CS4412A-CNZ

Series:	Popguard®
Packaging:	Tray
Part Status:	Obsolete
Type:	Class D
Output Type:	2-Channel (Stereo) or 4-Channel (Quad)
Max Output Power x Channels @ Load:	30W x 1 @ 4 Ohm; 15W x 2 @ 8 Ohm
Voltage - Supply:	8 V ~ 18 V
Features:	Depop, Short-Circuit and Thermal Protection, Standby
Mounting Type:	Surface Mount
Operating Temperature:	-10°C ~ 70°C (TA)
Supplier Device Package:	48-QFN-EP (9x9)
Package / Case:	48-QFN
Base Part Number:	CS4412A

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Linear Amplifiers – Audio: CS4412A-CNZ Application Field and Working Principle

Linear audio amplifiers are an essential device for transmitting audio signal from a source to an output device, such as speakers or headphones. The CS4412A-CNZ linear amplifier from Cirrus Logic offers a high-performance, cost-effective solution for applications requiring audio amplification. This article will discuss the application field and working principle of the CS4412A-CNZ amplifier.The CS4412A-CNZ is a monolithic, bipolar linear amplifier designed for driving audio outputs. It is designed for use in audio systems such as stereo amplifiers, tape decks, CD players, and digital signal processors. The amplifier operates in the class AB mode, with a voltage gain of 20dB and a power gain of 3.8W RMS. It supports a wide range of audio signals, thanks to a low noise figure of only 1.6dB and a high signal-to-noise ratio of 95dB. The amplifier also features a high slew rate of 600V/µs, enabling it to provide rapid transient response for dynamic audio signals.The CS4412A-CNZ features two independent channels, allowing it to be used for stereo applications. Each channel includes two differential inputs, allowing for a differential input signal. The amplifier also includes a mute feature, which allows for quieter operation and low distortion during audio pauses. The mute feature is controlled by a logic signal, which is typically generated by the audio processor.The components of the CS4412A-CNZ are designed to maintain accuracy and stability over a wide range of temperatures. This ensures that the amplifier operates properly in different operating environments, such as in a car or in an audio system cabinet. The amplifier is also designed to be tolerant of power transients and supply voltage changes.The CS4412A-CNZ amplifier operates with a supply voltage range of 4.5 to 16.5V. It has an output current of up to 4A and a quiescent power dissipation of 10mW. It is designed to provide a low-distortion audio output, with THD+N of 0.03%.The CS4412A-CNZ amplifier is capable of driving a wide variety of speakers and headphones. It is capable of driving headphones with impedances from 8 to 600 ohms. It can also drive almost any low-impedance speaker, from 4 to 8 ohms. The amplifier includes protection circuitry to prevent damage due to over-current, over-voltage, and short circuit situations.In conclusion, the CS4412A-CNZ amplifier from Cirrus Logic offers a high-performance, cost-effective solution for applications requiring audio amplification. It provides a wide range of features and protection circuitry, making it suitable for a variety of audio devices.

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