FDC1004EVM User Guide

FDC1004EVM User's Guide

The FDC1004EVM evaluation kit is a plug and play system to test and evaluate the FDC1004, 4-Channel capacitive to digital converter. The EVM is a breakable PCB which consists of 3 sections. The first section is a USB to I2C converter based on MSP430F5528 micro-controller, the second section contains the FDC1004 and the third section is a touchless sensor (to demonstrate the sensitivity of the FDC1004) . The third section can be removed and replace with customized sensors to evaluate the capabilities of the FDC1004 in various applications. The FDC1004EVM can be used with the Sensing Solutions EVM GUI. The software is able to configure the FDC1004’s registers, graph the measured values, and export the data in CSV format.

The EVM contains one FDC1004 (See Table 1).

Table 1. Ordering

DEVICE	IC	Package
U1	FDC1004DSC	SON 10pin

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1 Setup

This section provides a general description about FDC1004EVM, its I/O connectors and how to properly setup the evaluation module.

1.1 FDC1004EVM

The FDC1004EVM is divided in three sections:

1. USB to I2C section: this has the purpose to interface the communication of FDC1004 to a USB port.
2. FDC1004 section: this section embeds FDC1004 capacitive to digital converter.
3. Sensor section: this section contains a capacitive sensor that can be used for both human proximity and simple gesture recognitions..

The EVM has precut lines on the borders of each section that allow for a flexible and specific system design. As an example of the flexibility of this design, the sensor can be replaced with a customer sensor, or the MCU section can be separated to allow for a remote placement of the FDC1004.

Figure 1. FDC1004EVM : Sections