T5838
DESCRIPTION
The T5838 is a multi-mode, low noise digital MEMS microphone in a small package. The T5838 consists of a MEMS microphone element and an impedance converter amplifier followed by a fifth order Σ-Δ modulator. The digital interface allows the pulse density modulated (PDM) output of two microphones to be time-multiplexed on a single data line using a single clock.
T5838 introduces Acoustic Activity Detect (AAD) Modes which are parallel processing features operating within Sleep and Low Power Modes. The on-chip processing of AAD Modes determines if acoustic activity occurred and provides a Wake pin interrupt. This enables ultra-low power systems design and applications.
The T5838 has multiple modes of operation: High Quality, Low-Power (Always On), Ultrasonic, and Sleep along with new Always On modes: Acoustic Activity Detect (AAD) Analog and Digital. The T5838 has high SNR in all operational modes. It has 133 d B SPL AOP in High Quality Mode and 119 d B SPL AOP in Low-Power...
