background image

EVALUATION BOARD/KIT IMPORTANT NOTICE

Texas Instruments (TI) provides the enclosed product(s) under the following conditions:

This evaluation board/kit is intended for use for

ENGINEERING DEVELOPMENT, DEMONSTRATION, OR EVALUATION PURPOSES

ONLY

and is not considered by TI to be a finished end-product fit for general consumer use. Persons handling the product(s) must have

electronics training and observe good engineering practice standards. As such, the goods being provided are not intended to be complete
in terms of required design-, marketing-, and/or manufacturing-related protective considerations, including product safety and environmental
measures typically found in end products that incorporate such semiconductor components or circuit boards. This evaluation board/kit does
not fall within the scope of the European Union directives regarding electromagnetic compatibility, restricted substances (RoHS), recycling
(WEEE), FCC, CE or UL, and therefore may not meet the technical requirements of these directives or other related directives.

Should this evaluation board/kit not meet the specifications indicated in the User’s Guide, the board/kit may be returned within 30 days from
the date of delivery for a full refund. THE FOREGOING WARRANTY IS THE EXCLUSIVE WARRANTY MADE BY SELLER TO BUYER
AND IS IN LIEU OF ALL OTHER WARRANTIES, EXPRESSED, IMPLIED, OR STATUTORY, INCLUDING ANY WARRANTY OF
MERCHANTABILITY OR FITNESS FOR ANY PARTICULAR PURPOSE.

The user assumes all responsibility and liability for proper and safe handling of the goods. Further, the user indemnifies TI from all claims
arising from the handling or use of the goods. Due to the open construction of the product, it is the user’s responsibility to take any and all
appropriate precautions with regard to electrostatic discharge.

EXCEPT TO THE EXTENT OF THE INDEMNITY SET FORTH ABOVE, NEITHER PARTY SHALL BE LIABLE TO THE OTHER FOR ANY
INDIRECT, SPECIAL, INCIDENTAL, OR CONSEQUENTIAL DAMAGES.

TI currently deals with a variety of customers for products, and therefore our arrangement with the user

is not exclusive.

TI assumes

no liability for applications assistance, customer product design, software performance, or infringement of patents or

services described herein.

Please read the User’s Guide and, specifically, the Warnings and Restrictions notice in the User’s Guide prior to handling the product. This
notice contains important safety information about temperatures and voltages. For additional information on TI’s environmental and/or
safety programs, please contact the TI application engineer or visit

www.ti.com/esh

.

No license is granted under any patent right or other intellectual property right of TI covering or relating to any machine, process, or
combination in which such TI products or services might be or are used.

FCC Warning

This evaluation board/kit is intended for use for

ENGINEERING DEVELOPMENT, DEMONSTRATION, OR EVALUATION PURPOSES

ONLY

and is not considered by TI to be a finished end-product fit for general consumer use. It generates, uses, and can radiate radio

frequency energy and has not been tested for compliance with the limits of computing devices pursuant to part 15 of FCC rules, which are
designed to provide reasonable protection against radio frequency interference. Operation of this equipment in other environments may
cause interference with radio communications, in which case the user at his own expense will be required to take whatever measures may
be required to correct this interference.

EVM WARNINGS AND RESTRICTIONS

It is important to operate this EVM within the input voltage range of 5.7 V to 6.5 V and the output voltage range of 5.7 V to 6.5 V.

Exceeding the specified input range may cause unexpected operation and/or irreversible damage to the EVM. If there are questions
concerning the input range, please contact a TI field representative prior to connecting the input power.

Applying loads outside of the specified output range may result in unintended operation and/or possible permanent damage to the EVM.
Please consult the EVM User's 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, some circuit components may have case temperatures greater than 25

°

C. The EVM is designed to operate

properly with certain components above 50

°

C as long as the input and output ranges are maintained. These components include but are

not limited to linear regulators, switching transistors, pass transistors, and current sense resistors. These types of devices can be identified
using the EVM schematic located in the EVM User's Guide. When placing measurement probes near these devices during operation,
please be aware that these devices may be very warm to the touch.

Mailing Address: Texas Instruments, Post Office Box 655303, Dallas, Texas 75265

Copyright © 2008, Texas Instruments Incorporated

Summary of Contents for ADS5474

Page 1: ...ture Single Batch 10 5 4 Continuous Capture 10 6 Import and Export of Data 10 6 1 Import Data 10 6 2 Export Data 10 7 Data Analysis 10 7 1 Analysis Settings 10 7 2 Analysis Window Output 11 8 Plot Tools 12 9 Keyboard Commands 12 10 MATLAB Interface 13 11 Results 13 12 Troubleshooting 15 13 SP Devices Intellectual Property 15 14 Printed Circuit Board Layout Bill of Materials and Schematic 16 14 1 P...

Page 2: ... 16 USB and Logic Analyzer Connectors 24 17 FPGA System Schematic 25 18 Power Supply Schematic 26 List of Tables 1 DIP Switches Functional Descriptions 5 2 DIP Switches Modes 5 3 LED Functions 5 4 Bill of Materials 20 MATLAB is a trademark of The MathWorks Inc ADS5474 ADX Evaluation Board for Interleaving 2 SLAU247 August 2008 Submit Documentation Feedback ...

Page 3: ...be clocked with a 50 duty cycle clock at half of the sampling rate of the interleaved system sampling rate The interleaving and digital post correction ADX IP core is implemented in real time using the Virtex 5 FPGA on the board Digital output from the EVM is provided both by two Soft Touch Probe support for Agilent E5405A and Tektronix P6908 probes connectors for logic analyzers and by a USB conn...

Page 4: ... the input of the ADCs The analog input is converted into a differential signal by using a transformer and is fed to both ADCs When providing an analog input consider the following guidelines for correct operation of the ADX IP core when enabled 1 The analog input must be less the 85 of the Nyquist band The Nyquist band refers to one half of the combined interleaved sampling rate of the analog inp...

Page 5: ... data The signal is reconstructed for the second Nyquist band Four LEDs are on the board A more thorough description on the signal requirements for estimation is available in the data sheet for the ADX IP core Table 3 LED Functions LED Color Description D4 Green On Channel mismatch has been estimated and outputs are valid to specification Off Channel mismatch is not estimated output may be outside...

Page 6: ... DIP switches The onboard USB1 1 chip communicates with the FPGA Transfer speed is 3 megabaud To install the software run the ADCaptureLab setup exe file and follow the instructions for installation Before continuing you need to close any other application running to avoid the need of rebooting the system 6 ADS5474 ADX Evaluation Board for Interleaving SLAU247 August 2008 Submit Documentation Feed...

Page 7: ...om the installation program the drivers are pre installed on your hard disk but are not activated until you connect a powered ADS ADX EVM to the computer for the first time SLAU247 August 2008 ADS5474 ADX Evaluation Board for Interleaving 7 Submit Documentation Feedback ...

Page 8: ...FT plot Plot tools 8 SETTINGS SETUP 5 1 Connect Capture 5 2 Import Export Plot settings 7 1 Time series plot of data View www ti com ADS5474 ADX Evaluation Board for Interleaving 8 SLAU247 August 2008 Submit Documentation Feedback ...

Page 9: ...oard Available choices 1 ADX EVM 2xADS5463 12b 2 ADX EVM 2xADS5474 14b 1 To find a board push the button labeled Find USB Devices The boards connected to the computer then show up in the Devices box Status information on the enumeration of devices shows in Log window 2 Select a compatible device board from the Devices list The buttons Acquire data and Run are then activated SLAU247 August 2008 ADS...

Page 10: ...e capturing If plots are in Play mode see Section 7 plots are updated continuously as new data arrives from the board Select a file file on text file format supported in dialog box and press Open File contents are loaded into the plot windows unless they are in Pause mode To import you can also drag and drop the file to the ADCaptureLab main window directly Select filename in dialog box and press ...

Page 11: ...s the color scheme of the plot routines Available modes are White background printer friendly Black background Window Windowing function used for FFT and for analysis functions Available Blackman Hamming Rectangular Autoscale FFT Y Axis When enabled autoscales the y axis of the FFT plot If disabled y axis is locked between 0 and 130 dBFS Mark signal props When enabled fundamental tone s and SFDR l...

Page 12: ...nd distortion ENOB Single tone Effective Number Of Bits Based directly on the SNDR value Two tone If the mouse cursor is placed in the upper right side of any of the plot windows a plot toolbar shows Plot tool Description Play Pause To put plot in Play Pause mode In play mode plot displays new data as it arrives either by acquiring or by importing from file In pause mode plot does not update Copy ...

Page 13: ...ire The following typical results were taken from the ADS ADX evaluation module using a filtered Agilent 8644B clock source which provided each ADC a 400 MHz sampling clock When using the onboard ADX interleaving technology this results in a combined 800 MSPS sampling rate of the analog input signal Another filtered Agilent 8644B was used to provide a 1 dBFS single tone into the EVM The results ar...

Page 14: ...0 100 120 50 60 70 80 90 100130 170230 250 270 491 650 f Frequency Hz Offset SFDR dBc Image Results www ti com Figure 4 491 5 MHz Figure 5 ADS5474 ADX ADS5474 ADX Evaluation Board for Interleaving 14 SLAU247 August 2008 Submit Documentation Feedback ...

Page 15: ... and found in list but when trying to Check if board is powered acquire board does not respond correctly Check that correct board format is selected in Setup Settings 5 1 Try to push the onboard reset button Press Find USB Devices again select board and retry Try to turn the power off and on again Press Find USB Devices again select board and retry Time series plot or FFT does not update when acqu...

Page 16: ...uit Board Layout Printed Circuit Board Layout Bill of Materials and Schematic www ti com The following illustrations show the eight layers of the ADX evaluation board Figure 6 Layer 1 16 ADS5474 ADX Evaluation Board for Interleaving SLAU247 August 2008 Submit Documentation Feedback ...

Page 17: ...ww ti com Printed Circuit Board Layout Bill of Materials and Schematic Figure 7 Layer 2 Figure 8 Layer 3 SLAU247 August 2008 ADS5474 ADX Evaluation Board for Interleaving 17 Submit Documentation Feedback ...

Page 18: ...inted Circuit Board Layout Bill of Materials and Schematic www ti com Figure 9 Layer 4 Figure 10 Layer 5 18 ADS5474 ADX Evaluation Board for Interleaving SLAU247 August 2008 Submit Documentation Feedback ...

Page 19: ...w ti com Printed Circuit Board Layout Bill of Materials and Schematic Figure 11 Layer 6 Figure 12 Layer 7 SLAU247 August 2008 ADS5474 ADX Evaluation Board for Interleaving 19 Submit Documentation Feedback ...

Page 20: ... R37 R39 R40 R65 R121 R122 R124 R125 1 100 000 097 Resistor 10 kΩ 0402 1 0 063W 0402 R43 0 100 001 043 Resistor 56 Ω 0603 1 0 1W 0603 4 100 001 047 Resistor 82 Ω 0603 1 0 1W 0603 R30 R33 1 100 001 069 Resistor 680 Ω 0603 1 0 1W 0603 R100 1 100 001 083 Resistor 2 7 kΩ 0603 1 0 1W 0603 R28 1 100 001 091 Resistor 5 6 kΩ 0603 1 0 1W 0603 R41 1 100 001 093 Resistor 6 8 kΩ 0603 1 0 1W 0603 R69 1 100 001...

Page 21: ...5DB321D SU U5 1 103 005 002 DS2432 1 kbit protected 1 wire EEPROM with SHA 1 TSOC8 Maxim DS2432 U20 engine 2 103 010 014 PTH08080W 2 2A DC DC module 4 5 18V in 0 9 5 5V out SMD Texas Instruments PTH08080WAZ U10 U11 1 103 010 016 REG104GA 3 3G4 3 3V LDO 1A max 480mV drop SOT223 6 Texas Instruments REG104GA 3 3 U9 1 103 010 017 REG104FA 5 5V LDO 1A max 580mV drop DDPAK 5 Texas Instruments REG104FA 5...

Page 22: ...hematic Printed Circuit Board Layout Bill of Materials and Schematic www ti com Figure 14 Front End Schematic 22 ADS5474 ADX Evaluation Board for Interleaving SLAU247 August 2008 Submit Documentation Feedback ...

Page 23: ...www ti com Printed Circuit Board Layout Bill of Materials and Schematic Figure 15 FPGA I O Schematic SLAU247 August 2008 ADS5474 ADX Evaluation Board for Interleaving 23 Submit Documentation Feedback ...

Page 24: ...d Circuit Board Layout Bill of Materials and Schematic www ti com Figure 16 USB and Logic Analyzer Connectors 24 ADS5474 ADX Evaluation Board for Interleaving SLAU247 August 2008 Submit Documentation Feedback ...

Page 25: ...www ti com Printed Circuit Board Layout Bill of Materials and Schematic Figure 17 FPGA System Schematic SLAU247 August 2008 ADS5474 ADX Evaluation Board for Interleaving 25 Submit Documentation Feedback ...

Page 26: ...rinted Circuit Board Layout Bill of Materials and Schematic www ti com Figure 18 Power Supply Schematic 26 ADS5474 ADX Evaluation Board for Interleaving SLAU247 August 2008 Submit Documentation Feedback ...

Page 27: ...uct This notice contains important safety information about temperatures and voltages For additional information on TI s environmental and or safety programs please contact the TI application engineer or visit www ti com esh No license is granted under any patent right or other intellectual property right of TI covering or relating to any machine process or combination in which such TI products or...

Page 28: ...usiness 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 neces...

Reviews:

Related manuals for ADS5474