DEVKIT-ECM-001 CUID

Document overview

  • Manufacturer or author: Provided By www.digicamel.com(free datasheet download site)
  • PDF pages: 7

Technical content

MODEL: DEVKIT-ECM-001 | DESCRIPTION: MICROPHONE DEVELOPMENT KIT cuidevices.com

FEATURES

  • 4 detachable evaluation boards
  • 1 noise cancelling, 1 unidirectional, & 2 omnidirectional ECM’s 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 (μA) CMC-2742PBJ-A MIC5 ECM analog top 6.0 -42 400 CMR-2747PB-A MIC6 ECM analog top 6.0 -47 500 CMC-6015-47P MIC7 ECM analog top 6.0 -47 500 CMEJ-0413-42-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, and 2 are constructed to provide omnidirectional sound capture. 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. 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. Additional Resources: Product Page

CUI DEVICES | MODEL: DEVKIT-ECM-001 | DESCRIPTION: MICROPHONE DEVELOPMENT KIT date 04/13/2023 | page 2 of 7 cuidevices.com CIRCUIT DIAGRAMS & BOARD LAYOUTS

2 MIC5

2 MIC7

2 MIC6

2 MIC8

2.21k OUT6 25V 1uF 25V 1uF VDD7 2.21k OUT7 25V 1uF 25V 1uF VDD8 2.21k OUT8 25V 1uF GND6 GND7 GND8 R4R3 R2R1 C8C7 C6C5 MIC8MIC7 MIC6MIC5 Additional Resources: Product Page

CUI DEVICES | MODEL: DEVKIT-ECM-001 | DESCRIPTION: MICROPHONE DEVELOPMENT KIT date 04/13/2023 | page 3 of 7 cuidevices.com CMC -2742PBJ-A WWW.CUIDEVICES.COM/PRODUCT/AUDIO/MICROPHONES/MEMS-MICROPHONES/CMC-2742PBJ-A ELECTRICAL parameter conditions/description min typ max units directivity omnidirectional sensitivity (S) f = 1 kHz, 1 Pa, 0 dB = 1 V/Pa -45 -42 -39 dB supply voltage (VDD) 2 10 Vdc current consumption (IDSS) Vs = 2.0 Vdc, RL = 2.2 kΩ 400 µA sensitivity reduction f = 1 kHz, 1 Pa, Vs = 2.0 ~ 1.5 Vdc -3 dB frequency (f) 100 20,000 Hz signal to noise ratio (S/N) f = 1 kHz, 1 Pa, A-weighted 58 dBA output impedance (Zout) f = 1 kHz, 1 Pa 2.2 kΩ Notes: 1. All specifications measured at 23±2°C, humidity at 55±20%, unless otherwise noted. FREQUENCY RESPONSE CURVE Additional Resources: Product Page

CUI DEVICES | MODEL: DEVKIT-ECM-001 | DESCRIPTION: MICROPHONE DEVELOPMENT KIT date 04/13/2023 | page 4 of 7 cuidevices.com CMR-2747PB-A WWW.CUIDEVICES.COM/PRODUCT/AUDIO/MICROPHONES/ELECTRET-CONDENSER-MICROPHONES/CMR-2747PB-A ELECTRICAL parameter conditions/description min typ max units directivity noise cancelling sensitivity (S) at 94 dB SPL, 1 kHz -50 -47 -44 dB supply voltage (VDD) 2.0 10.0 V current consumption (IDSS) VDD = 2.0 V 500 µA sensitivity reduction VDD = 2.0 ~ 1.5 V -3 dB frequency (f) 100 20,000 Hz signal to noise ratio (S/N) at 94 dB SPL, 1 kHz (A-weighted) 56 dBA total harmonic distortion (THD) at 94 dB SPL, 1 kHz 10 % acoustic overload point (AOP) at 10% THD, 1 kHz 110 dB SPL output impedance (Zout) at 1 kHz 2,200 Ω Notes: 1. All specifications measured at 23±2°C, humidity at 55±20%, unless otherwise noted. FREQUENCY RESPONSE CURVE Additional Resources: Product Page

CUI DEVICES | MODEL: DEVKIT-ECM-001 | DESCRIPTION: MICROPHONE DEVELOPMENT KIT date 04/13/2023 | page 5 of 7 cuidevices.com CMC-6015-47P WWW.CUIDEVICES.COM/PRODUCT/AUDIO/MICROPHONES/ELECTRET-CONDENSER-MICROPHONES/CMC-6015-47P ELECTRICAL parameter conditions/description min typ max units directivity unidirectional sensitivity (S) at 94 dB SPL, 1 kHz -50 -47 -44 dB supply voltage (VDD) 2.0 10.0 V current consumption (IDSS) VDD = 2.0 V 500 µA sensitivity reduction VDD = 2.0 ~ 1.5 V -3 dB frequency (f) 100 20,000 Hz signal to noise ratio (S/N) at 94 dB SPL, 1 kHz (A-weighted) 56 dBA total harmonic distortion (THD) at 94 dB SPL, 1 kHz 10 % acoustic overload point (AOP) at 10% THD, 1 kHz 110 dB SPL output impedance (Zout) at 1 kHz 2,200 Ω Notes: 1. All specifications measured at 23±2°C, humidity at 55±20%, unless otherwise noted. FREQUENCY RESPONSE CURVE Additional Resources: Product Page

CUI DEVICES | MODEL: DEVKIT-ECM-001 | DESCRIPTION: MICROPHONE DEVELOPMENT KIT date 04/13/2023 | page 6 of 7 cuidevices.com CMEJ-0413-42-SMT-TR WWW.CUIDEVICES.COM/PRODUCT/AUDIO/MICROPHONES/ELECTRET-CONDENSER-MICROPHONES/CMEJ-0413-42-SMT-TR ELECTRICAL parameter conditions/description min typ max units directivity omnidirectional sensitivity (S) at 1 kHz (0 dB = 1 V/Pa) -45 -42 -39 dB supply voltage (VDD) 1.0 2.0 10 V current consumption (IDSS) VDD = 2.0 V, RL = 2.2 kΩ 0.5 mA sensitivity reduction VDD = 2.0 ~ 1.5 V 3 dB frequency (f) 100 10,000 Hz signal to noise ratio (S/N) at 1 kHz, Pin = 1 Pa (A-weighted) 60 dBA total harmonic distortion (THD) at 94 dB SPL, 1 kHz at 115 dB SPL, 1 kHz acoustic overload point (AOP) at 1 kHz 115 dB SPL output impedance (Zout) at 1 kHz 2.2 kΩ Notes: 1. All specifications measured at 23±2°C, humidity at 55±20%, unless otherwise noted. FREQUENCY RESPONSE CURVE Additional Resources: Product Page

CUI DEVICES | MODEL: DEVKIT-ECM-001 | DESCRIPTION: MICROPHONE DEVELOPMENT KIT date 04/13/2023 | page 7 of 7 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 rev. description date 1.0 initial release 05/14/2019 1.01 brand update 04/02/2020 1.02 logo, datasheet style update 08/05/2022 1.03 changed microphones and modified board design 04/13/2023 The revision history provided is for informational purposes only and is believed to be accurate.

REVISION HISTORY

Additional Resources: Product Page