WMM7040DTHN0-8/TR

WMM7040DTHN0 WMM7040DTHN0 Top port digital silicon Microphone Http//:www.willsemi.com Descriptions WMM7040DTHN0 is a Silicon Microphone with digital output and top inlet for sound input. It consists of a MEMS sensor and an encoder IC. It converts sensor analog output signal into 1bit digital PDM data. The digital output format eliminates AC coupling capacitor, reduces RF noise coupling and eases PCB layout requirement. WMM7040DTHN0 is a cost-effective alternative to traditional electret condenser microphone (ECM). Provided on tap-and-reel, it is ideally suited for high volume applications and it can be processed directly to customer’s PCB using standard automatic pick-and-place equipment and surface mounted via standard solder reflow equipment. WMM7040DTHN0 can be used to implement the array microphones. Speech quality can be significantly improved by combining two microphones. The WMM7040DTHN0 is manufactured in a compact 4.00mm*3.00mm*1.00mm, 8-pin package. Product appearance Pin configuration (Bottom view) Features PDM Output High SNR Multiple performance modes Ultra-Stable Performance Standard SMD Reflow RoHS/Halogen free compliant Omnidirectional Marking (Top view) Y = Year code WW = Week code XXX Applications ● Smart phones ● Smart speakers ● Portable communication device ● Notebook and desktop ● Digital still cameras ● Portable music recorders X X= Data code Order information Device WMM7040DTHN0-8/TR Will Semiconductor Ltd. Package(mm) 4.00*3.00*1.00 Shipping 5000/Reel&Tape WMM7040DTHN0 Absolute maximum ratings Parameter Conditions Min Typ Max Unit Supply voltage VDD to GND -0.3 - 6.5 V L/R,CLOCK,DATA Voltage to GND -0.4 - VDD+0.4V V -40 - +85 ℃ Solder on PCB -40 - +125 ℃ In Tape and Reel -10 - +50 ℃ Operating Temperature Storage Temperature Stresses exceeding these “Absolute Maximum Ratings” could cause permanent damage to the microphone. These are stress rating only. Functional operation at these or any other conditions beyond those indicated under “Absolute and Electrical Characteristics” is not implied. Exposure beyond those indicated under “Acoustic and Electrical Characteristics” for extended periods may affect microphone reliability. Will Semiconductor Ltd. WMM7040DTHN0 ACOUSTIC & ELECTRICAL SPECIFICATIONS TEST CONDITIONS: 23 ±2°C, 55±20% R.H., VDD=1.8V, Fclock=2.048MHz, Duty Cycle=50%, SELECT pin grounded, no load, unless otherwise indicated. Parameter Supply Voltage Symbol VDD IDD Supply Current Ilow_power Isleep Sleep mode Low power Clock mode Frequency Standard Rang Performance Mode Sensitivity Signal to Noise Ratio Sense SNR Conditions Min 1.6 Typ - Max 3.6 Units V - 640 - uA - 300 - uA - 42 - uA 0 - 250 KHz 350 - 800 KHz 1 - 4.8 MHz 94dB SPL @1KHz Normal mode 94dB SPL @1KHz, A-weighted Low power mode 94dB SPL @1KHz, A-weighted -27 -26 -25 dBFS - 65 - dB(A) - 64 - dB(A) Normal operation, Fclk(1MHz~4.8MHz) Low power mode, Fclk(350kHz~800KHz) Sleep mode, Fclk(