CS4362-KQZR

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CS4362-KQZR is an audio-to-digital-to-analog converter (ADC/DAC) IoT device intended for applications in audio production. It is a mixed-mode integrated circuit, combining analog and digital circuits to enable full-duplex transmission of digital audio streams over a network. The device provides a single-ended I/O port with a simultaneous digital output at 24 bits.

This device offers superior audio performance for speaker systems and computer-generated audio in music production, broadcasting, and other applications where clear audio is needed. It features an optimized design that lowers Total Harmonic Distortion (THD+N), enabling up to 116 dB of signal-to-noise ratio. It also features easy implementation, with a fixed-frequency input, analog-to-digital (A/D) looping, and a programmable gain stage, allowing the user to control gain from 0 dB to 63 dB, making it the ideal solution for multipoint audio transmission projects.

The CS4362-KQZR’s working principle is based on the concept of sampling an audio signal and converting it into a digital equivalent. At the hardware level, the device uses a two quantizer architecture to convert analog input signals into digital data, and a digital-to-analog converter (DAC) to turn the digital signal back into an analog output.

The device performs sampling and Analog-to-Digital (A/D) conversion operations in two parallel stages. Firstly, the input signal is sampled via an internal sample rate clock and keyed into a 12-bit sigma-delta modulated A/D converter. This converter then digitizes the signal by performing signal-to-noise ratio optimization, followed by signal processing for dynamic range control and time-frequency conversion, to a final data rate of 192 kHz.

The output of the A/D converter is then transmitted to a 24-bit DAC for Digital-to-Analog (D/A) conversion. The DAC is optimized for high-resolution playback and low distortion. It reassembles the signal from the converter and transforms it into an analog signal via a low-distortion, low-noise architecture.

The CS4362-KQZR also provides a dynamic range adjustment feature that acts as a gain control. This feature allows the user to adjust the signal level of the digital/analog output over a fixed range of 0 dB to 63 dB. The device pre-calibrates the dynamic range and provides a wide-ranging adjustable dynamic range. This helps to ensure that digital signal signals remain within their dynamic range and accuracy is improved.

The CS4362-KQZR offers high audio performance in a low-power, compact package. It has a power dissipation of 7 mW in a 5 x 5 mm footprint. Its low-power capabilities make it ideal for applications in audio production, and it is compatible with a number of industry-standard systems and networks.

The CS4362-KQZR is a versatile, high-performance ADC/DAC device that is suitable for applications in professional audio production. With its superior performance, low power consumption and easy implementation, it is an ideal choice for audio production and other I/O applications that demand top-quality, reliable audio transmission over an extended range.

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