CMM-4737DT-26386-TR CUI Devices

Additional Resources: Product Page 3D Model PCB Footprint date 01/16/2020 page 1 of 6 MODEL: CMM-4737DT-26386-TR DESCRIPTION: MEMS MICROPHONE FEATURES digital (PDM) small package reflow solder compatible omnidirectional ELECTRICAL parameter conditions/description min typ max units directivity omnidirectional sensitivity (S) at 94 dB SPL, 1 kHz -29 -26 -23 dB FS supply voltage (VDD) 1.6 2.0 3.6 V current consumption (IDD) 0.86 mA sensitivity reduction VDD = 3.6 ~ 1.6 V -0.5 dB FS frequency (f) 100 10,000 Hz signal to noise ratio (S/N) at 94 dB SPL, 1 kHz (A-weighted) 58 dBA total harmonic distortion (THD) at 94 dB SPL, 1 kHz 0.2 % acoustic overload point (AOP) at 10% THD, 1 kHz 120 dB SPL output impedance (Zout) at 1 kHz 300 power supply rejection (PSR) 100 mVp-p square wave at 217 Hz (A-weighted) -70 dB FS DIGITAL INTERFACE parameter conditions/description min typ max units sleep current (ISLEEP) FCLOCK < 1 kHz 25 50 A fall-asleep time FCLOCK < 1 kHz 10 ms wake-up time FCLOCK 1 MHz 10 ms short circuit current (ISC) grounded data pin 1 10 mA output load (CLOAD) 100 pF data format 1-Bit PDM clock frequency (FCLOCK) 1.0 2.4 3.2 MHz clock duty cycle (FDC) 40 60 % clock rise time (tCR) 10 ns clock fall time (tCF) 10 ns logic input/output low (VIOL) IOUT = 1 mA -0.30 0.35xVDD V logig input/output high (VIOH) IOUT = 1 mA 0.65xVDD VDD+0.3 V delay time for valid data (tDV) 18 60 ns delay time for high z (tDH) 0 16 ns Notes: 1. All specifications measured at 232C, humidity at 5520%, V DD = 2.0 V, FCLOCK = 2.4 MHz, unless otherwise noted. cuidevices.comAdditional Resources: Product Page 3D Model PCB Footprint CUI Devices MODEL: CMM-4737DT-26386-TR DESCRIPTION: MEMS MICROPHONE date 01/16/2020 page 2 of 6 TIMING CHARACTERISTICS 1/F CLOCK t CF t CR VOH CLOCK V OL tDH tDV DATA Mic(High) Mic(High) (SELECT=VDD) Data Data tDV tDH High ZHigh Z DATA Mic(Low) Mic(Low) (SELECT=Gnd) Data Data Microphone Select (L/R) Asserts Data On Latch Data On Mic (High) VDD rising clock edge falling clock edge Mic (Low) GND falling clock edge rising clock edge RECOMMENDED INTERFACE CIRCUIT Vdd Vdd Vdd ) ) Select Select Select (L/R)(L/R) (L/R) Mic Mic Mic (High) (Low) (Low) Vdd Vdd Gnd Data Clock Vdd Gnd Data Clock Vdd Codec Codec Double MIC SingleMIC cuidevices.com X X) X