AKM Develops New 24-bit Audio ADC with Automotive Manufacturers in Mind


Tokyo, JapanAsahi Kasei Microdevices Corporation (AKM) has finished development on the AK5730, a new 24-bit 4-channel ADC to facilitate microphone array implementations.  This new development will help automotive manufacturers implement increasingly popular features such as hands-free capabilities, voice recognition, and active noise control functions.


AKM expects this new audio device to provide customers with an easier integration of quality features into their system.  In addition to providing a 4-channel ADC, the AK5730 also provides a SAR ADC with a built in 9:1 multiplexer.


AKM has been able to achieve a wide temperature range of -40 to 105 degrees Celsius, along with high audio performance of 100dB SNR and 92dB THD.  These qualities along with I2S and TDM audio interfaces for easy DSP integration packaged into a 48 pin LQFP will provide customers with a part that is easy to integrate, but at the same time integral to their overall design.


The AK5730 integrates a +15dB pre-amp and bias supply circuit for electret capacitor microphones, coupled with a programmable output voltage control for microphone input support. These features provide a great flexibility for microphone and line inputs.


Evaluation boards and samples are available now.

To obtain more information about the AK5730, please visit here.