Texas Instruments SoundPlus INA1651EVM User Manual Download Page 16

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.

Summary of Contents for SoundPlus INA1651EVM

Page 1: ...651EVM SoundPlus High Common Mode Rejection Line Receiver Evaluation Module This user s guide contains information for the INA1651 as well as support documentation for the INA1651 evaluation module EVM Included are the performance specifications set up procedure modifications measured data printed circuit board PCB layout schematic and bill of materials of the INA1651EVM Figure 1 INA1651 SoundPlus...

Page 2: ...2 Bill of Materials 15 6 3 Reference 15 List of Figures 1 INA1651 SoundPlus Evaluation Module EVM 1 2 Simplified INA1651EVM Schematic 3 3 RC Charging Rate 5 4 J8 Connection for Single Supply Operation 7 5 J8 Connection for Dual Supply Operation 8 6 Common Mode Rejection Ratio CMRR Measurement 15 V Supplies 1 VRMS Input 90 kHz MBW 9 7 THD N vs Amplitude Measurement 15 V Supplies 1 kHz Output 22 kHz...

Page 3: ...mmary A summary of the INA1651EVM performance specifications is provided in Table 1 Specifications are given for a supply voltage of VS 15 V at an ambient temperature of 25 C unless otherwise noted Table 1 INA1651EVM Measured Performance Summary Specification Test Conditions Measured Performance Common Mode Rejection Ratio CMRR VIN 1 VRMS at 1 kHz 90 dB THD N at 1 kHz VIN 22 dBu 121 dB Second Harm...

Page 4: ...e the output of the INA1651 Equation 1 calculates the high pass corner frequency of input A and input B due to capacitors C7 and C9 on the input where C7 C9 RIN is the differential input impedance of the INA1651 1 Equation 2 calculates the high pass corner frequency due to capacitor C8 and resistors R2 and R3 on the output 2 Resistors R2 and R3 form a voltage divider on the output of the INA1651 a...

Page 5: ... at multiple time constants Table 2 Final Capacitor Voltage Time Constant τRC Final Capacitor Voltage 1 63 2 2 86 4 3 95 0 4 98 1 5 99 3 6 99 7 To decrease the settling time of the VMID OUT voltage the Zener diode D1 can be populated The Zener voltage of the diode should be chosen to be greater than 100 mV more than one half of the supply voltage Equation 6 calculates the recommended Zener voltage...

Page 6: ...beled as VCC the negative power supply connections are labeled as VEE and the ground connections are labeled as GND For the minimum and maximum supply voltages of the INA1651EVM refer to the INA1651 product data sheet SBOS818 4 2 Input Connections Input signals for the input are applied to the INA1651EVM through the use of the female XLR connector J1 or terminal block J3 The female XLR connector f...

Page 7: ...es the option to connect pins VREF A and COM A to ground or VMID OUT In single supply operation place a shunt in the upper position pins 2 to 3 of J8 as indicated by the red box in Figure 4 to connect VREF A and COM A pins to VMID OUT Figure 4 J8 Connection for Single Supply Operation For dual supply operation place a shunt in the lower position pins 1 to 2 of J8 as indicated by the red box in Fig...

Page 8: ...om 8 SBOU212 September 2018 Submit Documentation Feedback Copyright 2018 Texas Instruments Incorporated INA1651EVM SoundPlus High Common Mode Rejection Line Receiver Evaluation Module Figure 5 J8 Connection for Dual Supply Operation ...

Page 9: ...rms common mode signal to the input and measuring the gain of the signal at the output The frequency of the input signal was swept from 20 Hz to 90 kHz and the measurement bandwidth of the Audio Precision APx555 was set to 90 kHz Figure 6 shows a measurement of the CMRR Figure 6 Common Mode Rejection Ratio CMRR Measurement 15 V Supplies 1 VRMS Input 90 kHz MBW 4 6 THD N vs Amplitude The THD N vs A...

Page 10: ...rmed by sweeping the input signal from 20 Hz to 20 kHz with the measurement bandwidth of the Audio Precision APx555 set to 90 kHz Figure 8 shows the THD N vs Frequency measurement with an amplitude of 1 VRMS on the output of the INA1651 Note that capacitor C8 on the output of the INA1651 can increase distortion at low frequencies due to non linear effects of the capacitor Therefore capacitor C8 is...

Page 11: ...018 Texas Instruments Incorporated INA1651EVM SoundPlus High Common Mode Rejection Line Receiver Evaluation Module 4 8 Fast Fourier Transform FFT The FFT measurements were taken with a 1 kHz 10 VRMS signal on the output of the INA1651 A 10 VRMS fundamental corresponds to 0 dBc in the FFT measurement Figure 10 shows an FFT of the INA1651 output The second harmonic was measured to be 142 86 dBc Figu...

Page 12: ... the positive input IN A and negative input IN A were kept as balanced as possible to reduce the possibility of a differential voltage from developing due to trace impedance mismatch The decoupling capacitors C5 C6 C11 and C12 were positioned as close as possible to the power supply pins of the device Minimal traces were routed on the bottom layer so that a large solid ground plane could be poured...

Page 13: ...yout 13 SBOU212 September 2018 Submit Documentation Feedback Copyright 2018 Texas Instruments Incorporated INA1651EVM SoundPlus High Common Mode Rejection Line Receiver Evaluation Module Figure 12 Bottom Layer PCB Layout ...

Page 14: ...2018 Texas Instruments Incorporated INA1651EVM SoundPlus High Common Mode Rejection Line Receiver Evaluation Module 6 Schematic Bill of Materials and Reference This section contains the schematic bill of materials and references for the INA1651EVM 6 1 Schematic Figure 13 illustrates the EVM schematic Figure 13 Schematic ...

Page 15: ...stone J1 J2 J3 3 Standard Banana Jack Uninsulated 5 5mm Keystone_575 4 575 4 Keystone J4 1 Terminal Block 3 5mm Pitch 3x1 TH 10 5x8 2x6 5mm ED555 3DS On Shore Technology J5 1 Header 100mil 2x1 Tin TH Header 2 PIN 100mil Tin PEC02SAAN Sullins Connector Solutions J6 1 Receptacle 160mil 3 Position R A TH Receptacle 160mil 3 Position R A TH PQG3FRA112 Switchcraft J7 1 RCA Jack 1Pos Tin Red R A TH RCA ...

Page 16: ...y 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 warr...

Page 17: ...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 fo...

Page 18: ...ed 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 ...

Page 19: ...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 Specif...

Page 20: ...se resources are subject to change without notice TI grants you permission to use these resources only for development of an application that uses the TI products described in the resource Other reproduction and display of these resources is prohibited No license is granted to any other TI intellectual property right or to any third party intellectual property right TI disclaims responsibility for...

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