August 2005
Rev A
National Semiconductor
Evaluation Board User's Manual
ADC121S101 / ADC101S101 / ADC081S101
ADC121S051 / ADC101S051 / ADC081S051
ADC121S021 / ADC101S021 / ADC081S021:
50 ksps to 1 Msps, 12-, 10- and 8-Bit
Analog-to-Digital Converters
VDD Set
TP1
J6
GND
VR1
GND TP5
U2
TP7
VDD_IN
TP2
GND
J3
J7
U1
TP8
VIN
ADC121S101
ADC101S101
ADC081S101
TP4
GND
J5
TP3
GND
Y1
J2
CLK
National Semiconductor
ADC121S101 Evaluation Board
Rev. 1
© 2003, 2004, 2005 National Semiconductor Corporation.
1
http://www.national.com
[ Blank Page ]
2
http://www.national.com
Table of Contents
1.0 Introduction .......................................................................................................................................... 4
2.0 Board Assembly ................................................................................................................................... 4
3.0 Quick Start ........................................................................................................................................... 4
4.0 Functional Description.......................................................................................................................... 5
4.1 Input (signal conditioning) circuitry......................................................................................... 5
4.2 The ADC reference ................................................................................................................ 5
4.3 ADC clock circuit.................................................................................................................... 5
4.5 Digital Data Output................................................................................................................. 5
4.6 Power Supply Connections .................................................................................................... 5
4.7 Power Requirements ............................................................................................................. 6
4.8 Analog Inputs ......................................................................................................................... 6
5.0 Installing and Using the ADC121S101 Evaluation Board..................................................................... 6
5.1 Software Installation............................................................................................................... 6
5.2 Setting up the ADC121S101 Evaluation Board...................................................................... 6
5.2.1 Board Set-up......................................................................................................... 6
5.2.2 Quick Check of Analog Functions ........................................................................ 6
5.2.3 Quick Check of Software and Computer Interface Operation............................... 6
5.2.4 Getting Consistent Readings ................................................................................ 7
5.2.5 Troubleshooting .................................................................................................... 7
6.0 Evaluation Board Specifications........................................................................................................... 7
7.0 Hardware Schematic ............................................................................................................................ 8
8.0 ADC121S101 Evaluation Board Bill of Materials.................................................................................. 9
A1 Summary Tables of Test Points and Connectors ................................................................................. 10
3
http://www.national.com
1.0 Introduction
The ADCxx1Sxx1 Design Kit (consisting of the
ADCxx1S101 / ADCxx1S051 / ADCxx1S021 evaluation board,
where "xx" can be "08", "10" or "12", and WaveVision4
hardware) is designed to ease evaluation and design-in
of
National
Semiconductor’s
ADC121S101
/
ADC101S101 and ADC081S101, one megasample-persecond 12-, 10- and 8-bit analog-to-digital converters, the
ADC121S051, ADC101S051 and ADC081S051, 200 to
500 kilosample-per-second 12-, 10- and 8-bit analog-todigital converters and the ADC121S021, ADC101S021
and ADC081S021, 50 to 200 kilosample-per-second 12-,
10- and 8-bit analog-to-digital converters.
This evaluation board allows you to evaluate product
performance in one of two ways. This evaluation board
can be operated either in standalone mode with a logic
analyzer, or with a personal computer and WaveVision4
hardware and software.
Reference to the ADC121S101 in this document is meant
to refer to all of the above devices, unless otherwise
stated or implied.
For operation with a computer system, this evaluation
board should be coupled to a WaveVision data capture
board (National part number WAVEVSN BRD 4.0). The
WaveVision4 software that controls that board operates
on Microsoft Windows. The analog signal presented to
the ADC121S101 is captured by the WaveVision4 data
capture board, and displayed on the computer screen as
a dynamic waveform, FFT, and histogram. The software
also computes and displays SNR, SINAD, THD, SFDR,
and ENOB.
Important Note: The evaluation board for all of these
products look identical. The actual device placed on your
evaluation board can be verified by looking at its top
mark. The devices have the following top marks:
Device
Top Mark
ADC121S101
X01C
ADC101S101
X02C
ADC081S101
X03C
ADC121S051
X13C
ADC101S051
X14C
ADC081S051
X15C
ADC121S021
X07C
ADC101S021
X08C
ADC081S021
X09C
The signal at the Analog Input to the board is digitized
and is available at FutureBus connector J5. (See Figure 1
the board schematic of Figure 2).
The board input is provided at BNC J3. Jumper header
J4 allow this input to be either a.c. or d.c. coupled to the
ADC121S101. Provision is made to adjust the
ADC121S101 supply voltage with potentiometers VR1.
2.0 Board Assembly
The ADC121S101 Evaluation Board comes fully
assembled and ready to use. Refer to the Bill of Materials
for a description of components, to Figure 1 for major
component placement and to Figure 2 for the Evaluation
Board schematic.
3.0 Quick Start
Refer to Figure 1 for locations of test points and major
components.
1.
Connect the evaluation board to the Capture Board
(order number WAVEVSN BRD 4.0). See the
Capture Board Manual for operation of that board.
2.
Connect a clean power supply to the terminals of
connector J6. Adjust power supply to a voltage of
±5.5V to ±5.7V before connecting it to the board.
This voltage will be the maximum supply voltage for
the ADC121S101. Connect the power to the board.
3.
Connect a voltmeter to TP6 and use VR1 to set the
ADC121S101 analog supply voltage for the desired
value between +2.7V and +5.0V.
4.
Apply a 10 MHz clock source to J2. Be sure the
signal excursion goes to ground and to at least 70%
of the ADC121S101 supply voltage.
5.
Put a jumper between pins 2 and 3 of J4. Connect a
signal whose peak-to-peak amplitude is the same as
the power supply voltage setting.
6.
Connect a USB cable between the WaveVision
Capture Board and the PC.
7.
Run the WaveVision 4 software and click on
Settings, then click on Capture. Under "Board Type"
select "WaveVision 4.0 (USB)".
8.
Under "Communication" press the "Test" button. If
you get a "Communication Failed" message, test all
connections and be sure the power supply to the
boards is turned on.
9.
Be sure that the appropriate clock speed is reported.
If not, check to be sure the clock signal has
adequate amplitude and repeat step 8.
10. Click "Accept" then gather data by pressing F1 on
the keyboard. Perform an FFT on the data by
clicking on the FFT tab. Note that an appropriate
filter should be used at the signal input to the board.
11. See the WaveVision Capture Board Manual for
complete data gathering instructions.
4
http://www.national.com
VDD Set
TP1
J6
GND
VR1
GND TP5
U2
TP7
VDD_IN
TP2
GND
J3
J7
U1
TP8
VIN
ADC121S101
ADC101S101
ADC081S101
TP4
GND
J5
TP3
GND
Y1
J2
CLK
National Semiconductor
ADC121S101 Evaluation Board
Rev. 1
Figure 1. The Evaluation Board
4.0 Functional Description
The ADC121S101 Evaluation Board component locations
are shown in Figure 1. The board schematic is shown in
Figure 2.
4.1 Input (signal conditioning) circuitry
The input signal to be digitized should be applied to BNC
connector J3 through an appropriate filter. This 50 Ohm
input is intended to accept a low-noise sine wave signal
of peak-to-peak amplitude up to the power supply level.
To accurately evaluate the ADC121S101 dynamic
performance, the input test signal should be a single
frequency passed through a high-quality band pass filter
as described in Section 5.0.
The input signal may be either a.c. or d.c. coupled to the
ADC121S101 with the setting of the jumper on J4. See
schematic Figure 2.
4.2 The ADC reference
The reference voltage for the ADC121S101 is the device
supply voltage. Therefore, adjusting this voltage will
change the full scale range of the ADC121S101 . Since
the operational supply voltage range of the ADC121S101
is 2.7V to 5.25V, this is also the range of the reference
voltage.
4.3 ADC clock circuit
The clock signal applied to the ADC can comes from
BNC J2 or from an on-board oscillator at position Y1 or
Y2. Y1 is for a through-hole TTL oscillator, while Y2 is for
a surface mounted TTL oscillator. Only one oscillator
should be mounted at a time and either an oscillator or
an external generator should be connected. When using
an external clock source, be sure that there is a 51 Ohm
resistor at position R2 near BNC J2. Resistor R2 should
be removed if the on-board oscillator is used. These
boards are shipped without R2 populated.
4.5 Digital Data Output.
The digital output data from the ADC121S101 is available
at Header J7 for connection to a logic analyzer. Data is
transferred over FutureBus J5 for use with the
WaveVision data capture board.
4.6 Power Supply Connections
Power to this board is supplied through power connector
J6. The only Voltage needed for the ADC121S101
evaluation board is a single +2.7V to +5.6V supply.
5
http://www.national.com
When using the ADC121S101 Evaluation Board with the
WaveVision Capture Board, the 5V logic power supply for
that Capture board is passed to the ADC121S101
evaluation board through pins A1, B1, A2 and B2 of J10.
However, that voltage is not connected to the power
header J6. If it is desired to use the +5V from the
WaveVision Capture board for the ADC121S101
evaluation board, it is necessary to add a wire from A1,
B1, A2 or B2 of J5 to pin 1 of J6.
4.7 Power Requirements
Voltage and current requirements for the ADC121S101
Evaluation Board is
•
•
Pin 1 of J6: +2.7V to 5.7V at 5 mA
Pin 2 of J6: Ground
4.8 Analog Inputs
The ADC121S101 evaluation board input channel is
composed of termination components and a user choice
of a.c. or d.c. signal coupling to the ADC121S101. Short
together pins 2 and 3 of J4 to a.c. couple the input signal.
Short pins 1 and 2 on J4 to present your input signal
directly to the ADC121S101.
Caution: Be sure that the input signals to the
ADC121S101 do not go more negative than -0.3V or
more than 0.3V above the ADC121S101 power
supply.
5.0 Installing and Using the ADC121S101
Evaluation Board
The evaluation board requires a power supply as
described in Section 4.7. An appropriate signal generator
(such as the HP3325B, HP8662A or the Tektronix
AWG2000 series) with 50 Ohm source impedance should
be connected to the Analog Input BNC J3. A bandpass
filter should be inserted between the generator output
and the input to the ADC121S101 evaluatoin board when
evaluating sinusoidal signals to be sure there are no
unwanted frequencies (harmonics and noise) presented
to the ADC. A USB cable must be connected between
the WaveVision Capture Board and the host computer.
See the WaveVision Capture Board User'
s Guide for
details.
5.1 Software Installation
The WaveVision software provided requires about 6
Megabytes of hard drive space, include the Java files,
and will run under Windows. See the WaveVision
Capture Board Manual for WaveVision software
installation instructions.
5.2 Setting up the ADC121S101 Evaluation Board
This evaluation package was designed to be easy and
simple to use, and to provide a quick and simple way to
evaluate the ADC121S101. The procedures given here
will help you to properly set up the board.
5.2.1 Board Set-up
Refer to Figure 1 for locations of the major components
on the board.
1.
Connect The ADC121S101 evaluation board to
WaveVision Capture Board, WAVEVSN BRD 4.0.
2. Connect the desired jumper to J4. See Section 4.8.
3. Connect power to the board per requirements of
paragraph 4.7.
4. Connect an USB cable between the Capture Board
and a USB port on your computer.
5. Apply power to both the WaveVision Capture Board
and the ADC121S101 evaluation board.
6. Connect an appropriate test signal source to BNC
connector J3 of the ADC121S101 evaluation board
through an appropriate filter.
5.2.2 Quick Check of Analog Functions
Refer to Figure 1 for locations of major components on
the board. If at any time the expected response is not
obtained, see section 5.2.5 on Troubleshooting.
1.
2.
3.
Perform steps 1 through 6 of Section 5.2.1.
Adjust VR1 for the desired ADC121S101 supply
voltage (and reference voltage) at TP6.
Scope TP8 to be sure the input signal is present.
This completes the testing of the analog portion of the
evaluation board.
5.2.3 Quick Check of Software and Computer
Interface Operation
1.
2.
3.
4.
5.
6.
7.
8.
Perform steps 1 through 3 of Paragraph 5.2.2,
above.
Adjust the signal source at Analog Input J3 for a
peak-to-peak signal amplitude at TP8 very slightly
below the value of the d.c. voltage at TP6.
Be sure there is an interconnecting cable between
the Capture Board and your computer USB port.
RUN the WaveVision4 program.
Acquire data by pressing the F1 key. Data transfer
can take a few seconds.
When transfer is complete, the data window should
show many sine waves. The display may show a
nearly solid area of red, which is O.K.
With the mouse, you may click on the magnifying
glass, then and drag (top left to bottom right) to
select a small portion of the displayed waveform for
better examination.
Click on the FFT tab to compute the FFT and
display a frequency domain plot.
The FFT data will provide a measurement of SINAD,
SNR, THD SFDR and ENOB, easing the performance
verification of the ADC121S101.
6
http://www.national.com
Note: Be sure to use a band pass filter between the
signal source and this board for accurate dynamic
performance measurement.
5.2.4 Getting Consistent Readings
Artifacts can result when we perform an FFT on a
digitized waveform, producing inconsistent results when
testing repeatedly. The presence of these artifacts means
that the ADC under test may perform better than our
measurements would indicate. Windowing is a common
method of improving FFT results of finite data.
We can eliminate the need for windowing and get more
consistent results if we observe the proper ratios between
the input and sampling frequencies, forcing the data to
cleanly "wrap around" itself, providing coherent sampling.
This eliminates the distortion that would otherwise be
present in an FFT and greatly increases its spectral
resolution. This, in turn, allows us to more accurately
evaluate the spectral response of the A/D converter.
When we do this, however, we must be sure that the
input signal has high spectral purity and stability and that
the sampling clock signal is extremely stable with
minimal jitter. Coherent sampling of a periodic waveform
occurs when an integer number of cycles exists in the
sample window. The relationship between the number of
cycles sampled (CY), the number of samples taken (SS),
the signal input frequency (fin) and the sample rate (fs),
for coherent sampling, is
CY fin
SS = fs
CY, the number of cycles in the data record, and SS, the
number of samples taken, can not have a common
divisor that would yield a whole number for both. The
easiest way to ensure this is to be sure that CY is a prime
integer and SS, the number of samples in the record, is a
even number. For evaluation with an FFT (as opposed to
a DFT), SS must be a power of 2 integer.
Further, fin (signal input frequency) and fs (sampling rate)
should be locked to each other to ensure the proper ratio.
Windowing (an FFT Option under WaveVision) should
not be used for coherent sampling.
5.2.5 Troubleshooting
If nothing happens when F1 is pressed, Select Settings,
then Capture Board Settings and look at top for "Board
Properties" If you see "No WaveVision hardware is
present", be sure that the WaveVision Capture Board is
connected to an USB port and has power, that the
ADC121S101 evaluation board has power, and that the
ADC121S101 evaluation board is properly connected to
and properly seated with the WaveVision Capture Board.
If there is no output from the ADC121S101, perform the
following:
•
Be sure that a shorting jumper is appropriately
placed on J4.
•
Be sure that the proper voltage and polarity is
present at Power Connector J6.
•
Check to see that the ADC121S101 input signal
does not go below ground or above the
ADC121S101 supply voltage.
•
Be sure there is a clock signal is present at
ADC121S101 pin 5.
If the PC displayed waveform appears to be noisy, or if
the FFT plot shows nothing but noise with no apparent
signal:
•
•
•
Be sure a shorting jumper is appropriately on J4.
Check to see that the ADC121S101 input signal
does not go below ground or above the
ADC121S101 analog supply voltage.
Be sure that a minimum of +2.7V is at J6 connector
pin 1.
6.0 Evaluation Board Specifications
Board Size:
Power Requirements:
Clock Frequency Range:
Analog Input
Nominal Voltage:
Impedance:
7
2.8" x 2.8" (7.2 cm x 7.2 cm)
+ 2.9V to 5.7 @ 5 mA
1 MHz to 20 MHz
2.7 VP-P to 5.25 VP-P
50 Ohms
http://www.national.com
Header for logic
analyzer connection
4
4,
32
+
( 5
$
$(
5$
$
4
4
I )
4 * 4 * 4 *
) ) )
' 4
4
)
+,
5
+, (
4)
$'
'
))
2 #
"
6
%
(J
+, *
!
# "
2
$
3
Q FF
L
))
# "
G
G
4)
5
4)
5
$
$2
))
+, *
3'
Power connector for applying
external power supplies
#"
)4 *
%
#
%& " !
!
G
5 # " !
G
# )
" !
,
; :. 0/. - . 00 // @ ?? > = < <
:CD A / @ ? > = < <
B - =E - @ 0 / > . = < - <
( '
J )
,
3 *
< 0/; :. 0
,
; :. 0/.
)
F
5
,
H
)
# "
!
,
(
10./.-
)
, *
G
)
!
,
!
(
)
5 !
,
53 G
8
- K - K
.
GG -K GG -K
GG . GG .
L -K
LL - K L
LL . LL .
K -K
-
. .
M -K M -K
M
M M . MM .
M N K N -K
N- N
NN . NN .
-K -K
. .
7 7 -K
-K 7
7 7 . 77 .
7 O O -K
-K O
OO O . OO .
P - K
PP - K P
PP . PP .
- K - K
. .
G - K GG - K
G G . GG .
G L - K L - K
L
LL L . LL .
- K - K
. .
M - K
MM - K M
MM . MM .
N - K NN - K
N N . NN .
N - K
- K
. .
7 - K
77 - K 7
77 . 77 .
O - K
OO - K O
OO . OO .
P G -K PP GG -K
P P G G . PP GG .
P G G -K G -K
G
G G G . G G .
K G G -K
GG GG - G G
GG GG . GG GG .
L G -K
LL G - K L G
L G G . LL GG .
L G K G -K
GG - G
GG . GG .
.
4)
3( ,++ *
"
5 (
'
))
4
) *
# F
" ! $
56
5
4 5
)
7 . 4 . 4 45 9
8
$
5 ( ' 2
*
F
$
Figure 2. ADC121S101 / ADC101S101 / ADC081S101 Evaluation Board Schematic
7.0 Hardware Schematic
%'
*
J
#
3
http://www.national.com
8.0 ADC121S101 Evaluation Board Bill of Materials
Item QTY Reference
1
C1
Part
Not Populated
Source
n/a
2
5
C2, C4, C6, C8, C9
0.1 uF
Type 0805
3
1
C3
68 uF, 6.3V or 10V
Type 7343
4
1
C5
10 uF, 6.3V or 10V
Type 3216
5
1
C7
1 uF, 6.3V or 10V
Type 3216
6
-
J1
Not Populated
n/a
7
2
J2, J3
BNC Connector
DigiKey # ARF1177-ND
8
1
J4
2-Pin Post Header
DigiKey # A19350-ND
9
1
J5
FUTUREBUS Connector
AMP/Tyco 536501-1
10
1
J6
2-Pin Terminal Block
DigiKey # ED1609-ND
11
1
J7
5-Pin Post Header
DigiKey # WM6505-ND
12
1
L1
100 uH
DigiKey # 445-1155-1-ND or
TDK # NLC322522T-331K
13
1
Q1
MMBT3904
Various
14
-
R2
Not Populated
n/a
15
3
R1, R3, R8
51.1, 1%
Type 0805
16
3
R4, R5
1K, 5%
Type 0805
17
2
R6, R9
10K, 1%
Type 0805
18
1
R7
100
Type 0805
19
1
TP1, TP2, TP3, TP4, TP5, TP6, TP7, TP8
TEST POINTS
DigiKey # S1012-36-ND
U1
ADC121S101CIMF or
ADC101S101CIMF or
ADC081S101CIMF or
ADC121S051CIMF or
ADC101S051CIMF or
ADC081S051CIMF
ADC121S021CIMF or
ADC101S021CIMF or
ADC081S021CIMF
National Semiconductor
Various
20
1
21
1
U2
24C02N
22
1
VR1
1K Potentiometer
DigiKey # 3386F-103-ND
Pletronics # SM7745HY-4.0M
Pletronics # SM7745HY-10.0M
Pletronics # SM7745HY-20.0M
23
1
Y1 - Through-Hole Oscillator
4MHz Oscillator (021 suffix)
10MHz Oscillator (051 suffix)
20MHz Oscillator (101 suffix)
24
1
Y2 - SMD Oscillator- Optional - not populated
Not Populated (Surface Mount)
n/a
25
1
Oscillator Socket
For Y1
DigiKey # A400-ND
26
1
Shorting Jumper
for J4
DigiKey #S9601-ND
9
http://www.national.com
APPENDIX
A1 Summary Tables of Test Points and Connectors
Test Points on the ADC121S101 Evaluation Board
TP 1
Ground
TP 2
Ground
TP 3
Ground
TP 4
Ground
TP 5
Ground
TP 6
ADC supply voltage
TP 7
Board input voltage
TP 8
Signal input to ADC
J6 Connector - Power Supply Connections
J6-1
J6-2
+2.9V to +5.7V
GND
Positive Power Supply
Power Supply Ground
J7 - Logic Analyzer Header
1
2
3
4
5
Ground
ADC Serial Data Output
ADC Serial Data Input
ADC Chip Select (active low)
ADC serial Clock
J1 - Clock Enable
none
1-2
Clock at Y1 or Y2 is disabled if oscillator has enable input
Clock at Y1 or Y2 is enabled
J10 - FutureBus Connector
A1, B1, A2, B2
D2
B3
C3
D3
A4
D17
D18
D19
D20
A23, B23, A24, B24
All Others
+5V from WaveVision4 Capture Board
ADC Serial Clock
EEPROM SDA (Data)
EEPROM SCL (Clock)
EEPROM Power
ADC Data Output
SCLK SEND
ADC SCLK
ADC CS#
ADC Data Input
+3.3V from WaveVision4 Capture Board
Ground
10
http://www.national.com
[ Blank Page ]
11
http://www.national.com
These Evaluation Boards are intended for product evaluation purposes only and are not intended for resale to end
consumers, is not authorized for such use and is not designed for compliance with European EMC Directive 89/336/EEC.
National does not assume any responsibility for use of any circuitry or software supplied or described. No circuit patent
licenses are implied.
LIFE SUPPORT POLICY
NATIONAL'
S PRODUCTS ARE NOT AUTHORIZED FOR USE AS CRITICAL COMPONENTS IN LIFE SUPPORT
DEVICES OR SYSTEMS WITHOUT THE EXPRESS WRITTEN APPROVAL OF THE PRESIDENT OF NATIONAL
SEMICONDUCTOR CORPORATION. As used herein:
1. Life support devices or systems are devices or
systems which, (a) are intended for surgical implant
into the body, or (b) support or sustain life, and
whose failure to perform, when properly used in
accordance with instructions for use provided in the
labeling, can be reasonably expected to result in a
significant injury to the user.
National Semiconductor Corporation
Americas
Tel:
1-800-272-9959
Fax: 1-800-737-7018
Email: support@nsc.com
2. A critical component is any component in a life
support device or system whose failure to perform
can be reasonably expected to cause the failure of
the life support device or system, or to affect its
safety or effectiveness.
National Semiconductor Europe
Fax: +49 (0) 1 80-530 85 86
Email: europe.support@nsc.com
Deutsch Tel: +49 (0) 1 80-530 85 85
English Tel: +49 (0) 1 80 532 78 32
Français Tel: +49 (0) 1 80 532 93 58
Italiano Tel: +49 (0) 1 80 534 16 8
National Semiconductor
Asia Pacific Customer
Response Group
Tel: 65-2544466
Fax: 65-2504466
Email: sea.support@nsc.com
National Semiconductor
Japan Ltd.
Tel: 81-3-5620-6175
Fax: 81-3-5620-6179
www.national.com
National does not assume any responsibility for any circuitry described, no circuit patent licenses are implied and National reserves the right
at any time without notice to change said circuitry and specifications.
12
http://www.national.com
IMPORTANT NOTICE
Texas Instruments Incorporated and its subsidiaries (TI) reserve the right to make corrections, modifications, enhancements, improvements,
and other changes to its products and services at any time and to discontinue any product or service without notice. Customers should
obtain the latest relevant information before placing orders and should verify that such information is current and complete. All products are
sold subject to TI’s terms and conditions of sale supplied at the time of order acknowledgment.
TI warrants performance of its hardware products to the specifications applicable at the time of sale in accordance with TI’s standard
warranty. Testing and other quality control techniques are used to the extent TI deems necessary to support this warranty. Except where
mandated by government requirements, testing of all parameters of each product is not necessarily performed.
TI assumes no liability for applications assistance or customer product design. Customers are responsible for their products and
applications using TI components. To minimize the risks associated with customer products and applications, customers should provide
adequate design and operating safeguards.
TI does not warrant or represent that any license, either express or implied, is granted under any TI patent right, copyright, mask work right,
or other TI intellectual property right relating to any combination, machine, or process in which TI products or services are used. Information
published by TI regarding third-party products or services does not constitute a license from TI to use such products or services or a
warranty or endorsement thereof. Use of such information may require a license from a third party under the patents or other intellectual
property of the third party, or a license from TI under the patents or other intellectual property of TI.
Reproduction of TI information in TI data books or data sheets is permissible only if reproduction is without alteration and is accompanied
by all associated warranties, conditions, limitations, and notices. Reproduction of this information with alteration is an unfair and deceptive
business practice. TI is not responsible or liable for such altered documentation. Information of third parties may be subject to additional
restrictions.
Resale of TI products or services with statements different from or beyond the parameters stated by TI for that product or service voids all
express and any implied warranties for the associated TI product or service and is an unfair and deceptive business practice. TI is not
responsible or liable for any such statements.
TI products are not authorized for use in safety-critical applications (such as life support) where a failure of the TI product would reasonably
be expected to cause severe personal injury or death, unless officers of the parties have executed an agreement specifically governing
such use. Buyers represent that they have all necessary expertise in the safety and regulatory ramifications of their applications, and
acknowledge and agree that they are solely responsible for all legal, regulatory and safety-related requirements concerning their products
and any use of TI products in such safety-critical applications, notwithstanding any applications-related information or support that may be
provided by TI. Further, Buyers must fully indemnify TI and its representatives against any damages arising out of the use of TI products in
such safety-critical applications.
TI products are neither designed nor intended for use in military/aerospace applications or environments unless the TI products are
specifically designated by TI as military-grade or "enhanced plastic." Only products designated by TI as military-grade meet military
specifications. Buyers acknowledge and agree that any such use of TI products which TI has not designated as military-grade is solely at
the Buyer's risk, and that they are solely responsible for compliance with all legal and regulatory requirements in connection with such use.
TI products are neither designed nor intended for use in automotive applications or environments unless the specific TI products are
designated by TI as compliant with ISO/TS 16949 requirements. Buyers acknowledge and agree that, if they use any non-designated
products in automotive applications, TI will not be responsible for any failure to meet such requirements.
Following are URLs where you can obtain information on other Texas Instruments products and application solutions:
Products
Applications
Audio
www.ti.com/audio
Automotive and Transportation www.ti.com/automotive
Amplifiers
amplifier.ti.com
Communications and Telecom www.ti.com/communications
Data Converters
dataconverter.ti.com
Computers and Peripherals
www.ti.com/computers
DLP® Products
www.dlp.com
Consumer Electronics
www.ti.com/consumer-apps
DSP
dsp.ti.com
Energy and Lighting
www.ti.com/energy
Clocks and Timers
www.ti.com/clocks
Industrial
www.ti.com/industrial
Interface
interface.ti.com
Medical
www.ti.com/medical
Logic
logic.ti.com
Security
www.ti.com/security
Power Mgmt
power.ti.com
Space, Avionics and Defense
www.ti.com/space-avionics-defense
Microcontrollers
microcontroller.ti.com
Video and Imaging
www.ti.com/video
RFID
www.ti-rfid.com
OMAP Mobile Processors
www.ti.com/omap
Wireless Connectivity
www.ti.com/wirelessconnectivity
TI E2E Community Home Page
e2e.ti.com
Mailing Address: Texas Instruments, Post Office Box 655303, Dallas, Texas 75265
Copyright © 2012, Texas Instruments Incorporated
工商网监
湘ICP备2023018690号
