CS42L55-CNZ

CS42L55-CNZ Application Field and Working Principle

Introduction

The CS42L55-CNZ is an audio DAC (digital-to-analog converter) and ADC (analog-to-digital converter) which is designed and manufactured by Cirrus Logic. It is a low-cost, low-power, and 2-channel audio CODEC or conversion device primarily aimed at everyday consumer audio applications. The CS42L55-CNZ is compatible with both high and low bit rates, and supports a wide range of sample rates, from 8 kHz to 192 kHz.

Application Field

The CS42L55-CNZ can be used in an array of applications, such as sound processing for smartphones, tablets, and other portable consumer devices; digital audio amplifiers; automotive audio; digital portable media devices such as MP3 players, audio DVD players and portable digital radios; digital audio systems in the home appliance and pro-audio industry; and professional audio systems.

Working Principle

The CS42L55-CNZ performs digital-to-analog conversion using a delta-sigma modulator (ADC) and an anti-aliasing filter. This means that the device can convert digital signals into analog signals without introducing any noise or distortion. In addition, the CS42L55-CNZ also has an analog-to-digital converter which can take analog signals and convert them into digital signals, without any loss of sound quality.

The CS42L55-CNZ also features an auto-mute function, which can be used to instantly mute the output, which is useful in applications such as telephone systems. The CS42L55-CNZ also includes both a Dynamic Range Control (DRC) and a Sample Rate Converter (SRC) which can be used to enhance the sound quality. Finally, the CS42L55-CNZ has an Automatic Gain Control (AGC) which adjusts the gain of the device automatically. All these features provide great flexibility and control over the sound.

Conclusion

The CS42L55-CNZ is a low-cost, low-power and 2-channel audio CODEC designed by Cirrus Logic for consumer audio applications. It offers a wide range of features, including a delta-sigma ADC, an anti-aliasing filter, an auto-mute function, a dynamic range control, a sample rate converter and an automatic gain control, all of which allow for great flexibility and control. Its application field covers consumer audio, automotive audio, home appliance and pro-audio industry, and professional audio systems.