MEMS Mic Slashes Power Consumption

MEMS Mic Slashes Power Consumption
Knowles Corp.

Knowles Corp. engineers unveil the SPH0641LM4H-1 digital MEMS microphone that they claim exhibits the lowest power consumption on the market. Targeting consumer electronics, the multi-mode MEMS microphone offers a high signal-to-noise ratio (SNR) in the low power mode, which enables voice controlled applications and maximizes battery life. It employs the company’s low power, “Always On, Always Listening” technology to provide a high SNR component with a power draw lower than the conventional analog microphone and analog-to-digital converter combination. Specs include:

• SNR: Nominal 64.3 dB(A)
• Flat Frequency Response: Up to 20 kHz
• Power consumption: 235µA in low power mode
• Sensitivity matching: ±1 dB
• Digital output: Serial PDM bit stream
• Measurements: 3.50 x 2.65 x 0.98 mm

For more information, visit  

Knowles Corp.
Itasca, IL
[email protected]

Contact Info

Company: Knowles Corp.
Country: United States (USA)

Suggested Articles

Xilinx stock gained 7% on news of the $35 billion deal while AMD dropped nearly 5%.

The transaction has already been approved by both boards and will close in late 2021.

The overall data center system matters more than the CPU to CIOs, but investors responded poorly to Intel’s lower data centric chip sales