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INMP521ACEZ-R0 Scheda tecnica(PDF) 1 Page - TDK Electronics |
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INMP521ACEZ-R0 Scheda tecnica(HTML) 1 Page - TDK Electronics |
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1 / 20 page  INMP521 Ultra-Low Noise Microphone with Bottom Port and PDM Digital Output GENERAL DESCRIPTION The INMP521* is a high performance, ultra-low noise, low power, digital output, bottom-ported omnidirectional MEMS microphone. The INMP521 consists of a MEMS microphone element and an impedance converter amplifier followed by a fourth-order sigma-delta (Σ-Δ) modulator. The digital interface allows for the pulse density modulated (PDM) output of two microphones to be time-multiplexed on a single data line using a single clock. The INMP521 is function and pin compatible with the INMP421 microphone, providing an easy upgrade path. The INMP521 has a very high signal-to-noise ratio (SNR) and common sensitivity of −26 dBFS, making it an excellent choice for far field applications. The INMP521 has an extended wide- band frequency response resulting in natural sound with high intelligibility. Low current consumption and a sleep mode with less than 1 µA current consumption enables long battery life for portable applications. The INMP521 complies with the TIA-920 Tele-communications Telephone Terminal Equipment Transmission Requirements for Wideband Digital Wireline Telephones standard. The INMP521 is available in a thin 4 mm × 3 mm × 1 mm surface-mount package. It is reflow solder compatible with no sensitivity degradation. The INMP521 is halide free. *Protected by U.S. Patents 7,449,356; 7,825,484; 7,885,423; and 7,961,897. Other patents are pending. APPLICATIONS • Smartphones and Feature Phones • Microphone Arrays • Tablet Computers • Teleconferencing Systems • Digital Still and Video Cameras • Bluetooth Headsets • Notebook PCs • Security and Surveillance FEATURES • Small, Thin 4 × 3 × 1 mm Surface-Mount Package • Omnidirectional Response • Very High SNR of 65 dBA • Sensitivity of −26 dBFS • Wide Frequency Response from 100 Hz to 16 kHz • Low Current Consumption of 900 µA • Sleep Mode for Extended Battery Life, <1 µA • 120 dB Maximum SPL • High PSR of −80 dBFS • Fourth-Order Σ-Δ Modulator • Digital PDM Output • Sn/Pb and Pb-Free Solder Processes • RoHS/WEEE Compliant FUNCTIONAL BLOCK DIAGRAM ORDERING INFORMATION PART TEMP RANGE INMP521ACEZ-R0* −40°C to +85°C INMP521ACEZ-R7† −40°C to +85°C EV_INMP521 — EV_INMP521-FX — * – 13” Tape and Reel † – 7” Tape and reel to be discontinued. Contact sales@invensense.com for availability. BOTTOM TOP INMP521 ADC POWER MANAGEMENT CLK DATA PDM MODULATOR CHANNEL SELECT InvenSense reserves the right to change the detail specifications as may be required to permit improvements in the design of its products. InvenSense Inc. 1745 Technology Drive, San Jose, CA 95110 U.S.A +1(408) 988–7339 www.invensense.com Document Number: DS-ADMP521-00 Revision: 1.0. Rev Date: 02/06/2014 |
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