User's Guide
SNAU178 – April 2015
FDC1004QEVM User's Guide
1
Introduction
The FDC1004QEVM evaluation kit is a plug and play system to test and evaluate the FDC1004Q, AEC-
Q100 qualified, 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 FDC1004Q and the third section is a touchless sensor (to demonstrate the sensitivity
of the FDC1004Q) . The third section can be removed and replace with customized sensors to evaluate
the capabilities of the FDC1004Q in various applications. The FDC1004QEVM can be used with the
FDC1004EVM GUI. The software is able to configure the FDC1004Q’s registers, display on four graphs
(one for each measurement) the capacitive values and export data in CSV format.
The EVM contains one FDC1004Q (See
).
Table 1. Ordering
DEVICE
IC
Package
U1
FDC1004QDGS
VSSOP 10pin
2
Setup
This section provides a general description about FDC1004QEVM, its I/O connectors and how to properly
setup the evaluation module.
2.1
FDC1004QEVM
The FDC1004QEVM is divided in three sections:
1. USB to I2C section: this has the purpose to interface the communication of FDC1004Q to a USB port.
2. FDC1004Q section: this section embeds FDC1004Q capacitive to digital converter.
3. Sensor section: this section contains a capacitive sensor that can be used for human proximity.
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 FDC1004Q.
4
FDC1004QEVM User's Guide
SNAU178 – April 2015
Copyright © 2015, Texas Instruments Incorporated