Description
CMX655D Ultra Low Power Voice Codec D/655/6 May 2022 .
Traditionally audio codecs have interfaced to electret microphones and speakers providing A-to-D and D-to-A functions using precision oversampling da.
Features
* Digital microphone support
* High efficiency Class-D amplifier
* Ultra Low power consumption
* 16 bit audio data
* Supports conventional telephony and HD voice (300Hz - 3.4kHz
and 50Hz -7kHz bandwidths)
* Supports audio bandwidths up to 21kHz
Applications
* Security alarm panels
* Glass break detection
* Intercom and access systems
* Mobile radio and accessories
* Wired telephony
* Voice controlled equipment
Provisional
Digital Interface
PDM to decimated 16 bit PCM
Filtering
Signal processing
PLL