User's Guide
SBOU205 – March 2018
INA1620EVM Audio Amplifier Evaluation Module
This user's guide contains information for the INA1620 device as well as support documentation for the
INA1620 evaluation module (EVM). Included are the performance specifications, set-up procedure,
modifications, measured data, printed circuit board (PCB) layout, schematic, and bill of materials (BOM) of
the INA1620EVM.
1
2
3
4
5
6
Contents
Introduction ................................................................................................................... 3
Performance Specification Summary ..................................................................................... 3
Modifications.................................................................................................................. 3
3.1
Gain................................................................................................................... 4
3.2
Cutoff Frequency.................................................................................................... 5
3.3
Phase Shift .......................................................................................................... 5
3.4
Alternative Uses for Internal Resistors ........................................................................... 5
Test Setup and Results ..................................................................................................... 6
4.1
Power Supply Connections ........................................................................................ 6
4.2
Input Connections .................................................................................................. 8
4.3
Output Connections ................................................................................................ 8
4.4
Enable ............................................................................................................... 8
4.5
THD+N vs. Frequency ............................................................................................. 8
4.6
THD+N vs. Amplitude .............................................................................................. 9
4.7
Fast Fourier Transforms .......................................................................................... 10
4.8
CMRR vs. Frequency ............................................................................................. 12
Board Layout ................................................................................................................ 13
5.1
Layout ............................................................................................................... 13
Schematic, Bill of Materials, and Reference ............................................................................ 16
6.1
Schematic .......................................................................................................... 16
6.2
Bill of Materials .................................................................................................... 18
6.3
Reference .......................................................................................................... 18
List of Figures
1
INA1620EVM Schematic Using Internal Resistors ...................................................................... 3
2
INA1620EVM Schematic Using External Resistors ..................................................................... 4
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3
Power Supply Connections ................................................................................................. 7
4
THD+N vs Frequency for a 32-Ω Load ................................................................................... 8
5
THD+N vs Frequency for a 16-Ω Load ................................................................................... 9
6
THD+N vs Amplitude for a 32-Ω Load .................................................................................... 9
7
THD+N vs Amplitude for a 16-Ω Load
10
8
FFT of Left Channel With a 32-Ω Load
10
9
10
11
12
13
14
15
..................................................................................
.................................................................................
FFT of Right Channel With a 32-Ω Load ................................................................................
FFT of Left Channel With a 16-Ω Load .................................................................................
FFT of Right Channel With a 16-Ω Load ................................................................................
CMRR vs Frequency With No Load .....................................................................................
Top Layer PCB Layout ....................................................................................................
Bottom Layer PCB Layout ................................................................................................
INA1620EVM Schematic ..................................................................................................
11
11
12
12
14
15
17
List of Tables
2
.......................................................................
1
INA1620EVM Measured Performance Summary
2
Jumper and Resistor Substitutions for Internal Resistor Reuse ....................................................... 5
3
INA1620EVM Bill of Materials ............................................................................................ 18
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Introduction
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1
Introduction
The INA1620 is a high-performance, bipolar-input audio operational amplifier with integrated thin-film
resistors. For a full list of electrical characteristics of the INA1620, see the INA1620 product data sheet.
2
Performance Specification Summary
A summary of the INA1620EVM performance specifications is provided in Table 1. Specifications are
given for a supply voltage of Vs = ±15 V and at an ambient temperature of 25°C, unless otherwise noted.
Table 1. INA1620EVM Measured Performance Summary
3
SPECIFICATION
TEST CONDITIONS
MEASURED
PERFORMANCE
Total Harmonic Distortion Plus Noise
(THD+N) at 1 kHz
VIN = 1 VRMS, Load = 32 Ω, measurement bandwidth =
90 kHz
–107.8 dB
THD+N vs at 1 kHz
VIN = 1 VRMS, Load = 16 Ω, measurement bandwidth =
90 kHz
–107.1 dB
Second Harmonic – Left Channel
VIN = 1 VRMS, Load = 32 Ω, Fin = 1 kHz
–129.62 dBV
Second Harmonic – Right Channel
VIN = 1 VRMS, Load = 32 Ω, Fin = 1 kHz
–125.53 dBV
Second Harmonic – Left Channel
VIN = 1 VRMS, Load = 16 Ω, Fin = 1 kHz
–122.91 dBV
Second Harmonic – Right Channel
VIN = 1 VRMS, Load = 16 Ω, Fin = 1 kHz
–121.36 dBV
CMRR - Left
VIN = 1 VRMS, FIN = 1 kHz, no load
–83 dB
CMRR - Right
VIN = 1 VRMS, FIN = 1 kHz, no load
–84 dB
Modifications
This EVM is designed to provide access to the features of and measure the performance of the INA1620.
The phase shift and cutoff frequency of this EVM can be modified by changing external capacitors. The
INA1620EVM allows external resistors to be used instead of the internal thin-film resistors INA1620. This
may be useful for applications where the excellent matching of the INA162 resistors is desired for another
use. The schematic of the INA1620EVM configured to use internal resistors is displayed in Figure 1. For a
full schematic of the INA1620EVM, see Figure 15.
C1 (C4)
R2A (R3A)
R2C (R3C)
IN±
Right Channel Input
(Left Channel Input)
±
Right Channel Output
(Left Channel Output)
R1A (R4A)
+
IN+
C2
(C3)
R1C
(R4C)
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Figure 1. INA1620EVM Schematic Using Internal Resistors
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Modifications
3.1
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Gain
Equation 1 and Equation 2 display the transfer function of the circuit shown in Figure 1.
VRightChannelOutput
VLeftChannelOutput
§ R1C
¨
© R1C R1A
· § R2C
¸ u ¨1
¹ © R2A
§ R2C
¨
© R2A
·
¸ u IN
¹
§
· § R3C ·
R4C
¨
¸ u ¨1
¸ u IN
© R4C R4A ¹ © R3 A ¹
·
¸ u IN
¹
(1)
§ R3C ·
¨
¸ u IN
© R3A ¹
(2)
When using the internal thin-film resistors, all resistance values in Equation 1 and Equation 2 are 1 kΩ.
This simplifies Equation 1 and Equation 2 into Equation 3.
VLeftChannelOutput VRightChannelOutput IN IN
(3)
The INA1620EVM also allows the use of external resistors to set the amplifier gain. Note that external
resistors must be used if the thin-film resistors in the INA1620 are to be used for other purposes.
Equation 4 and Equation 5 display the transfer function for the circuit shown in Figure 2.
C1 (C4)
R1 (R19)
R2 (R20)
IN±
Right Channel Input
(Left Channel Input)
±
R7 (R13)
+
IN+
C2
(C3)
Right Channel Output
(Left Channel Output)
R6
(R15)
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Figure 2. INA1620EVM Schematic Using External Resistors
VRightChannelOutput
VLeftChannelOutput
§ R7 · § R2 ·
¨
¸ u ¨1
¸ u IN
R1 ¹
© R6 R7 ¹ ©
§ R15
· § R20 ·
¨
¸ u ¨1
¸ u IN
© R13 R15 ¹ © R19 ¹
§ R2 ·
¨
¸ u IN
© R1 ¹
§ R20 ·
¨
¸ u IN
© R19 ¹
(4)
(5)
For best CMRR performance, it is desirable to balance the gain from the IN+ and IN– components by
setting R1 = R7, R13 = R19, R2 = R6, and R20 = R5. For a typical headphone amplifier application, both
the left and right channels will be identical, so R1 = R7 = R13 = R19 and R2 = R6 = R15 = R20. In this
case, Equation 4 and Equation 5 simplify to Equation 6.
§R ·
VLeftChannelOutput VRightChannelOutput ¨ 2 ¸ u IN IN
© R1 ¹
(6)
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Modifications
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3.2
Cutoff Frequency
This EVM provides the ability to filter the output of the INA1620. The cutoff frequency of the filter can be
calculated using Equation 7 and Equation 8.
1
g c right
2S u R2 u C1
given
•
gc
R1 = R7, R2 = R6, and C1 = C2
(7)
1
2S u R15 u C3
left
given
•
R13 = R19, R15 = R20, and C3 = C4
(8)
If the internal resistors of the INA1620 are used instead, both R2 and R15 above are 1-kΩ resistors.
3.3
Phase Shift
The phase shift, Θ, is calculated using Equation 9.
§ g ·
tan 1 ¨ ¸
© gc ¹
4
where
•
•
3.4
ƒ is the maximum frequency of interest within the audio band
ƒc is the cutoff frequency discussed in Section 3.2
(9)
Alternative Uses for Internal Resistors
For most headphone amplifier applications, the internal thin-film resistors in the INA1620 are used as
shown in Figure 1. However, these resistors may be used for other purposes, if desired. The
INA1620EVM supports disconnecting each of the four matched resistor pairs for external use, as
described below.
Table 2. Jumper and Resistor Substitutions for Internal Resistor Reuse
INA1620 INTERNAL RESISTOR PAIR
0-Ω RESISTORS TO REMOVE
1-kΩ RESISTORS TO INSTALL
R1 (terminals R1A, R1B, R1C)
R8, R9, R10
R6, R7
R2 (terminals R2A, R2B, R2C)
R3, R4, R5
R1, R2
R3 (terminals R3A, R3B, R3C)
R16, R17, R18
R19, R20
R4 (terminals R4A, R4B, R4C)
R11, R12, R14
R13, R15
Table 2 shows the 0-Ω resistors that must be removed and 1-kΩ resistors that must be added in order to
use each internal resistor pair in the INA1620 separately. When the appropriate changes have been
made, the internal resistor pairs may be accessed on the corresponding connections on the EVM labelled
U1R1 A, B, and C, U1R2 A, B, and C, etc, as shown in Figure 13.
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Test Setup and Results
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Test Setup and Results
This section describes how to properly connect, set up, and use the INA1620EVM. This section also
includes measured data of the INA1620EVM to display typical performance of the INA1620EVM.
Measurements include:
• THD+N vs Frequency for a 32- and 16-Ω load
• THD+N vs Amplitude for a 32- and 16-Ω load
• Fast-Fourier Transform (FFT) for a 32- and 16-Ω load
• CMRR vs. Frequency with no output load
The THD+N vs Frequency, THD+N vs Amplitude, FFT, and CMRR vs Frequency measurements were
taken using an Audio Precision APx555. All measurements were taken using ±15-V supplies at an
ambient temperature of 25 °C, unless otherwise noted.
4.1
Power Supply Connections
Power-supply connections to the INA1620EVM are made through screw terminal connector J5 at the top
of the EVM. The positive power supply connection is marked Vcc, the negative supply connection Vee, and
the ground connection GND. To connect power to the EVM, insert wires into each terminal, then tighten
the screws to make the connection. Figure 3 shows the proper way to connect power to the INA1620EVM.
For minimum and maximum supply voltages of the INA1620EVM, see the INA1620 product data sheet.
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Figure 3. Power Supply Connections
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Test Setup and Results
4.2
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Input Connections
Signals for the left channel and right channel inputs are applied through connectors J3 and J1,
respectively. Connect wires to J1 and J3 to provide an input signal from an audio source such as an audio
analyzer or audio digital-to-analog converter (DAC). The positive input connects to the pin labeled +, the
negative input to the pin labeled –, and the ground connection connects to the center pin, marked GND.
4.3
Output Connections
Output connections are provided through the use of the audio jack, J2, and two test points labelled Left
Out and Right Out. The audio jack provides a way to connect headphones or a resistive load to the output
of the INA1620. The test points provide a connection to measure the performance of the two channels
with an audio analyzer, distortion analyzer, or other test equipment.
4.4
Enable
Jumper J4 provides access to the EN pin on the INA1620. Placing a shunt across J4 disables the
INA1620 by grounding the EN pin. When the EN pin is grounded, a current flows through R3 to ground
that is larger than the shutdown current of the OPA1622. Removing the shunt across J5 enables the
INA1620 by pulling the EN pin up to the positive supply through resistor R3. Voltages up to the positive
supply can be applied to the EN pin. External sources can be applied to the enable pin by removing the
shunt and resistor R3 and connecting an external source to J4.
4.5
THD+N vs. Frequency
For all THD+N vs Frequency measurements, the input signal frequency was swept from 20 Hz to 20 kHz
and had an amplitude of 1 VRMS on the output of the INA1620 with the measurement bandwidth of the
Audio Precision set to 90 kHz. A small variation in the THD+N performance between amplifier channels is
normal. Figure 4 shows the THD+N vs Frequency for a 32-Ω load.
-80
Left Channel
Right Channel
-85
Frequency (Hz)
-90
-95
-100
-105
-110
100
1k
THD+N Ratio (dB)
10k
Figure 4. THD+N vs Frequency for a 32-Ω Load
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Figure 5 shows the THD+N vs Frequency for a 16-Ω load.
-80
Left Channel
Right Channel
THD+N Ratio (dB)
-85
-90
-95
-100
-105
-110
100
1k
Frequency (Hz)
10k
Figure 5. THD+N vs Frequency for a 16-Ω Load
4.6
THD+N vs. Amplitude
For all THD+N vs Amplitude measurements, the output amplitude was swept from 10 mVRMS to 3 VRMS at a
frequency of 1 kHz. The measurement bandwidth of the Audio Precision was set to 22 kHz. Note that
driving low impedance loads from power supply voltages larger than ±5 V may cause the output of the
INA1620 to clip at a lower output amplitude than what is shown in the measurements because the
increased power dissipation in the amplifier will trigger the thermal protection circuitry. See the INA1620
product datasheet Application and Implementation section for information on calculating power dissipation.
Figure 6 shows the THD+N vs Amplitude for a 32-Ω load.
0
Left Channel
Right Channel
THD+N Ratio (dB)
-20
-40
-60
-80
-100
-120
0.01
0.1
1
3
Input Level (Vrms)
Figure 6. THD+N vs Amplitude for a 32-Ω Load
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Test Setup and Results
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Figure 7 shows the THD+N vs Amplitude for a 16-Ω load.
0
Left Channel
Right Channel
THD+N Ratio (dB)
-20
-40
-60
-80
-100
-120
0.01
0.1
1
3
Input Level (Vrms)
Figure 7. THD+N vs Amplitude for a 16-Ω Load
4.7
Fast Fourier Transforms
For all FFT measurements, a frequency of 1 kHz and amplitude of 1 VRMS on the output was used. The 1VRMS fundamental corresponds to 0 dBV in all FFT measurements. Figure 8 shows an FFT of the left
channel with a 32-Ω load. The second harmonic was measured to be –125.45 dBV.
0
Left Channel
-20
Amplitude (dBV)
-40
-60
-80
-100
-120
-140
-160
0
2000
4000
6000
8000
10000
12000
Frequency (Hz)
14000
16000
18000
20000
Figure 8. FFT of Left Channel With a 32-Ω Load
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Figure 9 shows an FFT of the right channel with a 32-Ω load. The second harmonic was measured to be
–126.90 dBV.
0
Right Channel
-20
Amplitude (dBV)
-40
-60
-80
-100
-120
-140
-160
0
2000
4000
6000
8000
10000
12000
Frequency (Hz)
14000
16000
18000
20000
Figure 9. FFT of Right Channel With a 32-Ω Load
Figure 10 shows an FFT of the left channel with a 16-Ω load. The second harmonic was measured to be
–120.25 dBV.
0
Left Channel
-20
Amplitude (dBV)
-40
-60
-80
-100
-120
-140
-160
0
2000
4000
6000
8000
10000
12000
Frequency (Hz)
14000
16000
18000
20000
Figure 10. FFT of Left Channel With a 16-Ω Load
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Test Setup and Results
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Figure 11 shows an FFT of the right channel with a 16-Ω load. The second harmonic was measured to be
–120.68 dBV.
0
Right Channel
-20
Amplitude (dBV)
-40
-60
-80
-100
-120
-140
-160
0
2000
4000
6000
8000
10000
12000
Frequency (Hz)
14000
16000
18000
20000
Figure 11. FFT of Right Channel With a 16-Ω Load
4.8
CMRR vs. Frequency
For all CMRR vs Frequency measurements, the Audio Precision was configured to provide a commonmode input signal into the INA1620EVM. This common-mode signal was configured to an amplitude of 1
VRMS and swept from 20 Hz to 200 kHz. Figure 12 shows CMRR vs Frequency with no load on the
INA1620 output.
-50
Left Channel
Right Channel
CMRR(dB)
-60
-70
-80
-90
20
100
1000
Frequency (Hz)
10000
100000
200000
Figure 12. CMRR vs Frequency With No Load
12
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Board Layout
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5
Board Layout
This section provides a description of the INA1620EVM board layout and layer illustrations.
5.1
Layout
The board layout for the INA1620EVM is shown in Figure 13 and Figure 14. The top layer consists of all
signal traces and is poured with a solid ground plane. Traces for both the left and right channel were kept
as balanced as possible to eliminate any impedance mismatch due to trace impedance. Power supply
decoupling capacitors C6 and C8 were placed as close as possible to the supply pins of the INA1620. The
placement of the remaining passive components was kept as close and symmetrical as possible to
minimize loop areas, which can couple noise and interference into the INA1620. This via stitching also
helps shunt ground currents from the top ground pour, which is interrupted by traces and components,
down to the bottom ground pour, which has much less interruption. The bottom layer was used to route
only one signal, the Vcc connection to the EN pin pullup resistor. Note that due to the size of the copper
pour for the thermal pad on the bottom layer, the thermal performance specified in the INA1620 datasheet
may not be met on the INA1620EVM. Refer to the application report, PowerPAD™ Thermally Enhanced
Package for more information.
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Board Layout
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Figure 13. Top Layer PCB Layout
14
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Board Layout
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Figure 14. Bottom Layer PCB Layout
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Schematic, Bill of Materials, and Reference
6
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Schematic, Bill of Materials, and Reference
This section contains the schematics, the bill of materials, and a list of reference documents.
6.1
Schematic
Figure 15 illustrates the EVM schematics.
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Schematic, Bill of Materials, and Reference
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Figure 15. INA1620EVM Schematic
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Schematic, Bill of Materials, and Reference
6.2
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Bill of Materials
Table 3 lists the EVM BOM.
Table 3. INA1620EVM Bill of Materials
Designator
6.3
Value
Description
Package Reference
Part Number
Manufacturer
AMPS047
Any
0805
08055A101JAT2A
AVX
CAP, CERM, 10 uF, 35 V, +/- 10%, X7R,
1206
1206
GMK316AB7106KL
Taiyo Yuden
CAP, CERM, 0.1 uF, 25 V, +/- 5%, X7R,
0603
0603
C0603C104J3RACTU
Kemet
4
Bumpon, Cylindrical, 0.312 X 0.200, Black
Black Bumpon
SJ61A1
3M
J1, J3
2
Header, 100mil, 3x1, Gold, TH
3x1 Header
TSW-103-07-G-S
Samtec
J2
1
Audio Jack, 3.5mm, Stereo, R/A, SMT
Audio Jack SMD
SJ-3523-SMT
CUI Inc.
J4
1
Header, 100mil, 2x1, Gold, TH
Header, 100mil, 2x1,
TH
HTSW-102-07-G-S
Samtec
Terminal Block, 3.5mm Pitch, 3x1, TH
10.5x8.2x6.5mm
ED555/3DS
On-Shore Technology
RES, 0, 5%, 0.333 W, AEC-Q200 Grade 0,
0805
0805
CRCW08050000Z0EAHP
Vishay-Dale
1
C1, C2, C3,
C4
4
100pF
CAP, CERM, 100 pF, 50 V, +/- 5%,
C0G/NP0, 0805
C5, C7
2
10uF
C6, C8
2
0.1uF
H1, H2, H3,
H4
Printed Circuit Board
J5
1
R3, R4, R5,
R8, R9, R10,
R11, R12,
R14, R16,
R17, R18
12
0
R21
1
10.0k
RES, 10.0 k, 0.5%, 0.1 W, 0805
0805
RR1220P-103-D
Susumu Co Ltd
SH-J4
1
Shunt, 100mil, Gold plated, Black
Shunt 2 pos. 100 mil
881545-2
TE Connectivity
TP1, TP2,
TP3, TP4
4
Test Point, Miniature, SMT
Test Point, Miniature,
SMT
5019
Keystone
U1
1
High-Fidelity Audio Operational Amplifier
With Integrated Thin-Film Resistors,
RTW0024H (WQFN-24)
RTW0024H
INA1620RTWT
Texas Instruments
Reference
•
•
18
QTY
!PCB1
INA1620 Hi-Fidelity Audio Op Amplifier With Integrated Thin-Film Resistors
PowerPAD™ Thermally Enhanced Package
INA1620EVM Audio Amplifier Evaluation Module
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STANDARD TERMS FOR EVALUATION MODULES
1.
Delivery: TI delivers TI evaluation boards, kits, or modules, including any accompanying demonstration software, components, and/or
documentation which may be provided together or separately (collectively, an “EVM” or “EVMs”) to the User (“User”) in accordance
with the terms set forth herein. User's acceptance of the EVM is expressly subject to the following terms.
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 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 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 a nonconforming EVM if (a) the nonconformity was 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, (b) the nonconformity resulted from User's design, specifications
or instructions for such EVMs or improper system design, or (c) User has not paid on time. Testing and other quality control
techniques are used to the extent TI deems necessary. TI does not test all parameters of each EVM.
User's claims against TI under this Section 2 are void if User fails to notify TI of any apparent defects in the EVMs within ten (10)
business days after delivery, or of any hidden defects with ten (10) business days after the defect has been detected.
2.3 TI's sole liability shall be at its option to repair or replace EVMs that fail to conform to the warranty set forth above, 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:
FCC NOTICE: 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.
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 or RSS-247
Concerning EVMs Including Radio Transmitters:
This device complies with Industry Canada license-exempt RSSs. 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 to follow the
instructions set forth by Radio Law of Japan, which includes, but is not limited to, the instructions below with respect to EVMs
(which for the avoidance of doubt are stated strictly for convenience and should be verified by User):
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.
【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
3.4 European Union
3.4.1
For EVMs subject to EU Directive 2014/30/EU (Electromagnetic Compatibility Directive):
This is a class A product intended for use in environments other than domestic environments that are connected to a
low-voltage power-supply network that supplies buildings used for domestic purposes. In a domestic environment this
product may cause radio interference in which case the user may be required to take adequate measures.
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.
6.
Disclaimers:
6.1 EXCEPT AS SET FORTH ABOVE, EVMS AND ANY MATERIALS PROVIDED WITH THE EVM (INCLUDING, BUT NOT
LIMITED TO, REFERENCE DESIGNS 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 EPIDEMIC FAILURE WARRANTY OR 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 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, REGARDLESS OF WHEN MADE, CONCEIVED OR ACQUIRED.
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. 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 OR THE USE OF THE EVMS , 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 TWELVE (12) MONTHS AFTER THE EVENT THAT GAVE RISE TO THE CAUSE OF ACTION HAS
OCCURRED.
8.2 Specific Limitations. IN NO EVENT SHALL TI'S AGGREGATE LIABILITY FROM ANY USE OF AN EVM PROVIDED
HEREUNDER, INCLUDING FROM ANY WARRANTY, INDEMITY OR OTHER OBLIGATION ARISING OUT OF OR IN
CONNECTION WITH THESE TERMS, , EXCEED THE TOTAL AMOUNT PAID TO TI BY USER FOR THE PARTICULAR
EVM(S) AT ISSUE DURING THE PRIOR TWELVE (12) MONTHS WITH RESPECT TO WHICH LOSSES OR DAMAGES ARE
CLAIMED. THE EXISTENCE OF MORE THAN ONE CLAIM 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 © 2018, Texas Instruments Incorporated
IMPORTANT NOTICE FOR TI DESIGN INFORMATION AND RESOURCES
Texas Instruments Incorporated (‘TI”) technical, application or other design advice, services or information, including, but not limited to,
reference designs and materials relating to evaluation modules, (collectively, “TI Resources”) are intended to assist designers who are
developing applications that incorporate TI products; by downloading, accessing or using any particular TI Resource in any way, you
(individually or, if you are acting on behalf of a company, your company) agree to use it solely for this purpose and subject to the terms of
this Notice.
TI’s provision of TI Resources does not expand or otherwise alter TI’s applicable published warranties or warranty disclaimers for TI
products, and no additional obligations or liabilities arise from TI providing such TI Resources. TI reserves the right to make corrections,
enhancements, improvements and other changes to its TI Resources.
You understand and agree that you remain responsible for using your independent analysis, evaluation and judgment in designing your
applications and that you have full and exclusive responsibility to assure the safety of your applications and compliance of your applications
(and of all TI products used in or for your applications) with all applicable regulations, laws and other applicable requirements. You
represent that, with respect to your applications, you have all the necessary expertise to create and implement safeguards that (1)
anticipate dangerous consequences of failures, (2) monitor failures and their consequences, and (3) lessen the likelihood of failures that
might cause harm and take appropriate actions. You agree that prior to using or distributing any applications that include TI products, you
will thoroughly test such applications and the functionality of such TI products as used in such applications. TI has not conducted any
testing other than that specifically described in the published documentation for a particular TI Resource.
You are authorized to use, copy and modify any individual TI Resource only in connection with the development of applications that include
the TI product(s) identified in such TI Resource. NO OTHER LICENSE, EXPRESS OR IMPLIED, BY ESTOPPEL OR OTHERWISE TO
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RIGHT OF TI OR ANY THIRD PARTY IS GRANTED HEREIN, including but not limited to any patent right, copyright, mask work right, or
other intellectual property right relating to any combination, machine, or process in which TI products or services are used. Information
regarding or referencing third-party products or services does not constitute a license to use such products or services, or a warranty or
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third party, or a license from TI under the patents or other intellectual property of TI.
TI RESOURCES ARE PROVIDED “AS IS” AND WITH ALL FAULTS. TI DISCLAIMS ALL OTHER WARRANTIES OR
REPRESENTATIONS, EXPRESS OR IMPLIED, REGARDING TI RESOURCES OR USE THEREOF, INCLUDING BUT NOT LIMITED TO
ACCURACY OR COMPLETENESS, TITLE, ANY EPIDEMIC FAILURE WARRANTY AND ANY IMPLIED WARRANTIES OF
MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE, AND NON-INFRINGEMENT OF ANY THIRD PARTY INTELLECTUAL
PROPERTY RIGHTS.
TI SHALL NOT BE LIABLE FOR AND SHALL NOT DEFEND OR INDEMNIFY YOU AGAINST ANY CLAIM, INCLUDING BUT NOT
LIMITED TO ANY INFRINGEMENT CLAIM THAT RELATES TO OR IS BASED ON ANY COMBINATION OF PRODUCTS EVEN IF
DESCRIBED IN TI RESOURCES OR OTHERWISE. IN NO EVENT SHALL TI BE LIABLE FOR ANY ACTUAL, DIRECT, SPECIAL,
COLLATERAL, INDIRECT, PUNITIVE, INCIDENTAL, CONSEQUENTIAL OR EXEMPLARY DAMAGES IN CONNECTION WITH OR
ARISING OUT OF TI RESOURCES OR USE THEREOF, AND REGARDLESS OF WHETHER TI HAS BEEN ADVISED OF THE
POSSIBILITY OF SUCH DAMAGES.
You agree to fully indemnify TI and its representatives against any damages, costs, losses, and/or liabilities arising out of your noncompliance with the terms and provisions of this Notice.
This Notice applies to TI Resources. Additional terms apply to the use and purchase of certain types of materials, TI products and services.
These include; without limitation, TI’s standard terms for semiconductor products http://www.ti.com/sc/docs/stdterms.htm), evaluation
modules, and samples (http://www.ti.com/sc/docs/sampterms.htm).
Mailing Address: Texas Instruments, Post Office Box 655303, Dallas, Texas 75265
Copyright © 2018, Texas Instruments Incorporated
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