BH2228FV-E2 Integrated Circuits (ICs)

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Data Acquisition and Digital to Analog Conversion (DAC) involves a range of systems with a range of capabilities and purposes. One example is the BH2228FV-E2, a multifunctional 30-bit digital-to-analog converter (DAC) IC, which is popular for its cost-effective, versatile, and custom programmable features. This article will discuss the application field and working principle of the BH2228FV-E2.

Application Field

The BH2228FV-E2 is designed for a large variety of applications as a cost-effective and flexible DAC, applicable for both consumer and industrial equipment. Its major application fields include:

• Audio – The BH2228FV-E2 is suitable for many consumer audio applications due to low noise, high linearity, and low distortion ratings. It is typically used together with digital signal processors (DSPs) to provide analog audio outputs in consumer audio equipment.
• Video – The BH2228FV-E2 can be used to generate high-quality video output signals. It is applicable for both seamless video entertainment and audiovisual advertising equipment.
• Industrial – The BH2228FV-E2 is suitable for a range of industrial applications, including automotive, robotics, and machine tooling. It is also suited for military and aerospace applications, where reliable high-precision outputs are required.

Working Principle

The BH2228FV-E2 DAC works by taking a digital input and converting it into an analog voltage output. The device operates on the principle of pulse width modulation (PWM). The PWM process involves mapping the digital code onto a pulse train, where the magnitude of the analog output is controlled by the duty cycle of the pulse.

Firstly, the on-chip clock generator generates the modulation clock, which is then used to create an internal modulation reference voltage. This reference voltage is compared against the modulated input signal, outputting a modulated triangular waveform. This waveform is then filtered to generate the analog output voltage. The magnitude of the output voltage is directly affected by the modulating digital code.

The BH2228FV-E2 is designed to offer high-accuracy output. It has a resolution of up to 30 bits, ensuring accurate digital-to-analog conversion. In addition, the device features a noise-reduction architecture which minimizes the effects of input clock jitters and harmonic interference.

Conclusion

The BH2228FV-E2 is a highly versatile and cost-effective digital-to-analog converter IC, designed for a range consumer and industrial applications. It operates on the principle of pulse width modulation, providing high resolution and low noise outputs. It is particularly suitable for consumer audio and video systems, as well as for many industrial applications.

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