CMEJ-9745-37-P CUI Devices

Additional Resources: Product Page 3D Model PCB Footprint date 01/17/2020 page 1 of 5 MODEL: CMEJ-9745-37-P DESCRIPTION: ELECTRET CONDENSER MICROPHONE FEATURES omnidirectional 9.7 mm diameter through hole ELECTRICAL parameter conditions/description min typ max units directivity omnidirectional sensitivity (S) at 1 kHz (0 dB = 1 V/Pa) -40 -37 -34 dB supply voltage (VDD) 1.0 2.0 10 V current consumption VDD = 2.0 V, RL = 2.2 k 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 at 94 dB SPL, 1 kHz 1 % total harmonic distortion (THD) at 115 dB SPL, 1 kHz 3 % acoustic overload point (AOP) at 1 kHz 115 dB SPL output impedance (Zout) at 1 kHz 2.2 k Notes: 1. All specifications measured at 202C, humidity at 60~70%, unless otherwise noted. ENVIRONMENTAL parameter conditions/description min typ max units operating temperature -40 70 C storage temperature -40 85 C operating humidity non-condensing 30 85 % storage humidity non-condensing 30 75 % hand soldering for 1~3 seconds 340 350 360 C RoHS yes cuidevices.comAdditional Resources: Product Page 3D Model PCB Footprint CUI Devices MODEL: CMEJ-9745-37-P DESCRIPTION: MEMS MICROPHONE date 01/17/2020 page 2 of 5 MECHANICAL parameter conditions/description min typ max units dimensions 9.7 x 4.5 mm acoustic port top terminals pins weight 0.73 g MECHANICAL DRAWING units: mm tolerance: 0.2 mm TERMINAL CONNECTIONS TERM. FUNCTION 1 Output (+) 2 GND (-) Recommended PCB Layout Top View cuidevices.com