Texas Instruments INA1620EVM User Manual Download Page 22

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

Summary of Contents for INA1620EVM

Page 1: ...CB layout schematic and bill of materials BOM of the INA1620EVM Contents 1 Introduction 3 2 Performance Specification Summary 3 3 Modifications 3 3 1 Gain 4 3 2 Cutoff Frequency 5 3 3 Phase Shift 5 3...

Page 2: ...oad 9 7 THD N vs Amplitude for a 16 Load 10 8 FFT of Left Channel With a 32 Load 10 9 FFT of Right Channel With a 32 Load 11 10 FFT of Left Channel With a 16 Load 11 11 FFT of Right Channel With a 16...

Page 3: ...1 kHz VIN 1 VRMS Load 32 measurement bandwidth 90 kHz 107 8 dB THD N vs at 1 kHz VIN 1 VRMS Load 16 measurement bandwidth 90 kHz 107 1 dB Second Harmonic Left Channel VIN 1 VRMS Load 32 Fin 1 kHz 129...

Page 4: ...n Equation 1 and Equation 2 display the transfer function of the circuit shown in Figure 1 1 2 When using the internal thin film resistors all resistance values in Equation 1 and Equation 2 are 1 k Th...

Page 5: ...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...

Page 6: ...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 te...

Page 7: ...i com Test Setup and Results 7 SBOU205 March 2018 Submit Documentation Feedback Copyright 2018 Texas Instruments Incorporated INA1620EVM Audio Amplifier Evaluation Module Figure 3 Power Supply Connect...

Page 8: ...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...

Page 9: ...D 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 im...

Page 10: ...t 2018 Texas Instruments Incorporated INA1620EVM Audio Amplifier Evaluation Module Figure 7 shows the THD N vs Amplitude for a 16 load Figure 7 THD N vs Amplitude for a 16 Load 4 7 Fast Fourier Transf...

Page 11: ...st Setup and Results 11 SBOU205 March 2018 Submit Documentation Feedback Copyright 2018 Texas Instruments Incorporated INA1620EVM Audio Amplifier Evaluation Module Figure 9 shows an FFT of the right c...

Page 12: ...INA1620EVM Audio Amplifier Evaluation Module Figure 11 shows an FFT of the right channel with a 16 load The second harmonic was measured to be 120 68 dBV Figure 11 FFT of Right Channel With a 16 Load...

Page 13: ...rs 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 w...

Page 14: ...Board Layout www ti com 14 SBOU205 March 2018 Submit Documentation Feedback Copyright 2018 Texas Instruments Incorporated INA1620EVM Audio Amplifier Evaluation Module Figure 13 Top Layer PCB Layout...

Page 15: ...www ti com Board Layout 15 SBOU205 March 2018 Submit Documentation Feedback Copyright 2018 Texas Instruments Incorporated INA1620EVM Audio Amplifier Evaluation Module Figure 14 Bottom Layer PCB Layout...

Page 16: ...n Feedback Copyright 2018 Texas Instruments Incorporated INA1620EVM Audio Amplifier Evaluation Module 6 Schematic Bill of Materials and Reference This section contains the schematics the bill of mater...

Page 17: ...hematic Bill of Materials and Reference 17 SBOU205 March 2018 Submit Documentation Feedback Copyright 2018 Texas Instruments Incorporated INA1620EVM Audio Amplifier Evaluation Module Figure 15 INA1620...

Page 18: ...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 S...

Page 19: ...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...

Page 20: ...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 great...

Page 21: ...t 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...

Page 22: ...OST 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...

Page 23: ...TI Resource NO OTHER LICENSE EXPRESS OR IMPLIED BY ESTOPPEL OR OTHERWISE TO ANY OTHER TI INTELLECTUAL PROPERTY RIGHT AND NO LICENSE TO ANY TECHNOLOGY OR INTELLECTUAL PROPERTY RIGHT OF TI OR ANY THIRD...

Page 24: ...Mouser Electronics Authorized Distributor Click to View Pricing Inventory Delivery Lifecycle Information Texas Instruments INA1620EVM...

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