CML CMX655D
The CMX655D addresses these needs providing an update to the traditional audio codec that is both very low power and small in size. The CMX655D has a digital microphone interface that connects single or dual microphones to the device and the same parallel processing streams. The Class-D amplifier features programmable filtering and digital gain control.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
● Supports 8/16/32/48 ksps sample rates
● Flexible serial audio interface
● SPI™/TWI control interface1
● Small 24-lead VQFN Package
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 and internal osc RCLK OOppttiioonnaall sseeccoonndd mmiiccrroopphhoonnee Line out Control registers and logic Digital sidetone Class D driver Filtering Digital gain control I2S/PCM audio interface LRCLK/FS BCLK DO DI SPI/TWI control interface Supplies CSN/A0 MISOSDA SCLK/SCL MOSI/A1 RSTN IRQN VSS VDD Figure 1 CMX655D Simplified Block Diagram 1 Brief De...