PCM1780DBQG4

Introduction

PCM1780DBQG4 is an Analog-to-Digital Converter (ADC) with a special purpose. It integrates a powerful 8-Bit PMR (Pulse Modulated Radio) receiver. It implements the latest generation of high performance digital Pulse Code Modulation (PCM) audio technology. The PCM1780DBQG4 is ideally suited for automotive entertainment, home theatre and multi-room audio systems applications. This application note provides an overview of PCM1780DBQG4 application fields and its working principle.

Application Field

PCM1780DBQG4 is suitable for mobile applications such as in-car audio systems. It is also applicable in fixed installations such as home theatre and multi-room audio systems. The PMR receiver offers an ideal platform for applications requiring signal reception in public areas, including airport and train terminals, museums and art galleries, restaurants, bars and nightclubs, shopping malls, and amusement parks. It provides a comprehensive solution for audio broadcasting and streaming applications.

PCM1780DBQG4 provides 16-bit resolution and 24 bit resolution for various applications. It also offers advanced signal processing with noise-free dynamic range and wide dynamic range of signal detection.

The PCM1780DBQG4 offers high integration and reduced BOM cost. It has built-in low power and efficient pre-emphasis, AGC, synchronous clocking and modular Burst-Single conversion. It is easy to configure via I2C/SPI interface and offers digital noise process and multiplexed outputs for full-bandwidth PCM audio formats including MP3, WMA, and AAC.

Working Principle

PCM1780DBQG4 offers advanced signal processing capabilities with noise-free dynamic range. It performs multiple stages of signal processing including pre-emphasis, synchronization, gain control, and demodulation. The PCM1780DBQG4 has built-in AGC (automatic gain control) to adjust its gain according to incoming signal strength and to control the out power level.

PCM1780DBQG4 implements a synchronized clocking architecture based on a single clock source to ensure that all data samples are collected and processed in correct order and at the correct speed. The synchronous clocking architecture also enables the PCM1780DBQG4 to obtain the maximum performance in terms of SNR (signal to noise ratio).

The PCM1780DBQG4 is designed to track complex signals over a large range of frequencies and allows the device to achieve a wide dynamic range of signal detection. The device also utilizes a multiplexed interface to output the PCM audio data and modulation data.

PCM1780DBQG4 also supports multiple audio output formats including MP3, WMA, and AAC. The device allows for simultaneous output of PCM and modulation data and can also function as an integrated PCM decoder.

Conclusion

PCM1780DBQG4 is an analog-to-digital converter with a special purpose, suitable for mobile and fixed applications such as in-car audio systems, home theatre and multi-room audio systems. The device integrates a powerful 8-Bit PMR (Pulse Modulated Radio) receiver and implements the latest generation of digital Pulse Code Modulation (PCM) audio technology. The PCM1780DBQG4 offers advanced signal processing capabilities with noise-free dynamic range, synchronous clocking, modular Burst-Single conversion, digital noise process and multiplexed outputs for full-bandwidth PCM audio formats including MP3, WMA, and AAC.