CS4334-KSZ

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Data Acquisition - Digital to Analog Converters (DACs) play an important role in various tasks of system engineers and industrial applications. This article outlines the application field and working principle of the CS4334-KSZ DAC.

The CS4334-KSZ is a high-accuracy low-power, 8-bit, serial-input, voltage-output digital-to-analog converter (DAC). This device features a guaranteed 80 dB spurious-free dynamic range (SFDR) up to 200 kHz and achieves an excellent signal-to-noise ratio (SNR) of 86 dB in bipolar output mode. Because of its low power consumption properties, the CS4334-KSZ is well suited for mobile and battery powered applications, where low-noise and high-accuracy performance are needed. Additionally, the CS4334-KSZ has a small, low-profile package that makes it easy to implement in space-constrained designs.

The CS4334-KSZ has a wide range of application fields, such as Consumer Electronics, Industrial, PWM Controllers and Motor Control, Data Acquisition and Conversion, Audio Processing, and Automotive. The device features an 8-bit digital input with 8-bit resolution and supports Digital Audio Interface (DAI) formats such as I2S, DSD, and TDM.

The CS4334-KSZ uses complementary metal-oxide-semiconductor (CMOS) technology and a string architecture for DAC conversion. This architecture allows the DAC to directly convert digital audio streams with minimal latency and no external components. The device also features an on-chip precision reference, enabling it to maintain accuracy over a wide supply range and temperature conditions. The device also supports power load protection, under-voltage lockout protection, and soft-stop on power mode changes.

The device supports a single supply input range from 2.2 to 3.6V and has an output voltage range from VDD – 0.1 to VDD + 0.2V. It has an input delay of 4 µs and so-called “Autocalibration” function, where an on-chip microcontroller calibration routine is triggered when external control over the MUTE pin is activated to guarantee linearity and excellent signal-to-noise ratio performance.

The CS4334-KSZ has a high level of integration, supporting both single-ended and differential outputs. It also has an integrated low-noise linear regulators (LDOs) to supply digital and analog voltage rails, and on-chip filter with configurable filter cutoff frequency, making the design fast and reliable. At just 2.1 mm x 3.2 mm in size, the CS4334-KSZ can be easily integrated into a wide range of system designs.

In conclusion, the CS4334-KSZ is a high-accuracy low-power, 8-bit, serial-input, voltage-output digital-to-analog converter (DAC). It has wide applications in audio processing, motor control, and data acquisition and conversion, and demonstrates an excellent signal-to-noise ratio performance with a guaranteed 80 dB spurious-free dynamic range (SFDR) up to 200 kHz. Furthermore, the device features a small, low-profile package that makes it easy to integrate into space-constrained designs, and its on-chip precision reference allows it to maintain accuracy over a wide supply range and temperature conditions.

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