As well their matching frequency responses, the WM7121 and WM7132 microphones also feature matching phase responses and matching sensitivity, making them ideal for stereo recording and much easier for designers to integrate into their systems. Both devices are also available with market-leading sensitivity tolerance of ±1dB.
Eadaoin Doherty, Wolfson’s Product Line Manager for MEMS Microphones, said: “The WM7121 and WM7132 are among the first microphones in the industry to offer matching frequency responses. This feature, as well as their matching phase responses and sensitivity, ensures that these microphones are easy to integrate and result in truly authentic audio recordings and crystal-clear audio playback.”
The WM7121 top port package and WM7132 bottom port package are both available for sampling now.
Wolfson Microelectronics has introduced its first top and bottom port silicon analogue micro-electro-mechanical systems (MEMS) microphone pair with matching frequency responses.
The Scottish chip supplier is responding to what it sees as a growing demand in the consumer market for high definition audio to match the HD video in mobile devices.
The MEMS microphones have a signal-to-noise ratio (SNR) of 65dB with distortion and matching responses across the frequency band from 10Hz to 20kHz.
As well their matching frequency responses, the WM7121 and WM7132 microphones also feature matching phase responses and matching sensitivity, making them ideal for stereo recording and much easier for designers to integrate into their systems. Both devices are also available with market-leading sensitivity tolerance of ±1dB.
“Matching frequency responses, as well as their matching phase responses and sensitivity, ensures that these microphones are easy to integrate and result in truly authentic audio recordings and crystal-clear audio playback,” said Eadaoin Doherty, Wolfson’s product line manager for MEMS microphones.
For more read: Wolfson designs first matched MEMS microphones