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INMP621ACEZ-R0 Fiches technique(PDF) 4 Page - TDK Electronics |
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INMP621ACEZ-R0 Fiches technique(HTML) 4 Page - TDK Electronics |
4 / 20 page INMP621 SPECIFICATIONS TABLE 1. ELECTRICAL CHARACTERISTICS (TA = −40 to 85°C, VDD = 1.8 to 3.3 V, CLK = 3.072 MHz, CLOAD = 30 pF, unless otherwise noted. All minimum and maximum specifications are guaranteed across temperature, voltage, and clock frequency specified in Table 1 and Table 2, unless otherwise noted. Typical specifications are not guaranteed.) PARAMETER CONDITIONS MIN TYP MAX UNITS NOTES PERFORMANCE Directionality Omni Output Polarity Input acoustic pressure vs. output data Inverted Sensitivity 1kHz, 94 dB SPL −48 −46 −44 dBFS 1, 2 Signal-to-Noise Ratio (SNR) 20 Hz to 20 kHz, A- weighted 65 dBA Equivalent Input Noise (EIN) 20 Hz to 20 kHz, A- weighted 29 dBA SPL Acoustic Dynamic Range Digital Dynamic Range Derived from EIN and acoustic overload point 104 dB 2 Derived from EIN and full- scale acoustic level 111 dB Frequency Response Low frequency −3 dB point 45 Hz 3 High frequency −3 dB point >20 kHz Total Harmonic Distortion (THD) 105 dB SPL 0.35 1 % Power Supply Rejection (PSR) 217 Hz, 100 mV p-p square wave superimposed on VDD = 1.8 V, A-weighted −100 dBFS Power Supply Rejection—Swept Sine 1 kHz sine wave −113 dBFS Acoustic Overload Point 10% THD 133 dB SPL Full-Scale Acoustic Level 0 dBFS output 140 dB SPL POWER SUPPLY Supply Voltage (VDD) 1.62 3.63 V Supply Current (IS) VDD = 1.8 V Normal Mode 1.2 1.5 mA Sleep Mode 5.5 µA 4 VDD = 3.3 V Normal Mode 1.3 1.6 mA Sleep Mode 8 µA 4 DIGITAL INPUT/OUTPUT CHARACTERISTICS Input Voltage High (VIH) 0.65 x VDD V Input Voltage Low (VIL) 0.35 x VDD V Output Voltage High (VOH) ILOAD = 0.5 mA 0.7 x VDD VDD V Output Voltage Low (VOL) ILOAD = 0.5 mA 0 0.3 x VDD V Output DC Offset Percent of full scale 3 % Latency <30 µs Noise Floor 20 Hz to 20 kHz, A- weighted −111 dBFS Note 1: Sensitivity is relative to the RMS level of a sine wave with positive amplitude equal to 100% logical 1s density and negative amplitude equal to 0% logical 1s density. Page 4 of 20 Document Number: DS-INMP621-00 Revision: 1.0 Rev Date: 02/06/2014 |
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