DC1791A-B

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DC1791A-B is an evaluation and demonstration board and kit developed by the renowned Texas Instruments. It is primarily designed for customers and developers seeking to evaluate and demonstrate the capabilities of audio amplification products. The board is powered by a Lithium-Ion battery, allowing engineers complete portability during testing in a wide variety of scenarios and environments. The DC1791A-B board is intended to allow for the fast prototyping of products or to help debug complicated audio issues quickly and easily.

The working principle behind the DC1791A-B board is relatively straightforward and easy to use. At the heart of the board is the Texas Instruments TAS5614 audio IC. It functions as the main amplifier for the board and provides an effective way to drive loudspeakers at up to 27W RMS into 4, 6, 8 and 10 ohm loads. The TAS5614 uses a single 5V input supply for its 24Vpp operating range. To further increase the audio output power, the DC1791A-B board also features a selectable compression circuit. The compression circuit can provide up to 90% more output power in situations where higher output is needed.

The DC1791A-B board also features an integrated user interface in the form of a four-push button controller. The buttons allow the user to control the board’s features and settings in an intuitive and user-friendly way. With these controls, engineers can easily adjust the board’s gain, frequency response, and THD parameters in order to get the ideal sound without having to resort to complex algorithms or costly PC software.

In addition to the main TAS5614 audio IC, the DC1791A-B board also utilizes several other supporting ICs to further enhance its user-friendliness and efficiency. These include a PAM8403 headphone amplifier and a TLE4945 digital microphone pre-amp. The amplifier offers a good balance of power versus THD for headphones while the microphone pre-amp is helpful for applications requiring excellent sound fidelity and audio quality.

Overall, the DC1791A-B is an excellent board and kit for customers and developers seeking to evaluate and demonstrate the capabilities of audio amplification products. It is an affordable solution for prototyping and provides an intuitive user interface for helpful control over the board’s settings and features. A number of supporting ICs are also integrated in the board for good sound quality and further convenience during testing and usage.

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