AP2718AB

AP2718AB Analog MEMS Microphone AP2718AB is an omnidirectional, stable, low power, bottom port, analog MEMS microphone. The AP2718AB consists of a MEMS acoustic transducer and a low noise amplifier, which is suitable for cellphones, Bluetooth earphones, headsets, and other portable electronic devices. Features:      Flat frequency response Low current consumption Omnidirectional Good uniformity Standard SMD Reflow Typical applications:      Cellphones Bluetooth earphones Headsets Laptops Digital cameras 1. ABSOLUTE MAXIMUM RATINGS Parameter VDD to GND ESD Tolerance (HBM) ESD Tolerance (CDM) Storage Temperature Maximum Rating Units -0.3 to +5.5 ±2.0 ±200 -40 to +105 V kV V °C Stresses exceeding these “Absolute Maximum Ratings” may cause permanent damage to the device. These are stress ratings only. Functional operation at these or any other conditions beyond those indicated under “Acoustic & Electrical Specifications” is not implied. Exposure beyond those indicated under “Acoustic & Electrical Specifications” for extended periods may affect device reliability. All Power Semiconductor Co.,Ltd V1.1 1 AP2718AB Analog MEMS Microphone 2. ACOUSTIC & ELECTRICAL SPECIFICATIONS Test condition: 25±2°C, 45±20% R.H., unless otherwise indicated. Parameter Symbol Directivity Sensitivity Signal to Noise Ratio Total Harmonic Distortion Acoustic Overload Point Supply Voltage Supply Current S Min Typ Max Units Omnidirectional -39 -38 -37 dBV/Pa Conditionsi 94 dB SPL @ 1 kHz 94 dB SPL @ 1 kHz, A-weighted SNR 63 dB(A) THD 0.06 % 94 dB SPL @ 1 kHz AOP 129 dB SPL 10% THD @ 1 kHz VDD IDD 1.6 3.6 110 95 V μA Power Supply Rejection Ratio PSRR 66 dB Power Supply Rejection PSR -92 dB Output DC Impedance - 220 300 200 mVpp sinewave @ 1 kHz, VDD = 1.8 V 100 mVpp square wave @ 217 Hz, Vdd = 1.8V, A-weighted Ω 3. FREQUENCY RESPONSE CURVE All Power Semiconductor Co.,Ltd V1.1 2 AP2718AB Analog MEMS Microphone 4. APPLICATION CIRCUIT V supply M EM S m icrophone Codec C1 VDD - OUTPUT + C2 GND V out RL Analog ground Power supply decoupling: A 0.1uF ceramic type decoupling capacitor C1is strongly recommended for every microphone and it should be placed as close to the VDD pad to reduce the noise on power supply; The trace connected to each pad of capacitor should be as short as possible, and should stay on one layer of PCB without via.For the best performance, recommend to place the capacitor equidistance from power and ground pins of microphone, or slightly closer to the power pin if space not allowed. System ground should connect to far side of the capacitor All Power Semiconductor Co.,Ltd V1.1 3 AP2718AB Analog MEMS Microphone 5. MECHANICAL SPECIFICATIONS Item Dimension Tolerance Length (L) Width (W) Height (H) Acoustic Port (AP) 2.75 1.85 0.90 Ø0.25 ±0.10 ±0.10 ±0.10 ±0.05 Pin # Description Pin Name 1 2 3 Power Supply Output Signal Ground VDD OUT GND Dimensions are in millimeters unless otherwise specified. Tolerance is ±0.05mm unless otherwise specified All Power Semiconductor Co.,Ltd V1.1 4 AP2718AB Analog MEMS Microphone 6. EXAMPLE OF LAND PATTERN 7. EXAMPLE SOLDER STENCIL PATTERN Note: Dimensions are in millimeters unless otherwise specified. All Power Semiconductor Co.,Ltd V1.1 5 AP2718AB Analog MEMS Microphone 8. PACKING & MARKING DETAIL Note: 1) Dimensions are in mm; 2) Do not push the vacuum suction nozzle alignment the port hole; 3) Tape & Reel Per EIA-481 standard; 4) Label applied to external package and direct to reel; 5) Static voltage