CMX865AD4 – CML

The CMX865AD4 is a baseband interface IC manufactured by CML Microcircuits, designed for digital radio applications. It provides a comprehensive analog front-end for demodulating and processing Intermediate Frequency (IF) signals from a digital radio receiver. The device incorporates programmable gain amplifiers (PGAs), analog-to-digital converters (ADCs), and digital-to-analog converters (DACs) to facilitate signal conditioning and data conversion. Specifically, the CMX865AD4 features a dual ADC architecture, enabling I/Q demodulation for complex signal processing. The integrated DACs allow for the reconstruction of analog signals for audio output or further processing stages. The device operates with a low voltage supply, typically 3.3V or 5V, and includes power-down modes to minimize power consumption. Configuration and control are achieved through a serial interface, allowing for flexible adjustment of gain, filtering, and other parameters to optimize performance for various digital radio standards.