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ADMP521 Folha de dados(PDF) 3 Page - Analog Devices |
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ADMP521 Folha de dados(HTML) 3 Page - Analog Devices |
3 / 16 page Data Sheet ADMP521 Rev. A | Page 3 of 16 SPECIFICATIONS TA = 25°C, VDD = 1.8 V, CLK = 2.4 MHz, unless otherwise noted. All minimum and maximum specifications are guaranteed. Typical specifications are not guaranteed. Table 1. Parameter Test Conditions/Comments Min Typ Max Unit PERFORMANCE Directionality Omni Sensitivity1 1 kHz, 94 dB sound pressure level (SPL) −29 −26 −23 dBFS 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 Dynamic Range Derived from EIN and maximum acoustic input 91 dB Frequency Response2 Low frequency −3 dB point 100 Hz High frequency −3 dB point 16 kHz Deviation limits from flat response within pass band −3/+8 dB Total Harmonic Distortion (THD) 105 dB SPL 2.5 % Power Supply Rejection (PSR) 217 Hz, 100 mV p-p sine wave superimposed on VDD = 1.8 V −80 dBFS Maximum Acoustic Input Peak 120 dB SPL POWER SUPPLY Supply Voltage (VDD) 1.8 3.3 V Supply Current (IS) Normal Mode VDD = 1.8 V 0.9 1.0 mA VDD = 3.3 V 1.0 1.2 mA Sleep Mode3 VDD = 1.8 V 0.5 µA VDD = 3.3 V 0.8 µA DIGITAL INPUT/OUTPUT CHARACTERISTICS Input Voltage High (VIH) 0.65 × VDD V Input Voltage Low (VIL) 0.35 × VDD V Output Voltage High (VOH) ILOAD = 0.5 mA 0.7 × VDD VDD V Output Voltage Low (VOL) ILOAD = 0.5 mA 0 0.3 × VDD V Output DC Offset Percent of full scale 7 % Latency <30 µs Noise Floor 20 Hz to 20 kHz, A-weighted −91 dBFS 1 Relative to the rms level of a sine wave with positive amplitude equal to 100% 1s density and negative amplitude equal to 0% 1s density. 2 See Figure 7 and Figure 8. 3 The microphone enters sleep mode when clock frequency is less than 1 kHz. |
Nº de peça semelhante - ADMP521 |
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Descrição semelhante - ADMP521 |
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