User's Guide
SNOU139 – October 2015
FDC2214 Proximity and Capacitive Touch EVM User’s
Guide
1
2
3
4
5
6
7
Contents
Overview ...................................................................................................................... 2
Hardware...................................................................................................................... 3
2.1
Grounded versus Floating Systems .............................................................................. 3
2.2
Proximity Sensor .................................................................................................... 4
2.3
Capacitive Touch Buttons ......................................................................................... 4
2.4
Reset Button ......................................................................................................... 5
2.5
Optional Features Descriptions ................................................................................... 5
2.6
Additional Debugging Features ................................................................................... 6
Firmware ...................................................................................................................... 6
3.1
FDC2214 Register Configuration ................................................................................. 6
3.2
Programming ........................................................................................................ 7
Setup .......................................................................................................................... 7
Operation ..................................................................................................................... 8
Board Layout ................................................................................................................ 10
Schematic ................................................................................................................... 13
List of Figures
1
FDC2214 Proximity and Capacitor Touch Sensing EVM ............................................................... 2
2
System Level Block Diagram ............................................................................................... 3
3
Component Layout Location of Board on Top Side and Bottom Side ................................................ 3
4
Sensor Size Area Versus Sensing Distance ............................................................................. 4
5
Comparison of Capacitance vs Target Position for Covered and Non-covered Sensors .......................... 5
6
: JTAG Pin Out Diagram .................................................................................................... 7
7
Proximity Sensor Waveform (Yellow), Cap Touch Button 1/2 Waveforms (Green and Magenta) ................ 8
8
Proximity Startup Waveform (Yellow), Cap Touch Button 1/2 Startup Waveforms (Green, Magenta)
9
Sensor Multiplexing – Proximity (Yellow), Cap Touch Button 1 and 2 (Green, Magenta)
10
11
12
13
14
15
.......... 9
......................... 9
Composite Top and Bottom Layer Plot (Viewed From the Top) ..................................................... 10
Top Layer.................................................................................................................... 10
Midlayer 1 (Power Plane) ................................................................................................. 11
Midlayer 2 (GND Plane) ................................................................................................... 11
Bottom Layer ................................................................................................................ 12
Schematic ................................................................................................................... 13
List of Tables
1
Optional Feature Use Cases ............................................................................................... 5
2
FDC2214 Register Configuration .......................................................................................... 6
3
JTAG Connector Pin Assignment.......................................................................................... 7
4
Proximity and Capacitive Touch Sensor Properties ..................................................................... 8
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FDC2214 Proximity and Capacitive Touch EVM User’s Guide
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1
Overview
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Overview
The FDC2214 proximity and capacitive touch button board demonstrates the use of TI’s capacitive
sensing technology to sense and measure the presence of various objects. The board is a complete
hardware and firmware solution that integrates the FDC2214, MSP430FR5969, and TPS61029 into one
design. The firmware included processes the data from one proximity sensor and two capacitive touch
buttons via the FDC2214 to determine whether an object is in the intended sensing area. All of the
processing is done on the MSP430 allowing the board to be a standalone system. Dedicated colored
LEDs light up once the device detects a target in close proximity to the board or detects a press on the
buttons. The board is designed to operate with one AA-battery. The maximum sensing distance that can
be reliably achieved with the board is 10 cm (4 inches) as a floating system and 50 cm (19.6 inches) as a
grounded system. The cap touch buttons and firmware have been optimized to be very responsive to
quick user touch interactions
The hardware uses the 4-channel FDC2214 to multiplex through each of the three capacitive sensors: one
proximity sensor and two capacitive touch buttons. As the firmware in the MSP430 detects a user
approaching the board, a green LED lights up to indicate that an object has been detected. If the user
touches Button1, Button2, or both of them simultaneously, their corresponding red LED lights up. The
board integrates the FDC2214, MSP430FR5969 and the TPS61029 as a complete standalone system.
Figure 1 shows the top side of the reference design.
Figure 1. FDC2214 Proximity and Capacitor Touch Sensing EVM
2
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Hardware
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2
Hardware
3.3V
SW
3.3V
FDC2214
TPS61029
VOUT
+
VBAT
VBAT
FB
EN
VDD
CLKIN
40MHz
LBI
Int. Osc.
LBO
GND
Proximity
IN0A
L
C
IN0B
PS
GND
Resonant
circuit
driver
PGND
MCU
Core
SD
INTB
GPIO
GPIO
IN1A
L
C
Resonant
circuit
IN1B
driver
3.3V
VDD
GPIO
3.3V
GPIO
GPIO
Button1
IN2A
L
C
IN2B
Resonant
circuit
driver
I2C
I2C
peripheral
SDA
SCL
GND
ADDR
Button2
Figure 2. System Level Block Diagram
Figure 3 illustrates the features of the top side and bottom side of the board. The proximity sensor
consists of a copper bezel arranged around the perimeter of the board. The board is 10.16 cm by 12.7 cm
(4 x 5 inches). The proximity sensor is 19.05 mm (0.75 inches) wide and conforms to the edges of the
board. The buttons are 20.32 mm (0.8 inches) diameter sensors arranged in the center of the board. A cut
out on the proximity sensor where the battery is located is necessary since the battery acts as a ground.
This limits the amount of direct capacitive coupling seen by the sensor.
AA Battery
Holder
LED
TPS61029
LED
LED
JTAG Connector
MSP430FR5969
Button 2
FDC2214
Button 1
GND SHLD
GND SHLD
LED
LED
RESET
Proximity Sensor
Top Side of EVM
Bottom Side of EVM
Figure 3. Component Layout Location of Board on Top Side and Bottom Side
2.1
Grounded versus Floating Systems
There are two typical scenarios in how a capacitive sensing system is designed relative to its ground
reference: a grounded system and a floating system. A grounded system means the system is referenced
to or very close to earth ground. A floating system means the system is referenced to the “ground”
reference of the source that is generating the power for the system, for example a battery. As an example,
a laptop that is operating with its charger connected to a wall outlet is grounded whereas a laptop
powered solely on its battery is a floating system.
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Hardware
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The sensitivity of a grounded system is more significant compared to a floating system, especially if the
intended target is the human body. The human body will have a voltage potential close to earth ground
(same or close to system ground) while the voltage potential of the floating system can be significantly
different. This difference in potential directly corresponds to a difference in sensitivity or sensing distance.
This EVM uses a AA-battery as its power source so
2.2
Proximity Sensor
The proximity sensor on the board was designed to detect a human hand at 50 cm using a grounded
system and 10 cm with a floating system. Sensitivity is defined as maximum sensing distance, at which
point the shift in the measured capacitance exceeds the detection threshold, which is determined by the
system noise level. Figure 4 shows a plot of the sensing distance the FDC2214 can achieve with a given
sensor size area in a grounded system. A solid square sensor was used to collect the data in Figure 4.
60
Sensing Distance (cm)
50
40
30
20
10
0
0
5
10
15
20
25
30
35
40
Sensor Area - square sensor (cm2)
45
50
D002
Figure 4. Sensor Size Area Versus Sensing Distance
The proximity sensor on the EVM is designed around the edges of the board in a bezel configuration. The
actual sensor size area is 59 cm2 with the spatial sensor size area spanning 121 cm2. All of the electronics
are located in the middle of the proximity sensor.
One of the major factors that affect sensitivity of a proximity sensor is the size and location of the nearest
ground potential. The layout of the board minimizes the ground plane as much as possible. A ground
plane underneath the sensor significantly reduces sensitivity. For example, if a ground shield is directly
below and the same size as the sensor, sensitivity is reduced by 50%. Noise in the system and in the
environment also affects sensing performance.
The system was optimized and tested in a low noise environment. Variations and false triggers may occur
depending on the surrounding environment. The algorithm thresholds in the firmware may need to be
adjusted accordingly to fit a specific environment condition
2.3
Capacitive Touch Buttons
The circular buttons measure 20.32 mm (0.8 inches) in diameter. Capacitive touch buttons require less
attention to sensitivity in terms detecting small changes in capacitance simply because the intent is to
detect a touch event. Typically, changes in capacitance on the order of picofarads are required in
detecting button presses. The same factors that affect sensitivity for proximity still apply for capacitive
touch buttons. A solid or hatched ground pad/shield underneath the button sensor can be used to
moderate the sensitivity of the button and mitigate unintentional touch events.
In most applications, the user interacts with the button sensor directly. In some applications, there may be
a protective cover or a piece of isolation material to prevent direct contact with the sensor (for quality and
reliability purposes). Sensitivity performance is dependent on the material and thickness of the material.
Figure 5 shows a simulated sensitivity analysis for a proximity sensor. Capacitive touch buttons rely on a
large response to determine when a press is detected directly on the sensor. The simulation shows that at
close range, including the touch condition, a protective cover (in this case PVC) can actually enhance the
response. However, this effect is observed over a limited range and at longer ranges shows little impact.
4
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Capacitance Change From Baseline (fF)
450
Air Only
Air and PVC Cover
Difference
400
350
300
250
200
150
100
50
0
0
2
4
6
8
10
Target Distance From Sensor (cm)
12
D001
Figure 5. Comparison of Capacitance vs Target Position for Covered and Non-covered Sensors
2.4
Reset Button
A reset button (Figure 3) is included in the design to perform a soft reset to the system if there are any
disruptions to the board relative to its environment. For example, if the board is picked up and moved to a
different area, its baseline capacitance can dramatically change. The derivative-integration algorithm
implemented in this system may take some time to recover from this change in the baseline capacitance,
so the reset button can be used to eliminate this recovery time. Once the reset button is pressed, LED D2
and D3 near the button temporarily light up indicating that an initial calibration is being performed.
NOTE: A two second delay is implemented prior to the calibration process. During calibration, no
target or object should be in the intended sensing area. The LEDs turn off after calibration
and the system is fully operational.
2.5
Optional Features Descriptions
There are several optional features (Table 1) implemented in the design that can be suitable for future
system investigations:
Table 1. Optional Feature Use Cases
Part Designator
Description
J3
3 GPIO pinouts on a 3 pin 100 mil header
Debug and prototype
R24
Pull-up resistor on the supply pin of the FDC2214
Allows for current measurements for low power
(LP) applications
R25
Pull-up resistor on the supply pin of the external
oscillator
Power gating to reduce current for LP applications
R26
Pull-down resistor on the enable pin of the external
oscillator
Enable gating to reduce current consumption for
LP application
R28, R29, R31
Series resistors on channel inputs of FDC2214 to
sensors
Connecting external sensors for evaluation and
prototyping purposes
R32, R34
Resistors to connect GND SHLD capabilities
Understanding how ground shields affect sensitivity
and interference
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Hardware
2.6
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Additional Debugging Features
There are several hooks integrated in the design to debug the power supply rails and the I2C bus lines. To
debug the system in real time, the backchannel UART on the MSP-FET tool is connected to the UART_A1
module on the MSP430FR5969. The JTAG connector pins 12 and 14 (blue colored pins in Figure 6)
correspond to the transmit and receive signal lines respectively. The firmware implements functions to
transmit ASCII characters to a PC serial COM port host. The backchannel UART is disabled (relevant
code is commented out) in the firmware by default. To enable the UART functions, uncomment the UART
code, recompile the firmware, and load it to the MSP430 to use this functionality.
3
Firmware
3.1
FDC2214 Register Configuration
The full set of register contents used to configure the FDC2214 for this application can be found in
Table 2.
Table 2. FDC2214 Register Configuration
6
Register
Address
Name
Value
Description
0x08
RCOUNT_CH0
0x9C40
RCOUNT of 40000 (~16 ms conversion time)
0x09
RCOUNT_CH1
0x03E8
RCOUNT of 1000 (~400 µs conversion time)
0x0A
RCOUNT_CH2
0x03E8
RCOUNT of 1000 (~400 µs conversion time)
0x10
SETTLECOUNT_CH0
0x0064
100 cycles before measurement taken
0x11
SETTLECOUNT_CH1
0x0064
100 cycles before measurement taken
0x12
SETTLECOUNT_CH2
0x0064
100 cycles before measurement taken
0x19
ERROR_CONFIG
0x0001
Report data ready flag by asserting INTB pin
0x1A
CONFIG
0x1E01
Active mode enabled
Low power activation mode enabled
Reference frequency provided from CLKIN pin
INTB pin enabled
Normal sensor drive current enabled
0x1B
MUX_CONFIG
0xA20D
Auto-scan conversions enabled
Auto-scan sequence: Ch0, Ch1, CH2
Deglitch filter: 10 MHz
0x1E
DRIVE_CURRENT_CH0
0x5000
Current drive set to 0.069 mA
0x1F
DRIVE_CURRENT_CH1
0x5800
Current drive set to 0.081 mA
0x20
DRIVE_CURRENT_CH2
0x5800
Current drive set to 0.081 mA
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3.2
Programming
Programming new firmware on to the MSP430 through Code Composer Studio (CCS) can be performed
in two ways:
• MSP-FET emulation tool via JTAG connector
• Spy-by-wire from an MSP430 LaunchPad
The JTAG connector (as shown in Figure 6) can be used with the MSP-FET tool for programming. Table 3
shows the signal names assigned to the pins of the JTAG connector. The JTAG is not populated by
default so the connector or 100 mil pitched headers need to be soldered on to the board to use for
programming and debugging
4
6
8
10
12
14
1
3
5
7
9
11
13
JTAG
2
Figure 6. : JTAG Pin Out Diagram
Table 3. JTAG Connector Pin Assignment
Pin
Signal
Description
1
TDO
JTAG data output
2
VCC_TOOL
JTAG voltage selection from tool
3
TDI
JTAG data input and TCLK input
4
VCC_TARGET
Not Connected
5
TMS
Signal to control the JTAG state machine
6
NC
Not connected
7
TCK
JTAG clock input
8
SBWTCK
Spy-by-wire clock
9
GND
Ground
10
NC
Not connected
11
SBWTDIO
Spy-by-wire bidirectional signal IO
12
A1_TX
UART_A1 transmit signal (for debugging)
13
NC
Not Connected
14
A1_RX
UART_A1 receive signal (for debugging)
For spy-by-wire interface programming, Figure 6 indicates the yellow colored pins 8, 9, and 11 (SBWTCK,
GND, and SBWTDIO) that need to be connected to the isolation block connections on the MSP430
LaunchPad. SBWRST and SBWTST pins on the LaunchPad need to be connected to SBWTDIO and
SBWTCK test points, respectively. A common ground is required between the board and LaunchPad for
proper operation.
4
Setup
The EVM is designed as a standalone system to run off of one AA-battery. All of the processing and
object detection indications occur on the EVM. To maximize sensing distance, it is recommended to
ensure that the surface is non-conductive and not grounded. The proximity sensing algorithm detects
changes in capacitances on the order of 1fF so it is recommended to fix the position of the board or not
move the board during evaluation to limit any false detection.
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Operation
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Operation
Once the EVM is powered ON, the entire system starts running. LED D2 and D3 near the reset button
temporarily light up indicating that an initial calibration is being performed. A two second delay is
implemented prior to the calibration process. During calibration, no target or object should be in the
intended sensing area. The LEDs turns off after calibration and the system is fully operational.
Table 4 shows the signal properties of the proximity sensor and one of the capacitive touch buttons. They
were obtained by probing either INA or INB of each channel with an oscilloscope. Figure 7 through
Figure 9 illustrate the waveforms for the proximity sensor and the capacitive touch buttons. The
recommended voltage amplitude for the oscillation waveform is between 1.2 and 1.8 VPP. Anything over
1.8 VPP is not recommended because the ESD clamps turns on and become part of the L-C tank, causing
a frequency shift. The voltage amplitude is controlled by setting the current drive value for the channel.
The sensor still functions for voltage amplitudes to a minimum of 0.4 VPP, but the SNR will degrade.
The oscilloscope probe has a capacitive loading effect when probing the sensor signal lines. A FET probe
with low capacitance should be used to minimize the effects.
Table 4. Proximity and Capacitive Touch Sensor Properties
Proximity Sensor
Capacitive Touch Button 1
Capacitive Touch Button 2
Sensor Frequency
5.30
5.41
5.60
1.42
Amplitude (mV)
1.22
1.44
Settling Time (us)
3.89
3.33
3.15
Current Drive Setting (mA)
0.069
0.081
0.081
Figure 7 and Figure 8 show the oscillation and startup waveforms for the proximity sensor and capacitive
touch buttons. The yellow waveform corresponds to the proximity sensor while the green and magenta
waveform corresponds to the capacitive touch button 1 and 2. The FDC2214 may be configured for
current overdrive at the beginning of a conversion cycle, as illustrated in Figure 8. This feature can be
used to reduce the startup up time of the oscillation and hence shorten the overall conversion time.
Figure 9 shows the multiplexing operation of the FDC2214 to collect the measurements from the various
sensors. The proximity sensor’s measurements (yellow) are significantly longer than the capacitive touch
buttons measurements (green and magenta) to obtain a better signal-to-noise ratio. There is a tradeoff
between sampling rate and resolution. For example, the higher the sampling rate, the lower the resolution.
Proximity sensing applications require a high resolution to detect small changes in capacitance (on the
order of a few femtofarads) from the baseline value (no target present). Capacitive touch buttons
requirements are the opposite, in which high resolution is not necessary for a change in capacitance on
the order of picofarads. The proximity sensor has a conversion time of approximately 16 ms while the
capacitive touch buttons have a conversion time of approximately 400 µs.
Figure 7. Proximity Sensor Waveform (Yellow), Cap Touch Button 1/2 Waveforms (Green and Magenta)
8
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Figure 8. Proximity Startup Waveform (Yellow), Cap Touch Button 1/2 Startup Waveforms (Green,
Magenta)
Figure 9. Sensor Multiplexing – Proximity (Yellow), Cap Touch Button 1 and 2 (Green, Magenta)
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Board Layout
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Board Layout
Figure 10. Composite Top and Bottom Layer Plot (Viewed From the Top)
Figure 11. Top Layer
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Figure 12. Midlayer 1 (Power Plane)
Figure 13. Midlayer 2 (GND Plane)
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Board Layout
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Figure 14. Bottom Layer
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Schematic
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7
Schematic
+3.3V Boost Output
Testpoints
L1
JTAG
GPIO Pins
3P3V
J1
6.2µH
Q1
BOOST_IN
0
1
R2
499k
1
BT1
R5
200
CL-SB-12B-01T
6
SW
9
VOUT
2
VBAT
C1
10µF
1
EN
FB
3
LBI 7
LBI
LBO
4
PS 8
PS
PGND
PAD
GND
GND
BOOST_IN
GND
R7
499k
10.0k
R10
10.0
GND
196k
C3
100µF
R4
1.00M
GND
GND GND
Q2
CSD25310Q2
AVCC
R9
1.0k
GND
U2
3P3V
D1
2
IN2B_1
TP5
R16
SCL_B0
SDA_B0
FDC_INTB
FDC_SD
4
1
2
5
6
16
15
IN2B
IN2A
14
13
IN2B
IN2A
IN1B
IN1A
12
11
IN1B
IN1A
IN0B
IN0A
10
9
IN0B
IN0A
ADDR
SCL
SDA
INTB
SD
3
VDD
7
R17
IN1B_1
0
L5
CMH322522-180KL
FDC2214RGHR
IN1A_1
0
R20
R22
IN0B_1
0
L6
CMH322522-180KL
IN0B_1
D2
IN0A_1
0
3
C18
0.01µF
2
OUTPUT
GND
VCC
INH
KC2520B40.0000C10E00
40 MHz
GND
R25
4
C19
0.01µF
1
1.0k
1.0k
C15
33pF
Y1
C17
0.1µF
SENSOR_LED0
IN1B_1
BUTTON1_LED
R19
R24
C16
1µF
FDC_ADDR
FDC_INTB
FDC_SD
0
C13
33pF
R23
3P3V
0
P2.7
0
R15
A1_RX
IN2A_1
R21
CLKIN
GND
0
IN3B
IN3A
P2.3
P2.4
3P3V
BUTTON2_LED
1
2
3
9
10
11
31
32
P1.0/TA0.1/DMAE0/RTCCLK/A0/C0/VREF-/VeREFP1.1/TA0.2/TA1CLK/COUT/A1/C1/VREF+/VeREF+
P1.2/TA1.1/TA0CLK/COUT/A2/C2
P1.3/TA1.2/UCB0STE/A3/C3
P1.4/TB0.1/UCA0STE/A4/C4
P1.5/TB0.2/UCA0CLK/A5/C5
P1.6/TB0.3/UCB0SIMO/UCB0SDA/TA0.0
P1.7/TB0.4/UCB0SOMI/UCB0SCL/TA1.0
24
25
26
39
40
20
21
38
P2.0/TB0.6/UCA0TXD/UCA0SIMO/TB0CLK/ACLK
P2.1/TB0.0/UCA0RXD/UCA0SOMI/TB0.0
P2.2/TB0.2/UCB0CLK
P2.3/TA0.0/UCA1STE/A6/C10
P2.4/TA1.0/UCA1CLK/A7/C11
P2.5/TB0.0/UCA1TXD/UCA1SIMO
P2.6/TB0.1/UCA1RXD/UCA1SOMI
P2.7
4
5
6
7
27
28
29
30
P3.0/A12/C12
P3.1/A13/C13
P3.2/A14/C14
P3.3/A15/C15
P3.4/TB0.3/SMCLK
P3.5/TB0.4/COUT
P3.6/TB0.5
P3.7/TB0.6
16
17
18
19
33
34
35
8
P4.0/A8
P4.1/A9
P4.2/A10
P4.3/A11
P4.4/TB0.5
P4.5
P4.6
P4.7
12
13
14
15
45
46
42
43
PJ.0/TDO/TB0OUTH/SMCLK/SRSCG1/C6
PJ.1/TDI/TCLK/MCLK/SRSCG0/C7
PJ.2/TMS/ACLK/SROSCOFF/C8
PJ.3/TCK/SRCPUOFF/C9
PJ.4/LFXIN
PJ.5/LFXOUT
PJ.6/HFXIN
PJ.7/HFXOUT
1
FDC_ADDR
GND
C11
33pF
R14
A1_TX
1
GND
C10
33pF
IN2B_1
2
PAD
GND
R12
4.7k
TP6
C12
33pF
FDC I2C Address: 0x2A (7-bit)
17
8
R11
4.7k
SDA_B0
SCL_B0
GND
U3
3P3V
Super Red
L4
CMH322522-180KL
Green
GND
TDO
TDI
TMS
TCK
D3
Super Red
GND
AVCC
48
DVCC
37
L3
330 ohm
C4
0.1µF
C5
1µF
C6
10µF
3P3V
GND
C7
0.1µF
C8
1µF
C9
10µF
GND
TP7
TEST/SBWTCK
RST/NMI/SBWTDIO
22
SBWTCK
23
SBWTDIO
TP8
3P3V
R18
47k
S2
C14
1000pF
GND
DVSS
36
AVSS
AVSS
AVSS
PAD
47
44
41
49
Reset Switch
0
MSP430FR5969IRGZR
R26
0
GND
A1_TX
A1_RX
GND
10
11
GND
0
SBWTCK
3
LBI threshold set at 1.3V
Capacitance-to-Digital Converter
SBWTDIO
GND
TPS61029DRCR
R13
5-146278-3
SBH11-PBPC-D07-ST-BK
5,6,8
1,2,
GND
3P3V
330 ohm
5
GND
R8
TP4
L2
BOOST_OUT
C2
R3
2.2µF
1.10M
R6
2
4
6
8
10
12
14
3
4
R1
3
1
3
5
7
9
11
13
TDO
TDI
TMS
TCK
P2.4
P2.3
P2.7
1
2
2
1
2
3
2
3
VBAT
2
J2
4,7
TP3
TP1 TP2
U1
MMBT3906-7-F
1
S1
GND
GND
GND
D4
R27
SENSOR_LED0
SENSOR and SHLD Selection
2
300
1
LTST-C150KGKT
Green
R28
SENSOR
BUTTON1
BUTTON2
0
R29
0
R31
0
GND
IN0B_1
GND_SHLD
H1
IN1B_1
IN2B_1
PCB
LOGO
PCB
LOGO
PCB
LOGO
Texas Instruments
Pb-Free Symbol
FCC disclaimer
0
R34
PCB Number: SV601226
PCB Rev: A
0
GND
R30
BUTTON1_LED
1
300
2
H2
1
D5
R32
GND_SHLD2
Hardware
H3
1
NY PMS 440 0025 PH
NY PMS 440 0025 PH
Red
H4
1
1
NY PMS 440 0025 PH
NY PMS 440 0025 PH
H5
H6
H7
H8
1902E
1902E
1902E
1902E
D6
ZZ1
Label Assembly Note
This Assembly Note is for PCB labels only
R33
BUTTON2_LED
1
300
ZZ2
Assembly Note
Provide H1, H2, H3, H4, H5, H6, H7, H8 as loose par ts.
2
FID1
FID2
FID3
Red
GND
Figure 15. Schematic
SNOU139 – October 2015
Submit Documentation Feedback
FDC2214 Proximity and Capacitive Touch EVM User’s Guide
Copyright © 2015, Texas Instruments Incorporated
13
STANDARD TERMS AND CONDITIONS FOR EVALUATION MODULES
1.
Delivery: TI delivers TI evaluation boards, kits, or modules, including any accompanying demonstration software, components, or
documentation (collectively, an “EVM” or “EVMs”) to the User (“User”) in accordance with the terms and conditions set forth herein.
Acceptance of the EVM is expressly subject to the following terms and conditions.
1.1 EVMs are intended solely for product or software developers for use in a research and development setting to facilitate feasibility
evaluation, experimentation, or scientific analysis of TI semiconductors products. EVMs have no direct function and are not
finished products. EVMs shall not be directly or indirectly assembled as a part or subassembly in any finished product. For
clarification, any software or software tools provided with the EVM (“Software”) shall not be subject to the terms and conditions
set forth herein but rather shall be subject to the applicable terms and conditions that accompany such Software
1.2 EVMs are not intended for consumer or household use. EVMs may not be sold, sublicensed, leased, rented, loaned, assigned,
or otherwise distributed for commercial purposes by Users, in whole or in part, or used in any finished product or production
system.
2
Limited Warranty and Related Remedies/Disclaimers:
2.1 These terms and conditions do not apply to Software. The warranty, if any, for Software is covered in the applicable Software
License Agreement.
2.2 TI warrants that the TI EVM will conform to TI's published specifications for ninety (90) days after the date TI delivers such EVM
to User. Notwithstanding the foregoing, TI shall not be liable for any defects that are caused by neglect, misuse or mistreatment
by an entity other than TI, including improper installation or testing, or for any EVMs that have been altered or modified in any
way by an entity other than TI. Moreover, TI shall not be liable for any defects that result from User's design, specifications or
instructions for such EVMs. Testing and other quality control techniques are used to the extent TI deems necessary or as
mandated by government requirements. TI does not test all parameters of each EVM.
2.3 If any EVM fails to conform to the warranty set forth above, TI's sole liability shall be at its option to repair or replace such EVM,
or credit User's account for such EVM. TI's liability under this warranty shall be limited to EVMs that are returned during the
warranty period to the address designated by TI and that are determined by TI not to conform to such warranty. If TI elects to
repair or replace such EVM, TI shall have a reasonable time to repair such EVM or provide replacements. Repaired EVMs shall
be warranted for the remainder of the original warranty period. Replaced EVMs shall be warranted for a new full ninety (90) day
warranty period.
3
Regulatory Notices:
3.1 United States
3.1.1
Notice applicable to EVMs not FCC-Approved:
This kit is designed to allow product developers to evaluate electronic components, circuitry, or software associated with the kit
to determine whether to incorporate such items in a finished product and software developers to write software applications for
use with the end product. This kit is not a finished product and when assembled may not be resold or otherwise marketed unless
all required FCC equipment authorizations are first obtained. Operation is subject to the condition that this product not cause
harmful interference to licensed radio stations and that this product accept harmful interference. Unless the assembled kit is
designed to operate under part 15, part 18 or part 95 of this chapter, the operator of the kit must operate under the authority of
an FCC license holder or must secure an experimental authorization under part 5 of this chapter.
3.1.2
For EVMs annotated as FCC – FEDERAL COMMUNICATIONS COMMISSION Part 15 Compliant:
CAUTION
This device complies with part 15 of the FCC Rules. Operation is subject to the following two conditions: (1) This device may not
cause harmful interference, and (2) this device must accept any interference received, including interference that may cause
undesired operation.
Changes or modifications not expressly approved by the party responsible for compliance could void the user's authority to
operate the equipment.
FCC Interference Statement for Class A EVM devices
NOTE: This equipment has been tested and found to comply with the limits for a Class A digital device, pursuant to part 15 of
the FCC Rules. These limits are designed to provide reasonable protection against harmful interference when the equipment is
operated in a commercial environment. This equipment generates, uses, and can radiate radio frequency energy and, if not
installed and used in accordance with the instruction manual, may cause harmful interference to radio communications.
Operation of this equipment in a residential area is likely to cause harmful interference in which case the user will be required to
correct the interference at his own expense.
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FCC Interference Statement for Class B EVM devices
NOTE: This equipment has been tested and found to comply with the limits for a Class B digital device, pursuant to part 15 of
the FCC Rules. These limits are designed to provide reasonable protection against harmful interference in a residential
installation. This equipment generates, uses and can radiate radio frequency energy and, if not installed and used in accordance
with the instructions, may cause harmful interference to radio communications. However, there is no guarantee that interference
will not occur in a particular installation. If this equipment does cause harmful interference to radio or television reception, which
can be determined by turning the equipment off and on, the user is encouraged to try to correct the interference by one or more
of the following measures:
•
•
•
•
Reorient or relocate the receiving antenna.
Increase the separation between the equipment and receiver.
Connect the equipment into an outlet on a circuit different from that to which the receiver is connected.
Consult the dealer or an experienced radio/TV technician for help.
3.2 Canada
3.2.1
For EVMs issued with an Industry Canada Certificate of Conformance to RSS-210
Concerning EVMs Including Radio Transmitters:
This device complies with Industry Canada license-exempt RSS standard(s). Operation is subject to the following two conditions:
(1) this device may not cause interference, and (2) this device must accept any interference, including interference that may
cause undesired operation of the device.
Concernant les EVMs avec appareils radio:
Le présent appareil est conforme aux CNR d'Industrie Canada applicables aux appareils radio exempts de licence. L'exploitation
est autorisée aux deux conditions suivantes: (1) l'appareil ne doit pas produire de brouillage, et (2) l'utilisateur de l'appareil doit
accepter tout brouillage radioélectrique subi, même si le brouillage est susceptible d'en compromettre le fonctionnement.
Concerning EVMs Including Detachable Antennas:
Under Industry Canada regulations, this radio transmitter may only operate using an antenna of a type and maximum (or lesser)
gain approved for the transmitter by Industry Canada. To reduce potential radio interference to other users, the antenna type
and its gain should be so chosen that the equivalent isotropically radiated power (e.i.r.p.) is not more than that necessary for
successful communication. This radio transmitter has been approved by Industry Canada to operate with the antenna types
listed in the user guide with the maximum permissible gain and required antenna impedance for each antenna type indicated.
Antenna types not included in this list, having a gain greater than the maximum gain indicated for that type, are strictly prohibited
for use with this device.
Concernant les EVMs avec antennes détachables
Conformément à la réglementation d'Industrie Canada, le présent émetteur radio peut fonctionner avec une antenne d'un type et
d'un gain maximal (ou inférieur) approuvé pour l'émetteur par Industrie Canada. Dans le but de réduire les risques de brouillage
radioélectrique à l'intention des autres utilisateurs, il faut choisir le type d'antenne et son gain de sorte que la puissance isotrope
rayonnée équivalente (p.i.r.e.) ne dépasse pas l'intensité nécessaire à l'établissement d'une communication satisfaisante. Le
présent émetteur radio a été approuvé par Industrie Canada pour fonctionner avec les types d'antenne énumérés dans le
manuel d’usage et ayant un gain admissible maximal et l'impédance requise pour chaque type d'antenne. Les types d'antenne
non inclus dans cette liste, ou dont le gain est supérieur au gain maximal indiqué, sont strictement interdits pour l'exploitation de
l'émetteur
3.3 Japan
3.3.1
Notice for EVMs delivered in Japan: Please see http://www.tij.co.jp/lsds/ti_ja/general/eStore/notice_01.page 日本国内に
輸入される評価用キット、ボードについては、次のところをご覧ください。
http://www.tij.co.jp/lsds/ti_ja/general/eStore/notice_01.page
3.3.2
Notice for Users of EVMs Considered “Radio Frequency Products” in Japan: EVMs entering Japan may not be certified
by TI as conforming to Technical Regulations of Radio Law of Japan.
If User uses EVMs in Japan, not certified to Technical Regulations of Radio Law of Japan, User is required by Radio Law of
Japan to follow the instructions below with respect to EVMs:
1.
2.
3.
Use EVMs in a shielded room or any other test facility as defined in the notification #173 issued by Ministry of Internal
Affairs and Communications on March 28, 2006, based on Sub-section 1.1 of Article 6 of the Ministry’s Rule for
Enforcement of Radio Law of Japan,
Use EVMs only after User obtains the license of Test Radio Station as provided in Radio Law of Japan with respect to
EVMs, or
Use of EVMs only after User obtains the Technical Regulations Conformity Certification as provided in Radio Law of Japan
with respect to EVMs. Also, do not transfer EVMs, unless User gives the same notice above to the transferee. Please note
that if User does not follow the instructions above, User will be subject to penalties of Radio Law of Japan.
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【無線電波を送信する製品の開発キットをお使いになる際の注意事項】 開発キットの中には技術基準適合証明を受けて
いないものがあります。 技術適合証明を受けていないもののご使用に際しては、電波法遵守のため、以下のいずれかの
措置を取っていただく必要がありますのでご注意ください。
1.
2.
3.
電波法施行規則第6条第1項第1号に基づく平成18年3月28日総務省告示第173号で定められた電波暗室等の試験設備でご使用
いただく。
実験局の免許を取得後ご使用いただく。
技術基準適合証明を取得後ご使用いただく。
なお、本製品は、上記の「ご使用にあたっての注意」を譲渡先、移転先に通知しない限り、譲渡、移転できないものとします。
上記を遵守頂けない場合は、電波法の罰則が適用される可能性があることをご留意ください。 日本テキサス・イ
ンスツルメンツ株式会社
東京都新宿区西新宿６丁目２４番１号
西新宿三井ビル
3.3.3
Notice for EVMs for Power Line Communication: Please see http://www.tij.co.jp/lsds/ti_ja/general/eStore/notice_02.page
電力線搬送波通信についての開発キットをお使いになる際の注意事項については、次のところをご覧くださ
い。http://www.tij.co.jp/lsds/ti_ja/general/eStore/notice_02.page
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4
EVM Use Restrictions and Warnings:
4.1 EVMS ARE NOT FOR USE IN FUNCTIONAL SAFETY AND/OR SAFETY CRITICAL EVALUATIONS, INCLUDING BUT NOT
LIMITED TO EVALUATIONS OF LIFE SUPPORT APPLICATIONS.
4.2 User must read and apply the user guide and other available documentation provided by TI regarding the EVM prior to handling
or using the EVM, including without limitation any warning or restriction notices. The notices contain important safety information
related to, for example, temperatures and voltages.
4.3 Safety-Related Warnings and Restrictions:
4.3.1
User shall operate the EVM within TI’s recommended specifications and environmental considerations stated in the user
guide, other available documentation provided by TI, and any other applicable requirements and employ reasonable and
customary safeguards. Exceeding the specified performance ratings and specifications (including but not limited to input
and output voltage, current, power, and environmental ranges) for the EVM may cause personal injury or death, or
property damage. If there are questions concerning performance ratings and specifications, User should contact a TI
field representative prior to connecting interface electronics including input power and intended loads. Any loads applied
outside of the specified output range may also result in unintended and/or inaccurate operation and/or possible
permanent damage to the EVM and/or interface electronics. Please consult the EVM user guide prior to connecting any
load to the EVM output. If there is uncertainty as to the load specification, please contact a TI field representative.
During normal operation, even with the inputs and outputs kept within the specified allowable ranges, some circuit
components may have elevated case temperatures. These components include but are not limited to linear regulators,
switching transistors, pass transistors, current sense resistors, and heat sinks, which can be identified using the
information in the associated documentation. When working with the EVM, please be aware that the EVM may become
very warm.
4.3.2
EVMs are intended solely for use by technically qualified, professional electronics experts who are familiar with the
dangers and application risks associated with handling electrical mechanical components, systems, and subsystems.
User assumes all responsibility and liability for proper and safe handling and use of the EVM by User or its employees,
affiliates, contractors or designees. User assumes all responsibility and liability to ensure that any interfaces (electronic
and/or mechanical) between the EVM and any human body are designed with suitable isolation and means to safely
limit accessible leakage currents to minimize the risk of electrical shock hazard. User assumes all responsibility and
liability for any improper or unsafe handling or use of the EVM by User or its employees, affiliates, contractors or
designees.
4.4 User assumes all responsibility and liability to determine whether the EVM is subject to any applicable international, federal,
state, or local laws and regulations related to User’s handling and use of the EVM and, if applicable, User assumes all
responsibility and liability for compliance in all respects with such laws and regulations. User assumes all responsibility and
liability for proper disposal and recycling of the EVM consistent with all applicable international, federal, state, and local
requirements.
5.
Accuracy of Information: To the extent TI provides information on the availability and function of EVMs, TI attempts to be as accurate
as possible. However, TI does not warrant the accuracy of EVM descriptions, EVM availability or other information on its websites as
accurate, complete, reliable, current, or error-free.
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6.
Disclaimers:
6.1 EXCEPT AS SET FORTH ABOVE, EVMS AND ANY WRITTEN DESIGN MATERIALS PROVIDED WITH THE EVM (AND THE
DESIGN OF THE EVM ITSELF) ARE PROVIDED "AS IS" AND "WITH ALL FAULTS." TI DISCLAIMS ALL OTHER
WARRANTIES, EXPRESS OR IMPLIED, REGARDING SUCH ITEMS, INCLUDING BUT NOT LIMITED TO ANY IMPLIED
WARRANTIES OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE OR NON-INFRINGEMENT OF ANY
THIRD PARTY PATENTS, COPYRIGHTS, TRADE SECRETS OR OTHER INTELLECTUAL PROPERTY RIGHTS.
6.2 EXCEPT FOR THE LIMITED RIGHT TO USE THE EVM SET FORTH HEREIN, NOTHING IN THESE TERMS AND
CONDITIONS SHALL BE CONSTRUED AS GRANTING OR CONFERRING ANY RIGHTS BY LICENSE, PATENT, OR ANY
OTHER INDUSTRIAL OR INTELLECTUAL PROPERTY RIGHT OF TI, ITS SUPPLIERS/LICENSORS OR ANY OTHER THIRD
PARTY, TO USE THE EVM IN ANY FINISHED END-USER OR READY-TO-USE FINAL PRODUCT, OR FOR ANY
INVENTION, DISCOVERY OR IMPROVEMENT MADE, CONCEIVED OR ACQUIRED PRIOR TO OR AFTER DELIVERY OF
THE EVM.
7.
USER'S INDEMNITY OBLIGATIONS AND REPRESENTATIONS. USER WILL DEFEND, INDEMNIFY AND HOLD TI, ITS
LICENSORS AND THEIR REPRESENTATIVES HARMLESS FROM AND AGAINST ANY AND ALL CLAIMS, DAMAGES, LOSSES,
EXPENSES, COSTS AND LIABILITIES (COLLECTIVELY, "CLAIMS") ARISING OUT OF OR IN CONNECTION WITH ANY
HANDLING OR USE OF THE EVM THAT IS NOT IN ACCORDANCE WITH THESE TERMS AND CONDITIONS. THIS OBLIGATION
SHALL APPLY WHETHER CLAIMS ARISE UNDER STATUTE, REGULATION, OR THE LAW OF TORT, CONTRACT OR ANY
OTHER LEGAL THEORY, AND EVEN IF THE EVM FAILS TO PERFORM AS DESCRIBED OR EXPECTED.
8.
Limitations on Damages and Liability:
8.1 General Limitations. IN NO EVENT SHALL TI BE LIABLE FOR ANY SPECIAL, COLLATERAL, INDIRECT, PUNITIVE,
INCIDENTAL, CONSEQUENTIAL, OR EXEMPLARY DAMAGES IN CONNECTION WITH OR ARISING OUT OF THESE
TERMS ANDCONDITIONS OR THE USE OF THE EVMS PROVIDED HEREUNDER, REGARDLESS OF WHETHER TI HAS
BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGES. EXCLUDED DAMAGES INCLUDE, BUT ARE NOT LIMITED
TO, COST OF REMOVAL OR REINSTALLATION, ANCILLARY COSTS TO THE PROCUREMENT OF SUBSTITUTE GOODS
OR SERVICES, RETESTING, OUTSIDE COMPUTER TIME, LABOR COSTS, LOSS OF GOODWILL, LOSS OF PROFITS,
LOSS OF SAVINGS, LOSS OF USE, LOSS OF DATA, OR BUSINESS INTERRUPTION. NO CLAIM, SUIT OR ACTION SHALL
BE BROUGHT AGAINST TI MORE THAN ONE YEAR AFTER THE RELATED CAUSE OF ACTION HAS OCCURRED.
8.2 Specific Limitations. IN NO EVENT SHALL TI'S AGGREGATE LIABILITY FROM ANY WARRANTY OR OTHER OBLIGATION
ARISING OUT OF OR IN CONNECTION WITH THESE TERMS AND CONDITIONS, OR ANY USE OF ANY TI EVM
PROVIDED HEREUNDER, EXCEED THE TOTAL AMOUNT PAID TO TI FOR THE PARTICULAR UNITS SOLD UNDER
THESE TERMS AND CONDITIONS WITH RESPECT TO WHICH LOSSES OR DAMAGES ARE CLAIMED. THE EXISTENCE
OF MORE THAN ONE CLAIM AGAINST THE PARTICULAR UNITS SOLD TO USER UNDER THESE TERMS AND
CONDITIONS SHALL NOT ENLARGE OR EXTEND THIS LIMIT.
9.
Return Policy. Except as otherwise provided, TI does not offer any refunds, returns, or exchanges. Furthermore, no return of EVM(s)
will be accepted if the package has been opened and no return of the EVM(s) will be accepted if they are damaged or otherwise not in
a resalable condition. If User feels it has been incorrectly charged for the EVM(s) it ordered or that delivery violates the applicable
order, User should contact TI. All refunds will be made in full within thirty (30) working days from the return of the components(s),
excluding any postage or packaging costs.
10. Governing Law: These terms and conditions shall be governed by and interpreted in accordance with the laws of the State of Texas,
without reference to conflict-of-laws principles. User agrees that non-exclusive jurisdiction for any dispute arising out of or relating to
these terms and conditions lies within courts located in the State of Texas and consents to venue in Dallas County, Texas.
Notwithstanding the foregoing, any judgment may be enforced in any United States or foreign court, and TI may seek injunctive relief
in any United States or foreign court.
Mailing Address: Texas Instruments, Post Office Box 655303, Dallas, Texas 75265
Copyright © 2015, Texas Instruments Incorporated
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changes to its semiconductor products and services per JESD46, latest issue, and to discontinue any product or service per JESD48, latest
issue. Buyers should obtain the latest relevant information before placing orders and should verify that such information is current and
complete. All semiconductor products (also referred to herein as “components”) are sold subject to TI’s terms and conditions of sale
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TI warrants performance of its components to the specifications applicable at the time of sale, in accordance with the warranty in TI’s terms
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to support this warranty. Except where mandated by applicable law, testing of all parameters of each component is not necessarily
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TI assumes no liability for applications assistance or the design of Buyers’ products. Buyers are responsible for their products and
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TI does not warrant or represent that any license, either express or implied, is granted under any patent right, copyright, mask work right, or
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No TI components are authorized for use in FDA Class III (or similar life-critical medical equipment) unless authorized officers of the parties
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