AFE4400SPO2EVM

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 have become one of the most important and popular platforms available for electronic device applications. They allow engineers and technicians to explore a wealth of possibilities, from developing the latest products from scratch to optimizing existing designs. The AFE4400SPO2EVM evaluation board from Texas Instruments is a cost-effective platform for testing and evaluating photometric solutions based on TI\'s AFE4400 family of analog front end (AFE) integrated circuits (ICs).

The AFE4400 family of ICs has been designed to facilitate the measurement of thoracic-level oxygen saturation (SpO2) using LED signals in medical devices and wearable systems. The AFE4400SPO2EVM board, a SPI-to-LED five-phone cable connection test platform, features basic hardware necessary for photometric solution evaluations. It integrates two LEDs and an ambient light sensor into a single board, along with ESD and EMC protection circuitry. This allows users to easily expand, modify, and optimize their photometric solutions projects.

The AFE4400IC is a critically important part of the AFE4400SPO2EVM system, as it is responsible for the analog-to-digital (A/D) conversion of the signal from the photo-diode. The AFE4400IC IC consists of a low-noise gain amplifier, a noise canceller, a gain setting circuit, and an analog-to-digital converter (ADC). The gain is adjustable from 8x to 64x, allowing the user to fine-tune the performance of the signal chain to match their particular design requirements. The noise cancellation loop works to reduce noise from ambient light, improving the device\'s overall performance.

The AFE4400SPO2EVM board integrates two LEDs and a photodiode, which allows the user to test various LED and photodetector combinations. The board also incorporates a programmable gain amplifier, allowing the user to optimally match the analog front end to the target system. The system also includes the ability to change the pulse-width and pulse-frequency of the LEDs, allowing the user to simulate different light conditions. In addition, the system includes a peak detector register, which is used to help set the appropriate LED drive level for the ambient light conditions.

The AFE4400SPO2EVM board also offers the convenience of being able to operate in real-time, allowing the user to measure the signal chain performance as they adjust parameters or other settings. This makes troubleshooting and optimization of the signal chain much simpler. With its integrated on-board programming interface, users can also download pre-defined models and set points to evaluate them quickly and easily. This greatly simplifies the process of evaluating different components or testing modifications for existing designs.

The AFE4400SPO2EVM board is a powerful tool for exploring the world of photometric solutions. Its combination of features, design flexibility, and real-time operation make it an ideal solution for users looking to test their device applications quickly and accurately. For engineers and technicians of all levels, the AFE4400SPO2EVM board provides an exemplary platform for evaluating and optimizing a wide variety of photometric designs.

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