CS43L22-CNZ

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Data Acquisition - ADCs/DACs - Special Purpose

The CS43L22-CNZ is a special-purpose analog-to-digital converter (ADC) developed by Cirrus Logic Inc. and released in 2017. It is an integrated circuit (IC) designed to convert an analog signal into a digital signal.

The CS43L22-CNZ has an operational voltage range of 1.65 to 5.5 volts and a power consumption rating of 0.3 mW, making it suitable for a range of battery-operated applications. It is a high-performance, low-power solution for audio applications, with a sampling rate of 48 kHz and a total harmonic distortion of 0.0035%.

Applications

The CS43L22-CNZ is designed for audio digital-to-analog conversion (DAC) applications and is used in a variety of consumer, telephony and automotive audio products. Examples of its use include mobile devices such as smartphones and tablets, with applications including audio playback, sound recording, audio signal processing, broadcast radio, and sound synthesis.

In addition to its audio-related applications, the CS43L22-CNZ can be used in medical systems such as OTC blood pressure monitors and handheld X-ray imaging systems. It can also be used in automotive applications such as infotainment systems and in consumer electromechanical products such as battery-powered electric drills.

Working Principle

The working principle of the CS43L22-CNZ is based on the sampling theorem, which states that a signal can be recovered from its samples if the sampling rate is at least twice the highest frequency component of the signal. Thus, to convert an analog signal into a digital signal, the CS43L22-CNZ samples the analog signal at regular intervals, and each sample is used to represent the amplitude of the signal at that point. The resulting digital signal is then amplified and output through the digital-to-analog converter.

The CS43L22-CNZ is capable of converting analog signals with a frequency range up to 20 kHz. It uses a differential input stage with a single-ended output and high-pass filtering to reduce the noise of the incoming signal. It also has an adjustable gain control, so the user can adjust the amount of amplification needed for each signal.

The CS43L22-CNZ is an integrated circuit that can be used to convert analog signals into digital signals with high accuracy and low power consumption. It is suitable for a range of consumer, automotive, and medical electronic products, and is an efficient and cost-effective solution for audio and data acquisition applications.

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