Texas Instruments FDC1004QEVM, User Manual

Page: 5 / 16

FDC1004 USB to I2C SENSOR
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Setup
Figure 1. FDC1004QEVM : Sections
2.2 Input/Output Connector Description
J1, J2 : 4x1 Header: the I/O ports of sections between the USB to I2C and the FDC1004Q sections. This
provides the I2C communication channel and the power connections between these two sections should
the EVM be separated into sections. A simple 4 wire cable can be used to interface the sections.
Table 2. J1, J2 Pin Out
Pin Pin Description
J1.1 J2.1 GND
J1.2 J2.2 VDD
J1.3 J2.3 SCL
J1.4 J2.4 SDA
J3 : USB interface to connect the EVM to a PC; it also provides power to the EVM.
J4 : 10x1 Headers. This is not populated by default. It provides an easy method to change sensors or to
remotely place the sensor away from the FDC1004Q. This connector with its counterpart, J5, allows the
communication of the two modules through a 10-wire cable.
Table 3. J4 Pin Out
Pin Description
J4.1 GND
J4.2 SHLD1
J4.3 CIN1
J4.4 CIN2
J4.5 SHLD1
J4.6 SHLD2
J4.7 CIN3
J4.8 CIN4
J4.9 SHLD2
J4.10 GND
J5 : 10x1 Header, for the electrical connection between the FDC1004 and the sensor section.
5 SNAU178 – April 2015 FDC1004QEVM User's Guide
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