ADMP405: Omnidirectional MEMS microphone with bottom port and analog output

The ADMP405 is a high quality, low cost, low power, analog output, bottom-firing omnidirectional MEMS microphone. It consists of a MEMS microphone element, an impedance converter, and an output amplifier. It has excellent sensitivity characteristics, making it an excellent choice for near-field and far-field applications. The ADMP405 has a high signal-to-noise ratio (SNR) and a flat wideband frequency response, which can produce highly intelligible natural sound. A specially designed low frequency cutoff function reduces wind noise. The low power consumption feature extends battery life in portable applications. A built-in particulate filter improves the reliability of the device. The ADMP405 meets the TIA-920 standard: Transmission requirements for broadband digital wireline telephones for telecommunications telephone terminal equipment.

The ADMP405 is available in an ultra-small 3.35 mm × 2.50 mm × 0.88 mm surface-mount package that can be reflow soldered without loss of sensitivity. The ADMP405 is halogen-free.

application

Smartphones and feature phones

Digital video camera

Bluetooth Headset

Videophone

Telephone conference system

characteristic

Small 3.35 mm × 2.50 mm × 0.88 mm surface-mount package

High signal-to-noise ratio (SNR): 62 dBA

High sensitivity: −38 dBV

Flat frequency response: 200 Hz to 15 kHz

Low power consumption: <250 μA

Single-ended analog output

High power supply rejection ratio (PSRR): 70 dB

Compatible with Sn/Pb and Pb-free soldering processes

RoHS/WEEE compliant