STMicroelectronics has introduced two digital MEMS microphones. The MP34DB01 is specifically designed for mobile phones while the MP45DT02 suits the size and sound-inlet position requirements of laptops and tablets.
Housed in a 3 x 4 x 1-mm package, the MP34DB01 features a high-fidelity audio bandwidth with a flat frequency response from 20 Hz to 20 kHz. SNR and power supply noise rejection are 62 and 70 dB, respectively.
The MP45DT02 is a top-port 3.76 x 4.72 x 1.25-mm device. It features an SNR of 58 dB and a frequency response claimed to be superior to alternatives for that market.
The MP34DB01 is available for volume shipping while the MP45DT02 will start mass production in Q2. Pricing for both devices is $1.40/ea in quantities of 1,000.
STMicroelectronics, +41 22 929 29 29, www.st.com.
MP34DB01 information page
MP34DB01 datasheet (PDF)
MP45DT02 information page
MP45DT02 datasheet (PDF)