The TDK InvenSense ICS-40800 Ultra-low noise oriented MEMS microphone features an ultra-high signal-to-noise ratio (SNR) of 70dBA and a sensitivity tolerance of ±1dB, making it ideal for far-field voice control and voice applications. ICS-40800 consists of two sound ports, one at the bottom of the module and the other at the top of the module. This dual-port layout enables the microphone to exhibit variable sensitivity to sound depending on the Angle of arrival. The top port can be sealed to produce omni-directional sensitivity to sound.
Functional block diagram
ICS-40800 includes a MEMS microphone element, an impedance converter, and an output amplifier in a small 4 mm x 3mm x 1.20mm surface-mount package. Typical applications include tablets, teleconference systems, digital cameras, communications headsets, security and surveillance. Other features include analog output, 80Hz to 20kHz extended frequency response, -86 DBV power suppression (PSR), and 128dB sound pressure level (SPL) acoustic overload points.
Features
● Ultra high 70dBA SNR
● Anti-trust signal output
● Extended frequency response: 80Hz to 20kHz
● Small surface mount package with ports
● Analog output
● Includes MEMS microphone element, impedance converter and differential output amplifier.
● Compatible with Wuxi/lead and lead-free welding processes
● Comply with RoHS/WEEE specification
Applications
● Tablet computer
● Teleconferencing system
● Digital cameras and camcorders
● Communication earphone
● Security and monitoring
● Microphone array
● Voice control and activation
Standard
● Sensitivity: -38dBV
● Sensitivity tolerance: ±1dB
● 155µA current consumption
● Acoustic overload point 128dB SPL
● -86dBV PSR
● Size: 4mm x 3mm x 1.20mm
Pin configuration
Codec connection
