ICS-41351 Overview
The ICS-41351 is a multi-mode, low noise digital MEMS microphone in a small package. The ICS-41351 consists of a MEMS microphone element and an impedance converter amplifier followed by a fourth-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.
ICS-41351 Key Features
- 26 dB FS ±1 dB 65 dBA 230 µA
- 26 dB FS ±1 dB 65 dBA 600 µA
- 35.5 dB FS ±1 dB 63 dBA
- 3.5 × 2.65 × 0.98 mm surface-mount package
- Extended frequency response from 50 Hz to >20 kHz
- Low power: 230 µA in Low-Power Mode
- Sleep Mode: 12 µA
- High power supply rejection (PSR): -93 dB FS
- Fourth-order Σ-Δ modulator
- Digital pulse density modulation (PDM) output