Texas Instruments PCM1840EVM Скачать руководство пользователя страница 19

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4

EVM Use Restrictions and Warnings:

4.1 EVMS ARE NOT FOR USE IN FUNCTIONAL SAFETY AND/OR SAFETY CRITICAL EVALUATIONS, INCLUDING BUT NOT

LIMITED TO EVALUATIONS OF LIFE SUPPORT APPLICATIONS.

4.2 User must read and apply the user guide and other available documentation provided by TI regarding the EVM prior to handling

or using the EVM, including without limitation any warning or restriction notices. The notices contain important safety information
related to, for example, temperatures and voltages.

4.3

Safety-Related Warnings and Restrictions:

4.3.1

User shall operate the EVM within TI’s recommended specifications and environmental considerations stated in the user
guide, other available documentation provided by TI, and any other applicable requirements and employ reasonable and
customary safeguards. Exceeding the specified performance ratings and specifications (including but not limited to input
and output voltage, current, power, and environmental ranges) for the EVM may cause personal injury or death, or
property damage. If there are questions concerning performance ratings and specifications, User should contact a TI
field representative prior to connecting interface electronics including input power and intended loads. Any loads applied
outside of the specified output range may also result in unintended and/or inaccurate operation and/or possible
permanent damage to the EVM and/or interface electronics. Please consult the EVM user guide prior to connecting any
load to the EVM output. If there is uncertainty as to the load specification, please contact a TI field representative.
During normal operation, even with the inputs and outputs kept within the specified allowable ranges, some circuit
components may have elevated case temperatures. These components include but are not limited to linear regulators,
switching transistors, pass transistors, current sense resistors, and heat sinks, which can be identified using the
information in the associated documentation. When working with the EVM, please be aware that the EVM may become
very warm.

4.3.2

EVMs are intended solely for use by technically qualified, professional electronics experts who are familiar with the
dangers and application risks associated with handling electrical mechanical components, systems, and subsystems.
User assumes all responsibility and liability for proper and safe handling and use of the EVM by User or its employees,
affiliates, contractors or designees. User assumes all responsibility and liability to ensure that any interfaces (electronic
and/or mechanical) between the EVM and any human body are designed with suitable isolation and means to safely
limit accessible leakage currents to minimize the risk of electrical shock hazard. User assumes all responsibility and
liability for any improper or unsafe handling or use of the EVM by User or its employees, affiliates, contractors or
designees.

4.4 User assumes all responsibility and liability to determine whether the EVM is subject to any applicable international, federal,

state, or local laws and regulations related to User’s handling and use of the EVM and, if applicable, User assumes all
responsibility and liability for compliance in all respects with such laws and regulations. User assumes all responsibility and
liability for proper disposal and recycling of the EVM consistent with all applicable international, federal, state, and local
requirements.

5.

Accuracy of Information:

To the extent TI provides information on the availability and function of EVMs, TI attempts to be as accurate

as possible. However, TI does not warrant the accuracy of EVM descriptions, EVM availability or other information on its websites as
accurate, complete, reliable, current, or error-free.

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.

Содержание PCM1840EVM

Страница 1: ...s recommended practices for these devices Contents 1 Introduction 3 2 Power Supply 3 3 Hardware Configuration 3 3 1 PCM1840EVM Inputs 5 4 EVM Overview 6 5 Layer Plots 8 6 Schematic and Bill of Materials 11 6 1 PCM1840EVM Schematic 11 6 2 PCM1840EVM Bill of Materials 13 7 Related Documentation 15 List of Figures 1 PCM1840EVM Input Architecture 5 2 PCM1840EVM Connection for Line Input Application 5 ...

Страница 2: ...nts Incorporated PCM1840 Evaluation Module List of Tables 1 PCM1840 EVM Headers and Jumpers 3 2 PCM1840 Hardware Controllable Settings 4 3 PCM1840EVM Bill of Materials 13 Trademarks Burr Brown is a trademark of Texas Instruments All other trademarks are the property of their respective owners ...

Страница 3: ...that will hold the ADC in shutdown until both AVDD and IOVDD have reached their respective threshold voltages The shutdown thresholds for the supply voltages can be adjusted as shown in Equation 1 and Equation 2 The supervisor can also be removed from the shutdown logic by depopulating R5 For more information on the reset supervisor see the TPS37xx Dual Channel Low Power High Accuracy Voltage Dete...

Страница 4: ... Functional Mode 0 0 Linear phase filter 0 1 MCLK 256 Fs 1 0 Low latency filter 1 1 MCLK 512 Fs MD1 Modes MD1 MSZ 0 Slave 1 Master MD1 Functional Mode 0 0 DRE disabled 0 1 MCLK input 1 0 DRE enabled 1 1 MCLK input Audio Output Data Format FMT0 FMT1 Data Format 0 0 4 channel TDM 0 1 2 channel TDM 1 0 2 channel left justified 1 1 2 channel I2S All hardware pins are tied low by default placing the de...

Страница 5: ... frequency at approximately 63 Hz This can be adjusted by replacing the input AC coupling capacitors on the EVM if necessary Figure 1 shows the architecture of the inputs to the evaluation module The EVM supports a differential full scale input range of 2 VRMS with an AVDD of 3 3 V Figure 1 PCM1840EVM Input Architecture 3 1 1 Line Inputs For the line input configuration shown in Figure 2 the PCM18...

Страница 6: ...captured from the microphone located on the bottom left edge of the board MICBIAS is used to power the onboard microphone through J14 J15 and J16 must be installed to connect the microphone output to the ADC inputs There must not be any connections to J1 during onboard microphone use to preserve the performance of the microphone Figure 3 PCM1840EVM Connection for the Onboard Microphone Test 4 EVM ...

Страница 7: ...www ti com EVM Overview 7 SBAU345 March 2020 Submit Documentation Feedback Copyright 2020 Texas Instruments Incorporated PCM1840 Evaluation Module Figure 5 EVM Back Overview ...

Страница 8: ...Layer Plots www ti com 8 SBAU345 March 2020 Submit Documentation Feedback Copyright 2020 Texas Instruments Incorporated PCM1840 Evaluation Module 5 Layer Plots Figure 6 Top Layer ...

Страница 9: ...www ti com Layer Plots 9 SBAU345 March 2020 Submit Documentation Feedback Copyright 2020 Texas Instruments Incorporated PCM1840 Evaluation Module Figure 7 Power Plane 1 ...

Страница 10: ...Layer Plots www ti com 10 SBAU345 March 2020 Submit Documentation Feedback Copyright 2020 Texas Instruments Incorporated PCM1840 Evaluation Module Figure 8 Power Plane 2 ...

Страница 11: ...March 2020 Submit Documentation Feedback Copyright 2020 Texas Instruments Incorporated PCM1840 Evaluation Module Figure 9 Bottom Layer 6 Schematic and Bill of Materials 6 1 PCM1840EVM Schematic Figure 10 and Figure 11 show the schematics for the PCM1840EVM ...

Страница 12: ... of Materials www ti com 12 SBAU345 March 2020 Submit Documentation Feedback Copyright 2020 Texas Instruments Incorporated PCM1840 Evaluation Module Figure 10 PCM1840EVM Schematics Main Figure 11 PCM1840 Schematics Power ...

Страница 13: ...T AT Ceramics D1 D3 2 Green LED Green SMD LED_0805 LTST C170KGKT Lite On D2 1 Red LED Red SMD 1206 LTST C150CKT Lite On H1 H2 H3 H4 4 Small nylon hex nut 0 10 thick with a 0 250 outside diameter and a 4 40 threading Hex Nut 4 40 Thread 250 Head Dia 9605 Keystone H5 H6 H7 H8 4 Standoff Hex Male Female 4 40 Nylon 1 2 Standoff Hex Male Female 4 40 Nylon 1 2 4802 Keystone J1 J2 J3 J4 4 Terminal Block ...

Страница 14: ... 2 2 9 mm TL1015AF160QG E Switch TP9 TP10 2 Test Point Multipurpose Black TH Black Multipurpose Testpoint 5011 Keystone U1 1 PCM1840IRTWR RTW0024H WQFN 24 RTW0024H PCM1840IRTWR Texas Instruments U2 1 500 mA Low Quiescent Current Low Noise High PSRR Low Dropout Linear Regulator for Automotive DRB0008B VSON 8 DRB0008B TPS73533QDRBRQ1 Texas Instruments U3 1 Low Power Dual Voltage Detector in Small uS...

Страница 15: ...edback Copyright 2020 Texas Instruments Incorporated PCM1840 Evaluation Module 7 Related Documentation Texas Instruments PCM1840 Quad Channel 32 Bit 192 kHz Burr Brown Audio ADC Data Sheet Texas Instruments TPS37xx Dual Channel Low Power High Accuracy Voltage Detectors Data Sheet ...

Страница 16: ...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...

Страница 17: ... 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...

Страница 18: ...y for convenience and should be verified by User 1 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 2 Use EVMs only after User obtains the license of Test Radio Station as provided in R...

Страница 19: ... 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...

Страница 20: ...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...

Страница 21: ...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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