The MC145483DWR2 is an integrated circuit (IC) component that is designed for audio signal processing applications. It is specifically developed for use in telecommunication systems and offers various key features that make it suitable for such applications.
One of the primary features of the MC145483DWR2 is its functionality as a PCM codec (pulse code modulation codec). It integrates both analog and digital circuitry to convert analog audio signals into digital signals for transmission or processing and vice versa. This allows for accurate reproduction of high-quality audio signals and ensures minimal signal degradation during transmission.
The IC supports a sampling rate of 8 kHz, which is commonly used for voice communications. It also incorporates a DTMF (dual-tone multi-frequency) generator and detector, enabling it to transmit and receive touch-tone signals typically used for telephone systems. This feature makes it suitable for applications involving remote control or automated voice response systems.
Moreover, the MC145483DWR2 includes a 256-word programmable read-only memory (PROM) that allows customization of various parameters such as gain and frequency response. This flexibility enables system designers to tailor the IC's performance to specific requirements and applications.
Additionally, the IC is equipped with a built-in analog-to-digital converter (ADC) and a digital-to-analog converter (DAC), providing accurate conversion between analog and digital domains. This ensures high-fidelity audio reproduction and precise signal processing capabilities
