is an analog output MEMS microphone with the two pin connections configured in a similar manner to the ECMs. External bypass capacitors are included on the power supply rails of the evaluation boards and DC blocking capacitors are placed in the analog output signal paths. A DC power supply of 2~10 Volts should be connected between the VDD and GND pins for the ECM evaluation circuits. A DC power supply of 1.6~3.6 Volts should be connected between the VDD and GND pins for the MEMS microphone evaluation circuit. The recommended operating voltage for all of the evaluation boards is 2 V. Please refer to the respective data sheets for additional information regarding each of the microphones. cuidevices.com Additional Resources: Product Page CUI Devices MODEL: DEVKIT-ECM-001 DESCRIPTION: MICROPHONE DEVELOPMENT KIT date 04/02/2020 page 2 of 7 CIRCUIT DIAGRAMS & BOARD LAYOUTS Vdd5 Vdd6 C12 1 Out R1 1k C11 1 1 Out Out5 GND Vdd7 Vdd8 C32 Out R3 2.2k C31 1 GND CMC-6015-47P MIC7 cuidevices.com R2 2.2k C21 1 GND CMM3312AT-44308-TR MIC5 C C22 CMR-2747PB-A MIC6 C42 C Out Out7 R4 2.2k C41 1 GND Out6 Out8 CMC-4013-SMT-TR MIC8 Additional Resources: Product Page CUI Devices MODEL: DEVKIT-ECM-001 DESCRIPTION: MICROPHONE DEVELOPMENT KIT date 04/02/2020 page 3 of 7 CMM-3312AT-44308-TR WWW.CUIDEVICES.COM/PRODUCT/AUDIO/MICROPHONES/MEMS-MICROPHONES/CMM-3312AT-44308-TR ELECTRICAL parameter conditions/description directivity omnidirectional sensitivity (S) at 94 dB SPL, 1 kHz supply voltage (VDD) current consumption (IDSS) VDD = 2.0 V sensitivity reduction VDD = 3.6 ~ 1.6 V frequency (f) min typ max units -47 -44 -41 dB 1.6 2.0 3.6 V 80 A -0.5 dB 100 10,000 at 94 dB SPL, 1 kHz (A-weighted) total harmonic distortion (THD) at 94 dB SPL, 1 kHz 0.2 % acoustic overload point (AOP) at 10% THD, 1 kHz 105 dB SPL output impedance (Zout) at 1 kHz Notes: 58 Hz signal to noise ratio (S/N) dBA 300 1. All specifications measured at 232C, humidity at 5520%, unless otherwise noted. FREQUENCY RESPONSE CURVE F re q u e n c y R e s p o n s e (0 d B = 1 V /P a ) +25dB +20dB Sensitivity(dB) +15dB +10dB +5dB 0dB -5 d B -1 0 d B -1 5 d B -2 0 d B -2 5 d B 100 200 500 1K F re q u e n c y (H z ) cuidevices.com 2K 5K 10K Additional Resources: Product Page CUI Devices MODEL: DEVKIT-ECM-001 DESCRIPTION: MICROPHONE DEVELOPMENT KIT date 04/02/2020 page 4 of 7 CMR-2747PB-A WWW.CUIDEVICES.COM/PRODUCT/AUDIO/MICROPHONES/ELECTRET-CONDENSER-MICROPHONES/CMR-2747PB-A ELECTRICAL parameter conditions/description directivity noise cancelling sensitivity (S) at 94 dB SPL, 1 kHz supply voltage (VDD) typ max units -50 -47 -44 dB 10.0 V 500 A 2.0 current consumption (IDSS) VDD = 2.0 V sensitivity reduction VDD = 2.0 ~ 1.5 V -3 frequency (f) 100 signal to noise ratio (S/N) at 94 dB SPL, 1 kHz (A-weighted) total harmonic distortion (THD) at 94 dB SPL, 1 kHz acoustic overload point (AOP) at 10% THD, 1 kHz output impedance (Zout) at 1 kHz Notes: min dB 20,000 56 10 1. All specifications measured at 232C, humidity at 5520%, unless otherwise noted. FREQUENCY RESPONSE CURVE cuidevices.com Hz dBA % 110 dB SPL 2,200 Additional Resources: Product Page CUI Devices MODEL: DEVKIT-ECM-001 DESCRIPTION: MICROPHONE DEVELOPMENT KIT date 04/02/2020 page 5 of 7 CMC-6015-47P WWW.CUIDEVICES.COM/PRODUCT/AUDIO/MICROPHONES/ELECTRET-CONDENSER-MICROPHONES/CMC-6015-47P ELECTRICAL parameter conditions/description directivity unidirectional sensitivity (S) at 94 dB SPL, 1 kHz supply voltage (VDD) typ max units -50 -47 -44 dB 10.0 V 500 A 2.0 current consumption (IDSS) VDD = 2.0 V sensitivity reduction VDD = 2.0 ~ 1.5 V -3 frequency (f) 100 signal to noise ratio (S/N) at 94 dB SPL, 1 kHz (A-weighted) total harmonic distortion (THD) at 94 dB SPL, 1 kHz acoustic overload point (AOP) at 10% THD, 1 kHz output impedance (Zout) at 1 kHz Notes: min dB 20,000 56 10 1. All specifications measured at 232C, humidity at 5520%, unless otherwise noted. FREQUENCY RESPONSE CURVE cuidevices.com Hz dBA % 110 dB SPL 2,200 Additional Resources: Product Page CUI Devices MODEL: DEVKIT-ECM-001 DESCRIPTION: MICROPHONE DEVELOPMENT KIT date 04/02/2020 page 6 of 7 CMC-4013-SMT-TR WWW.CUIDEVICES.COM/PRODUCT/AUDIO/MICROPHONES/ELECTRET-CONDENSER-MICROPHONES/CMC-4013-SMT-TR ELECTRICAL parameter conditions/description directivity omnidirectional sensitivity (S) at 94 dB SPL, 1 kHz supply voltage (VDD) typ max units -45 -42 -39 dB 10.0 V 500 A 2.0 current consumption (IDSS) VDD = 2.0 V sensitivity reduction VDD = 2.0 ~ 1.5 V -3 frequency (f) 100 signal to noise ratio (S/N) at 94 dB SPL, 1 kHz (A-weighted) total harmonic distortion (THD) at 94 dB SPL, 1 kHz acoustic overload point (AOP) at 10% THD, 1 kHz output impedance (Zout) at 1 kHz Notes: min dB 20,000 58 10 1. All specifications measured at 232C, humidity at 5520%, unless otherwise noted. FREQUENCY RESPONSE CURVE cuidevices.com Hz dBA % 118 dB SPL 2,200 Additional Resources: Product Page CUI Devices MODEL: DEVKIT-ECM-001 DESCRIPTION: MICROPHONE DEVELOPMENT KIT date 04/02/2020 page 7 of 7 REVISION HISTORY rev. description date 1.0 initial release 05/14/2019 1.01 brand update 04/02/2020 The revision history provided is for informational purposes only and is believed to be accurate. CUI Devices offers a one (1) year limited warranty. Complete warranty information is listed on our website. CUI Devices reserves the right to make changes to the product at any time without notice. Information provided by CUI Devices is believed to be accurate and reliable. However, no responsibility is assumed by CUI Devices for its use, nor for any infringements of patents or other rights of third parties which may result from its use. CUI Devices products are not authorized or warranted for use as critical components in equipment that requires an extremely high level of reliability. A critical component is any component of a life support device or system whose failure to perform can be reasonably expected to cause the failure of the life support device or system, or to affect its safety or effectiveness. cuidevices.com