ADMP404 Datasheet | Analog Devices

FEATURES Tiny 3.35 mm × 2.50 mm × 0.88 mm surface-mount package High SNR of 62 d BA High sensitivity of - 38 d BV Flat frequency response from 100 Hz to 15 k Hz Low current consumption: <250 µA Single-ended analog output High PSRR of 70 d B patible with Sn/Pb and Pb-free solder processes Ro HS/WEEE pliant Omnidirectional Microphone with Bottom Port and Analog Output ADMP404 .. GENERAL DESCRIPTION The ADMP404 is a high quality, low cost, low power, analog output bottom-ported omnidirectional MEMS microphone. The ADMP404 consists of a MEMS microphone element, an impedance converter, and an output amplifier. The ADMP404 sensitivity specification makes it an excellent choice for both near field and far field applications. The ADMP404 has a high SNR and flat, wideband frequency response, resulting in natural sound with high intelligibility. Low current consumption enables long battery life for portable applications. A built-in particle filter provides high reliability. The ADMP404 plies with the TIA-920 Telemunications Telephone Terminal Equipment Transmission Requirements for Wideband Digital Wireline Telephones standard. The ADMP404 is available in an ultraminiature 3.35 mm × 2.50 mm × 0.88 mm surface-mount package. It is reflow solder patible with no sensitivity degradation. The ADMP404 is halide free. APPLICATIONS Smartphones and feature phones Digital video cameras Bluetooth headsets Video phones Teleconferencing systems FUNCTIONAL BLOCK DIAGRAM ASIC MEMS VDD OUTPUT MEMBRANE BACKPLATE IMPEDANCE CONVERTER OUTPUT AMPLIFIER Figure 1. Rev. Pr H Information furnished by Analog Devices is believed to be accurate and reliable. However, no responsibility is assumed by Analog Devices for its use, nor for any infringements of patents or other rights of third parties that may result from its use. Specifications subject to change without notice. No license is granted by implication or otherwise under any patent or patent rights of Analog Devices. Trademarks and...