CS43L21-CNZ

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Data acquisition and the use of ADCs and DACs are part of all electronics design projects. Specialty devices such as the CS43L21-CNZ offer unique features specifically targeting niche needs. This device is commonly used in audio design, specifically in consumer-grade consumer audio interfaces, such as portable MP3 and CD players. The CS43L21-CNZ provides a cost-effective solution across many different audio codec platforms, while retaining quality and features.

The CS43L21-CNZ is a low-power, high-performance stereo audio ADC/DAC with integrated audio inputs that are designed for consumer audio interfaces. It provides 24-bit resolution, 192 kHz sampling rate, and a dynamic range of 103 dB for each of the two microphone inputs. The device also offers high accuracy frequency response compensation and low THD+N. This makes it an ideal device for consumer audio applications, as it offers a low parts count, quick time-to-market, and minimal hardware cost.

The CS43L21-CNZ utilizes switched-capacitor and Delta-Sigma topologies in each of its three pipeline stages. The first stage is the Modulator and Mux stage, which performs the sampling and modulating of the two input signals. It then routes the signals to subsequent stages with the help of a built-in multiplexer. The next stage is the DAC stage, which operates at the full 192 kHz sampling rate. This stage is highly linear and produces very low level signals. The final stage is the Analog Output stage, wherein the signal is adjusted according to the digital volume control, then amplified to its output level. This stage also includes ESD protection and deglitchers to ensure signal integrity.

Due to its low cost and features, the CS43L21-CNZ is becoming a popular choice in consumer audio applications. It is used in many analog and digital signal processing applications such as signal-to-noise ratio maintenance, sampling clocks, signal extrapolation and signal bandwidth expansion. This makes it the ideal choice for a wide range of consumer audio applications, such as audio processors, portable media players, and professional audio mixers.

The CS43L21-CNZ provides several additional features that make it the ideal device in its field. It is equipped with an integrated low-power power management subsystem with multiple power configurations, allowing users to tailor the device to their specific needs. It also provides noise canceling and distortion reduction technologies. These technologies reduce the amplitude of noise and distortion produced by the input signals, which results in improved intelligibility and overall audio quality.

The design of the CS43L21-CNZ is tailored for use in consumer audio products and provides an ideal combination of cost and performance. The device is highly reliable, has low power consumption and offers a wide range of features that make it suitable for a variety of audio applications. Its versatile design, coupled with its high performance characteristics, make it an ideal choice for audio processing, playing and recording.

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