Texas Instruments ADS5XJ6XEVM User manual

User's Guide
SLAU641D–June 2015–Revised January 2016
ADS5XJ6X Evaluation Module
This user's guide describes the characteristics, operation, and use of the ADS5XJ6X evaluation module
(EVM). This document also provides a quick start guide, evaluation procedures, a description of the
software, some alternate hardware configurations, and descriptions of the jumpers, connectors, and LEDs.
Contents
1 Overview...................................................................................................................... 2
2 Quick Start Guide............................................................................................................ 4
3 Optimizing Evaluation Results............................................................................................ 11
4 Software Description....................................................................................................... 12
5 Alternate Hardware Configurations ...................................................................................... 14
Appendix A ....................................................................................................................... 16
List of Figures
1 EVM Feature Locations..................................................................................................... 3
2 Quick Start Test Setup...................................................................................................... 5
3 ADS54Jxx GUI Low Level View Tab...................................................................................... 6
4 HSDC Pro GUI Main Panel................................................................................................. 7
5 Channel 1 Data Capture Results from Quick Start Procedure......................................................... 8
6 Channel 1 Data Capture Results in Bypass Mode ...................................................................... 9
7 ADS54Jxx GUI.............................................................................................................. 12
8 Low Level View Tab ....................................................................................................... 13
9 Low Level View Tab ....................................................................................................... 14
List of Tables
1 Quick Start Performance Measurements................................................................................. 8
2 Quick Start Performance Measurements................................................................................. 9
3 Troubleshooting Tips....................................................................................................... 10
4 HSDC Pro Settings to Optimize Results ................................................................................ 11
5 ADS54J/58J6X GUI Tab Descriptions................................................................................... 12
6 Low Level View Controls.................................................................................................. 13
7 Jumper Descriptions and Default Settings.............................................................................. 16
8 Connector Description..................................................................................................... 16
9 LED Descriptions........................................................................................................... 17
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Overview www.ti.com
1 Overview
This document is intended to serve as a user’s guide for the ADS5XJ6x EVM. The ADS5XJ6XEVM is an
evaluation module (EVM) designed to evaluate the ADS58J63 and ADS54J66 high-speed, JESD204B
interface ADCs. The EVM includes an onboard clocking solution (LMK04828), transformer coupled inputs,
full power solution, and easy-to-use software GUI and USB interface.
The following features apply to this EVM:
• Transformer-coupled signal input network allowing a single-ended signal source from 0.25 MHz to 750
MHz
• LMK04828 system clock generator that generates FPGA reference clocks for the high-speed serial
interface and may be used to generate the ADC sampling clock (default setting)
• Transformer-coupled clock input network to test the ADC performance with a very low-noise clock
source
• High-speed serial data output over a standard FMC interface connector
The ADS5XJ6XEVM is designed to work seamlessly with the TSW14J56EVM, Texas Instruments’
JESD204B data capture/ pattern generator card, through the High Speed Data Converter Pro (HSDC Pro)
software tool for high-speed data converter evaluation. The ADS5XJ6XEVM was also designed to work
with many of the development kits from leading FPGA vendors that contain an FMC connector.
1.1 Required Hardware
The following equipment is included in the EVM evaluation kit.
• ADS5XJ6X Evaluation Board (EVM)
• +5-V DC power cable
• Mini-USB cable
The following list of equipment are items that are not included in the EVM evaluation kit but are items
required for evaluation of this product in order to achieve the best performance:
• TSW14J56EVM Data Capture Board, two 5-V power supplies, and Mini-USB cable
• +5-V DC power supply with a minimum current source of 3 Amps
• Computer running Microsoft®Windows®8, 7, or XP
• One low-noise signal generator. Recommendations:
– RF generator, > +17 dBm, < –40 dBc harmonics, < 500 fs jitter 20 kHz–20 MHz, 10 MHz–2 GHz
frequency range
– Examples: TSW2170EVM, HP HP8644B, Rohde & Schwarz SMA100A
• Band-pass filter for desired analog input. Recommendations:
– Band-pass filter, ≥60-dB harmonic attenuation, ≤5% bandwidth, > +18-dBm power, < 5-dB
insertion loss
– Examples: Trilithic 5VH-series Tunable BPF, K&L BT-series Tunable BPF, TTE KC6 or KC7-series
Fixed BPF
• Signal path cables, SMA and/or BNC with BNC-to-SMA adapters
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ADC Reset Switch
USB Connector
+5-V Input Power
Connector
Channel A
Analog Input
Channel B
Analog Input Channel C Analog Input
Channel D
Analog Input
LMK04828
Reference
Input
External
ADC Clock
Input
FMC Connector
(Backside)
LMK
ADC
www.ti.com Overview
1.2 Required Software
The following software is required to operate the ADS5XJ6XEVM and is available online. See References,
Section 1.4 for links.
• ADS54Jxx EVM GUI
The following software is required to operate the TSW14J56EVM and is available online. See References,
Section 1.4 for links:
• High Speed Data Converter Pro software
1.3 Evaluation Board Feature Identification Summary
Figure 1 illustrates the locations of the EVM features:
Figure 1. EVM Feature Locations
1.4 References
The following links provide convenient references:
• ADS5XJ6XEVM software, schematics, layout, BOM, available at: www.ti.com/tool/ADS58J63evm and
www.ti.com/tool/ADS54J66evm
• ADS58J63 datasheet, available at www.ti.com/product/ADS58J63
• ADS54J66 datasheet, available at www.ti.com/product/ADS54J66
• LMK04828 datasheet, available at www.ti.com/product/lmk04828
• TSW14J56EVM User’s Guide, available at www.ti.com/tool/TSW14J56EVM
• High Speed Data Converter Pro User’s Guide, available at www.ti.com/tool/dataconverterpro-sw
NOTE: Schematics, layout, and BOM are available on the ADS54J66EVM and ADS58J63EVM
product page on www.ti.com.
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Quick Start Guide www.ti.com
2 Quick Start Guide
This section provides a guide through the EVM test procedure to obtain a valid data capture from the
ADS5XJ6XEVM using the TSW14J56EVM capture card. This should be the starting point for all
evaluations.
2.1 Software Installation
The proper software must be installed before beginning evaluation. See Required Software,Section 1.2
for a list of the required software. References Section 1.4 of this document contains links to find the
software on the TI website.
NOTE: The software must be installed before connecting the ADS5XJ6XEVM and TSW14J56 to the
computer for the first time.
2.1.1 ADS54Jxx GUI Installation
The ADS54Jxx GUI is used to control the ADS5XJ6XEVM. It must be used to properly configure the
devices on the EVM.
1. Download the ADS54Jxx GUI from the TI website. The References section of this document contains
link to find the software on the TI website.
2. Extract the files from the zip file.
3. Run setup.exe and follow the installation prompts.
2.1.2 High Speed Data Converter Pro GUI Installation
High Speed Data Converter Pro (HSDC Pro) is used to control the TSW14J56EVM and analyze the
captured data. Please see the HSDC Pro user’s guide for more information.
1. Download HSDC Pro from the TI website. The References section of this document contains the link to
find the software on the TI website.
2. Extract the files from the zip file.
3. Run setup.exe and follow the installation prompts.
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170 MHz, +15 dBm
Low-Noise
Power Supply
5 VDC @ 3 A
Power
Switch
TSW14J56EVM
PC Running
HSDC Pro
Mini-USB Cable
170-MHz
Bandpass
Filter
USB 3.0 Cable
Channel A
ADC EVM
Analog Input
Low-Noise
Signal Generator
5-VDC Power Supply Cable
Low-Noise
Power Supply
5 VDC @ 3 A
www.ti.com Quick Start Guide
2.2 Hardware Setup Procedure
A typical test setup using the ADS5XJ6XEVM and TSW14J56EVM is shown in Figure 2. This is the test
setup that will be used for the quick start procedure. The rest of this section will describe the hardware
setup steps.
Figure 2. Quick Start Test Setup
2.2.1 TSW14J56EVM Setup
First, setup the TSW14J56EVM with following the instructions:
1. Connect the ADS54J/58J6XEVM to the TSW14J56EVM using the FMC connectors.
2. Connect the included power supply cable to connector J11 (+5 V IN) and the other end to a
+5 VDC ±0.3 VDC, 3-A power supply.
3. Connect the included USB 3.0-to-USB 2.0 cable to the USB 3.0 connector (J9)
4. Turn on the power supply. Flip the power switch (SW6) to the “ON” position
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2.2.2 ADS54J/58J6XEVM Setup
Next, setup the ADS5XJ6XEVM with the following instructions:
1. Connect the included 5-V power supply cable to connector J14 of the EVM. Connect the red wire of
the power cable to +5 VDC ±0.1 VDC of a power supply rated for at least 3 A. Connect the black wire
to the GND terminal of the power supply.
2. Connect the included mini-USB cable to the USB connector J13
3. Set the analog input signal generator for 170 MHz, and about +15 dBm of power
4. Place a narrow passband band-pass filter at the output of the analog signal generator to remove noise
and harmonics from the signal generator
5. Connect the analog input signal generator to the EVM though SMA connector AIN (J1)
2.3 Software Setup Procedure
The software can be opened and configured once the hardware is properly setup.
2.3.1 ADS54J/58J6X GUI Configuration, Mode 0
1. Open the ADS54Jxx GUI by going to Start Menu →All Programs →Texas Instruments ADCs →
ADS54Jxx GUI
2. Verify that the green USB Status indicator is lit in the top right corner of the GUI. If it is not lit, click the
Reconnect USB button and check the USB Status indicator again. If it is still not lit then verify the EVM
is connected to the computer through the included mini-USB cable.
3. Click on the Low Level View tab then click the Load Config button.
4. Navigate to “C:\Program Files(86)\Texas Instruments\ADS54Jxx GUI\Configuration Files”, select the
file called “LMK_Config_LMF_4841_491p52_MSPS.cfg”, then click “OK”. This will program the
LMK04828 to provide a 491.52-MHz clock to the ADC.
5. Verify that the LMK04828 PLL is locked by checking that the “PLL2 LOCKED” LED (D3) is lit.
6. Once the LMK04828 PLL is locked, press SW1 (ADC RESET) to provide a hardware reset to the ADC.
This switch is located in the middle of the EVM.
7. In the Low Level View tab, click Load Config. Select the file called “ADS5xJ6x_2x_Fs_4_mode_0.cfg”
and click "OK". The ADS5XJ6XEVM is now configured for a fixed frequency Fs/4 complex digital mixer
and decimate by 2 digital filter mode using 4 JESD204B lanes.
Figure 3. ADS54Jxx GUI Low Level View Tab
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www.ti.com Quick Start Guide
2.3.2 HSDC Pro GUI Configuration
1. Open High Speed Data Converter Pro by going to Start Menu →All Programs →Texas Instruments →
High Speed Data Converter Pro. The GUI main page looks as shown in Figure 4.
Figure 4. HSDC Pro GUI Main Panel
2. When prompted to select the capture board, select the TSW14J56 whose serial number corresponds
to the serial number on the TSW14J56EVM and click “OK”. This popup can be accessed through the
Instrument Options menu.
3. If no firmware is currently loaded, there will be a message indicating this. Click on “OK”.
4. Verify the ADC tab at the top of the GUI is selected.
5. Use the Select ADC drop-down menu at the top left corner to select ADS54J66_LMF_4841.
6. When prompted to update the firmware for the ADC, click “Yes” and wait for the firmware to download
to the TSW14J56. This will take about 3 seconds.
7. Enter “245.76M” into the ADC Output Data Rate field at the bottom left corner then click outside this
box or press return on the PC keyboard.
8. The GUI will display the new lane rate of the SerDes interface based off of the sample rate and other
parameters from the loaded configuration files. Click ‘OK”.
9. Click the Instrument Options menu at the top of HSDC Pro and select Reset Board. Change the default
setting display mode from "Real FFT" to "Complex FFT". This button is located near the top left of the
GUI main page. In this mode, channel 1 (I) data and channel 2 (Q) data will be used to generate the
complex waveform. This waveform will be duplicated on both channels 1 and 2 when in the complex
mode. Data from channel B input will be on channels 3 and 4, and so on for inputs C and D.
10. Click “Capture” in HSDC Pro to capture data from the ADC.
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11. The results from the captured data of Channel 1 should look like Figure 5 and the performance should
be similar to Table 1. If this result is not achieved, then see the Quick Start Troubleshooting section of
this document.
Mixing with Fs/4 inverts the spectrum causing the 170MHz input tone location to be located at -Fin + Fs/4 = -170 MHz
+ [491.52/4] = -47.12 MHz
Figure 5. Channel 1 Data Capture Results from Quick Start Procedure
Table 1. Quick Start Performance Measurements
Result Measured Value Units
SNR 69.73 dBFS
SFDR 95.6 dBFS
2.3.3 ADS54J66 GUI Configuration, Bypass Mode (For the ADS54J66EVM only)
In the ADS54Jxx GUI, click on the Low Level View tab then click the Load Config button. Navigate to
“C:\Program Files(86)\Texas Instruments\ADS54Jxx GUI\Configuration Files”, select the file called
“LMK_Config_LMF_4841_491p52_MSPS.cfg”, then click “OK”. This will program the LMK04828 to provide
a 491.52-MHz clock to the ADC. Verify that the LMK04828 PLL is locked by checking that the “PLL2
LOCKED” LED (D3) is lit. Once the LMK04828 PLL is locked, press SW1 (ADC RESET) to provide a
hardware reset to the ADC.
In the Low Level View tab, click Load Config. Select the file called “ADS54J66_bypass_4421.cfg” and click
"OK". The ADS54J66EVM is now configured for bypass mode using 4 JESD204B lanes.
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2.3.4 HSDC Pro GUI Configuration
Inside the HSDC Pro GUI, select ADS54J66_LMF_4421. If prompted to update the firmware for the ADC,
click “Yes” and wait for the firmware to download to the TSW14J56. This will take about 3 seconds. Enter
“491.52M” into the ADC Output Data Rate field at the bottom left corner then click outside this box or
press return on the PC keyboard. The GUI will display the new lane rate of the SerDes interface based off
of the sample rate and other parameters from the loaded configuration files. Click ‘OK”. Click the
Instrument Options menu at the top of HSDC Pro and select Reset Board. Make sure the display mode is
set to "Real FFT". Click “Capture” in HSDC Pro to capture data from the ADC. The results from the
captured data of Channel 1 should look like Figure 6 and the performance should be similar to Table 2. If
this result is not achieved, then see the Quick Start Troubleshooting section of this document.
Figure 6. Channel 1 Data Capture Results in Bypass Mode
Table 2. Quick Start Performance Measurements
Result Measured Value Units
SNR 69.04 dBFS
SFDR 85 dBFS
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2.4 Quick Start Troubleshooting
Use Table 3 to assist with problems that occur during the quick-start procedure.
Table 3. Troubleshooting Tips
Issue Troubleshooting Tips
General Problems Verify the test setup shown in Figure 2 and repeat the setup procedure as described in this
document.
Check power supplies to the EVM and TSW14J56EVM. Verify that the power switches are in the
ON position.
Check signal and clock connections to EVM.
Check that all boards are properly connected together.
Try pressing the CPU_RESET button on the TSW14J56EVM.
Try power-cycling the external power supply to the EVM and re-program the LMK and ADC
devices.
TSW14J56 LEDs are not correct: Verify the settings of the configuration switches on the TSW14J56EVM.
D1, D2, D5 – N/A Verify that the EVM configuration GUI is communicating with the USB and that the configuration
D4 – “Blinking” procedure has been followed.
D8, D10, D17, D28 – “ON” (LEDs not blinking) Re-program the LMK device.
Try pressing the CPU_RESET button on the TSW14J56EVM.
Try capturing data in HSDC Pro to force an LED status update.
Device GUI is not working properly Verify that the USB cable is plugged into the EVM and the PC.
Check the computer’s Device Manager and verify that a ‘USB Serial Device’ is recognized when
the EVM is connected to the PC.
Verify that the green ‘USB Status’ LED light in the top right corner of the GUI is lit. If it is not lit,
press the Reconnect FTDI button.
Try restarting the configuration GUI.
Check default jumper connections as shown in the Appendix A.
HSDC Pro software is not capturing good data Verify that the TSW14J56EVM is properly connected to the PC with a 3.0 USB cable and that the
or analysis results are incorrect board serial number is properly identified by the HSDC Pro GUI software.
Check that the proper ADC device is selected. In default conditions, ‘ADS58J66_LMF_4841’
should be selected.
Check that the analysis parameters are properly configured.
Check that the fundamental power is no larger than –1 dBFs.
HSDC Pro GUI software gives a time-out error Try to re-program the LMK device and reset the JESD204 Link.
when capturing data Verify that the ADC sampling rate is correct in the HSDC Pro software.
Sub-Optimal measured performance Make sure an ADC hardware reset was issued after loading the LMK but before loading the ADC
configuration file.
Check that the spectral analysis parameters are properly configured.
Verify that band-pass filters are used in the clock and input signal paths and that low-noise signal
sources are used.
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