DC569B

Due to market price fluctuations, if you need to purchase or consult the price. You can contact us or emial to us:   sales@allicdata.com

Evaluation and Demonstration Boards and Kits are popular tools for designers and engineers who need to quickly evaluate components or demonstrate communication systems without having to invest the time and effort into prototyping and developing a full system. The DC569B is one such evaluation board specifically designed for Data Acquisition applications. DC569B uses field programmable gain amplifier (PGA) to directly digitize input signals. This article will look at the application fields and working principle of the DC569B.

The application fields of the DC569B are extensive, with the primary purpose of enabling audio signal processing applications such as noise cancelling, equalizing, and sound synthesis. It is also popular in medical imaging data acquisition for ultrasound and magnetic resonance imaging, and sensor array applications such as audio beamforming. A main advantage of the DC569B is its low power consumption, with power draw typically under 100 mW, making it particularly well-suited for wearables and portable applications.

The DC569B works by using the PGA to provide gain, offset, and anti-aliasing filtering of input signals. The PGA is designed to amplify a low level input signal directly to a digital scaling range, bypassing the need to use an analog amplifier with an external 12-bit ADC. The gain can be adjusted from -3 dB to +50 dB with a resolution of 0.5 dB. The DC569B also supports multiplexing of two differential channels or four single-ended inputs. All signal conditioning and processing is performed by the DC569B, with filtered and converted data sent directly to a digital interface.

The DC569B also includes an integrated gain code detector, allowing the gain to be set manually or automatically for dynamic range optimization. This gain setting is performed once per frame and does not need to be performed on each sample. The remaining parts of the block diagram are the sample-and-hold circuit, the low pass filter, the ADC and the digital signal processor. The DC569B is designed to be interfaced with a host processor, allowing initial configuration and the storage of data for further analysis.

In conclusion, the DC569B evaluation and demonstration board is an ideal solution for audio signal processing, medical imaging data acquisition, and sensor array applications. With its low power consumption, multiplexing options, and integrated gain control, the DC569B can help designers quickly evaluate components or demonstrate communication systems without the need for extensive prototyping or development of a full system.

The specific data is subject to PDF, and the above content is for reference