Perforation # 2
Perforation # 1
Perforation # 3
MSP430
Channel 0 Sensor
Connector for custom coil
330pF capacitor
LDC131x/161x IC
LEDs
Channel 1 Sensor
User's Guide
SNOU133 – December 2014
LDC131x and LDC161x EVM User’s Guide
1
Overview
The LDC131x/161x EVM demonstrates the use of inductive sensing technology to sense and measure the
presence or position of conductive target objects. The EVM contains two example LC tank sensors that
are connected to the LDC131x/161x input channels. The latter is controlled by an MSP430, which
interfaces to a host computer.
Figure 1. LDC1312/1612 Evaluation Module
The LDC1312/1612 EVM includes two example PCB sensors which are PCB inductors with 330 pF 1%
COG/NP0 capacitors connected in parallel to form an LC tank. LDC1314/1614 includes two additional
spaces to which two sensors can be connected.
When the evaluation module first powers up from the USB port, it will flash a series of green and red LED
lights to indicate self-test. When the self-test is finished, the green LED turns on, which indicates the
connection of the EVM to the host computer.
Figure 2. Perforations of the Evaluation Module
5
SNOU133 – December 2014
LDC131x and LDC161x EVM User’s Guide
Copyright © 2014, Texas Instruments Incorporated
