Texas Instruments ADS54J64 Manuale utente

SBAU290–September 2017

ADS54J64 Evaluation Module

User's Guide

SBAU290–September 2017

ADS54J64 Evaluation Module

The ADS54J64EVM device is an evaluation board used to evaluate the ADS54J64 Integrated Receiver

from TI. This user’s guide is intended to guide users through setting up and evaluating the ADC for the

best performance.

Contents

1 Overview...................................................................................................................... 3

1.1 Required Hardware................................................................................................. 3

1.2 Required Software.................................................................................................. 3

1.3 Evaluation Board Feature Identification Summary ............................................................. 4

1.4 References .......................................................................................................... 4

2 Quick Start Guide............................................................................................................ 4

2.1 Software Installation................................................................................................ 4

2.2 Hardware Setup Procedure ....................................................................................... 5

2.3 Software Setup Procedure......................................................................................... 6

2.4 Quick Start Troubleshooting....................................................................................... 9

3 Optimizing Evaluation Results............................................................................................ 10

3.1 ADS54J64 Operating Mode...................................................................................... 10

3.2 LMK04828 Clocking Configuration.............................................................................. 11

3.3 Using an External Clock.......................................................................................... 11

3.4 Using a Coherent Input Source Frequency.................................................................... 12

3.5 HSDC Pro Settings................................................................................................ 13

4 Software Description....................................................................................................... 14

4.1 ADS54J64 GUI .................................................................................................... 14

4.2 Low Level View.................................................................................................... 15

5 EVM Hardware Modifications from Default ............................................................................. 16

Appendix A ....................................................................................................................... 17

List of Figures

1 EVM Feature Locations..................................................................................................... 4

2 Quick Start Test Setup...................................................................................................... 5

3 HSDC Pro GUI Main Panel................................................................................................. 7

4 HSDC Pro Sampling Rate and Additional Device Parameters ........................................................ 7

5 Data Capture Results From Quick Start Procedure..................................................................... 8

6 Test Setup Using an External Device Clock Source .................................................................. 12

7 ADS54J64 GUI ............................................................................................................. 14

8 Low Level View Tab ....................................................................................................... 15

List of Tables

1 Quick Start Performance Measurements................................................................................. 8

2 Troubleshooting Tips........................................................................................................ 9

3 HSDC Pro ADC Output Data Rate ...................................................................................... 10

4 LK04828 Macro States Provided in Configuration GUI ............................................................... 11

5 HSDC Pro Options for Optimal Analysis Results ...................................................................... 13

6 ADS54J64 GUI Tab Descriptions........................................................................................ 14

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7 Low Level View Controls.................................................................................................. 15

8 Jumper and Button Descriptions and Default Settings................................................................ 17

9 Connector Descriptions.................................................................................................... 18

10 LED Descriptions........................................................................................................... 19

Trademarks

HP is a registered trademark of Hewlett Packard.

Microsoft, Windows are registered trademarks of Microsoft Corporation.

Rohde & Schwarz is a registered trademark of Rohde & Schwarz.

All other trademarks are the property of their respective owners.

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Overview

SBAU290–September 2017

ADS54J64 Evaluation Module

1 Overview

This evaluation board includes the following important features:

• Transformer-coupled signal input network, allows a single-ended signal source to the EVM

• LMK04828, a system clock generator, generates the FPGA reference clock for the high-speed serial

interface

• Default transformer-coupled clock input network, tests the receiver performance with a very low-noise

clock

• High-speed serial data output over a standard FMC connector

• Device registers programming through a USB connector and FTDI USB-to-SPI bus translator

The ADS54J64EVM device is designed to work seamlessly with the TSW14J56EVM device, the

JESD204B data-capture card from TI, and the High-Speed Data Converter Pro (HSDCPro) software tool.

The ADS54J64EVM device is also compatible with many of the development kits from leading FPGA

vendors that contain an FMC connector.

1.1 Required Hardware

The EVM evaluation kit includes the following equipment:

• ADS54J64EVM evaluation board (EVM)

• Mini-USB cable

The EVM evaluation kit does not include the following list of equipment, but these items are required for

evaluation of this product, to achieve the best performance.

• 5-V DC power supply

• TSW14J56EVM data capture board, 5-V power supply, and mini-USB cable

• Computer running Microsoft®Windows®8, Windows 7, or Windows XP operating system

• Two low-noise signal generators

– Recommendations: RF generator, > 17 dBm, < –40 dBc harmonics, < 500 fs jitter 20 kHz – 20

MHz, and 10 MHz to 2 GHz frequency range

– Examples: TSW2170EVM, HP®HP8644B, and Rohde & Schwarz®SMA100A

• Bandpass filter for analog input (between 50 MHz to 500 MHz).

– Recommendations: bandpass filter, ≥60 dB harmonic attenuation, ≤5% bandwidth, > 18-dBm

power, and < 5-dB insertion loss

– Examples: Trilithic 5VH-series Tunable BPF, K&L BT-series Tunable BPF, TTE KC6, or KC7-series

Fixed BPF

• Bandpass filter for clock input (various frequencies)

– Recommendations: bandpass 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 or BNC with BNC-to-SMA adapters

• 6-dB, 50-Ωattenuator

1.2 Required Software

The following software is required and available online.

• To operate the ADS54J64EVM device: ADS58J64EVM GUI Installer (sbac161.zip)

• To operate the TSW14J56EVM device: High Speed Data Converter Pro software

See Section 1.4 for the software links.

Overview

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1.3 Evaluation Board Feature Identification Summary

Figure 1. EVM Feature Locations

1.4 References

•ADS58J64EVM GUI software, schematics, layout, BOM

• ADS54J64 data sheet (SBAS841)

• LMK04828 data sheet (SNAS703)

• TSW14J56EVM user’s guide (SLWU086)

• High-Speed Data Converter Pro user’s guide (SLWU087)

•High Speed Data Converter Pro software

• ADS58J64EVM GUI Installer (sbac161.zip)

2 Quick Start Guide

This section guides users through the EVM test procedure for obtaining a valid data capture from the

ADS54J64EVM device, using the TSW14J56EVM capture card. This step is the starting point for all

evaluations.

2.1 Software Installation

The proper software must be installed before beginning the evaluation. See Section 1.2 for a list of the

required software. Section 1.4 of this document contains links to the required software on the TI website.

NOTE: The software must be installed before connecting the ADS54J64EVM and TSW14J56EVM

devices to the computer for the first time.

2.1.1 ADS58J64 GUI Installation

The ADS54J64 GUI is used to control the devices on both the ADS58J64EVM and ADS54J64EVM. The

GUI must be used to properly configure the devices on the EVM.

1. Download the GUI from ti.com

2. Extract the files from the zip file

3. Run setup_ADS58J64EVM.exe and follow the installation prompts

USB 3.0 Cable

90-MHz

Bandpass

Filter Power

Switch

Low-Noise

Power Supply

+5 VDC @ 3 A

TSW14J56EVM

Mini-USB Cable

PC Running

HSDC Pro

+5 VDC Power Supply Cable

Low-Noise

Power Supply

+5 VDC @ 3 A

Channel A

Analog Input

Low-Noise

Signal Generator

90 MHz, +15 dBm

Jumpers

JP3 Short 2-3

JP7 Short 2-3

JP2 Short

JP21/22/23/24 Open

ADC EVM

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Quick Start Guide

SBAU290–September 2017

ADS54J64 Evaluation Module

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. Section 1.2 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.

2.2 Hardware Setup Procedure

Figure 2 shows a typical test setup using the ADS54J64EVM and TSW14J56EVM REV D devices. This

test setup is used for the quick start procedure. The rest of this section describes the hardware setup

steps.

Figure 2. Quick Start Test Setup

Quick Start Guide

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2.2.1 TSW14J56EVM Setup

Set up the TSW14J56EVM device by following these instructions:

1. Connect the ADS54J64EVM device to the TSW14J56EVM device using the FMC connectors.

2. Connect the included 5-V power supply to connector J11 (5-V IN) of the TSW14J56EVM device.

3. Connect the included mini-USB cable to the USB connector (J9) of the TSW14J56EVM device.

4. Move the power switch (SW6) of the TSW14J56EVM device to the on position.

2.2.2 ADS54J64EVM Setup

Set up the ADS54J64EVM device by following these instructions:

1. Connect the included 5-V power supply to the PWR IN (J14) connector.

2. Verify that JP7 and JP3 and are shorted at positions 2 – 3.

3. Verify that JP2 is shorted.

4. Connect the included mini-USB cable to the USB connector (J13).

5. Set the clock input signal generator for 61.44 MHz and 10 dBm.

6. Connect the Clock Signal generator to the LMK_CLK_IN (J12) connector.

7. Place the bandpass filter between the signal generator and the connector, to remove noise from the

signal.

8. Set the analog input signal generator for 90 MHz and 13 dBm.

9. Connect the 6-dB attenuator to the DIN (J1) input.

10. Connect the Analog Input Signal generator to the 6-dB attenuator.

11. Place the bandpass filter between the analog signal generator and the attenuator input, to remove

noise and harmonics from the signal generator.

12. Turn on all signal generators.

2.3 Software Setup Procedure

The software can be opened and configured once the hardware is properly set up.

2.3.1 ADS54J64 GUI Configuration

Set up the ADS54J64EVM GUI by following these instructions:

1. Open the ADS54J64EVM GUI from the Start Menu →All Programs →Texas Instruments →

ADS54J64 EVM.

2. After the GUI starts, verify that the green USB Status indicator in the top right corner of the GUI is

illuminated.

3. From the INTRO tab, press the Configure LMK04828 button labeled as "Fclk=983.04MHz". To quickly

evaluate device performance and check EVM functionality, the ADS58J64 EVM GUI has two sampling

rate options to choose from, 983.04 MHz and 737.28 MHz.

4. Press the ADC_RESET (SW1) button on the ADS54J64EVM device.

5. Press the Configure ADS54J64 button labeled as "983.04MHz Nyquist 1".

6. Press the Disable LMK04828 SYSREF to ADC button.

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Quick Start Guide

SBAU290–September 2017

ADS54J64 Evaluation Module

2.3.2 HSDC Pro GUI Configuration

Set up the HSDC Pro GUI by following these instructions.

1. Open High Speed Data Converter Pro from the Start Menu →All Programs →Texas Instruments →

High Speed Data Converter Pro. Figure 3 shows the GUI main page.

Figure 3. HSDC Pro GUI Main Panel

Figure 4. HSDC Pro Sampling Rate and Additional Device Parameters

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.

3. Select the ADC tab at the top of the GUI.

4. Use the Select ADC drop-down menu in the top-left corner to select ADS54J64_LMF_4841_mode01.

5. When prompted to update the firmware for the ADC, click the Yes button, and wait for the firmware to

download to the TSW14J56.

Quick Start Guide

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6. Press the Additional Device Parameters symbol next to the ADC Output Data Rate (see Figure 4), and

enter the following values, then press OK:

• Check the Enable box.

• ADC Sampling Rate = 983.04M

• ADC Input Frequency = 90M

• NCO = –122.88M

• Decimation = 4

7. Press the CPU_RESET button on the TSW14J56EVM device.

8. Click the Instrument Options menu at the top of HSDC Pro, and select Reset Board.

9. Click Capture in HSDC Pro to capture data from the ADC.

10. In HSDC Pro, change the Test Selection to Single Tone.

11. Also in HSDC Pro, change the spectrum analysis from Real FFT to Complex FFT.

12. From the Test Options file menu, enable the Analysis Window Markers.

13. Set the value of the Analysis Window Markers in the lower left corner of the HSDC Pro window:

• AWM1 = –120M

• AWM2 = 120M

14. The results from the captured data of Channel 1 should resemble Figure 5, and the performance

should be similar to Table 1. If this result was not achieved, then see Section 2.4 of this document.

Figure 5. Data Capture Results From Quick Start Procedure

Table 1. Quick Start Performance Measurements

Result Measured Value Units

SNR > 67 dBFS

SFDR > 80 dBFS

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Quick Start Guide

SBAU290–September 2017

ADS54J64 Evaluation Module

2.4 Quick Start Troubleshooting

Table 2 lists tips which can be used to assist with problems that may have occurred during the quick start

procedure.

Table 2. 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 the 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 reprogram

the LMK and ADC devices.

TSW14J56 LEDs are incorrect:

D1, D5 – N/A

D2, D4 – Flashing

D3, D6, D7 – OFF

D8, D28 – ON

Verify the settings of the configuration switches on the TSW14J56EVM.

Verify that the EVM configuration GUI is communicating with the USB,

and that the configuration procedure was followed.

LEDs not flashing – reprogram 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 Device Manager of the computer, 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 the LED is not lit, press the Reconnect FTDI button.

Try restarting the configuration GUI.

Check default jumper connections as shown in Appendix A.

HSDC Pro Software is not capturing good data or

analysis results are incorrect.

Verify that the TSW14J56EVM is properly connected to the PC with a

mini-USB cable, and that the board serial number is properly identified by

the HSDC Pro software.

Check that the proper ADC device is selected. In default conditions,

ADS54J64_LMF_4841_mode01 must be selected.

Check that the analysis parameters are properly configured.

HSDC Pro Software gives a time-out error when

capturing data. Try to reprogram the LMK device and reset the JESD204 Link.

Verify that the ADC sampling rate is correct in the HSDC Pro software.

Sub-optimal measured performance

Try pressing the Calibrate ADC button on the INTRO tab, to repeat the

configuration GUI procedure for programming the EVM

Check that the spectral analysis parameters are properly configured.

Verify that bandpass filters are used in the clock and input signal paths,

and that low-noise signal sources are used.

Optimizing Evaluation Results

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ADS54J64 Evaluation Module

3 Optimizing Evaluation Results

This section is meant to assist users in optimizing performance during evaluation of the product.

3.1 ADS54J64 Operating Mode

The ADS54J64 device may operate in eight different modes: Mode 0 through Mode 8 (excluding Mode 5).

Each mode may require a different device selection in HSDC Pro, device configuration script in the

ADS54J64 EVM GUI, and different sampling rate setup in HSDC Pro to operate correctly.

Table 3 shows the HSDC Pro sampling rate setup. The desired mode is selected from the ADS54J64EVM

GUI →Mode tab in the configuration GUI.

(1) The ADC Sampling Rate used in HSDC Pro for Mode 7 depends on the .ini file used. The example shown here applies to

selecting ‘ADS54J64_LMF_4421_mode7’ which strips the buffered 0s from the data stream.

Table 3. HSDC Pro ADC Output Data Rate

ADS54J64 Operating

Mode ADS54J64 Device

Clock Frequency HSDC Pro ADC

Sampling Rate Decimation NCO

Mode 0 983.04 MHz 491.52M 2 –122.88M

737.28 MHz 368.64M 2 –92.16M

Mode 1 983.04 MHz 491.52M 2 Depends on

programmed NCO word

737.28 MHz 368.64M 2 Depends on

programmed NCO word

Mode 2 983.04 MHz 491.52M 2 0

737.28 MHz 368.64M 2 0

Mode 3 983.04 MHz 491.52M 1 Depends on

programmed NCO word

737.28 MHz 368.64M 1 Depends on

programmed NCO word

Mode 4 983.04 MHz 491.52M 2 Depends on

programmed NCO word

737.28 MHz 368.64M 2 Depends on

programmed NCO word

Mode 6 Not yet supported.

Mode 7(1) 983.04 MHz 491.52M 2 Depends on

programmed NCO word

737.28 MHz 368.64M 2 Depends on

programmed NCO word

Mode 8 983.04 MHz 491.52M 1 0

737.28 MHz 368.64M 1 0

Mode 9 983.04 MHz 983.04M 1 0

737.28 MHz 737.28M 1 0

For operating in a mode other that Mode 0, follow the default start-up procedure, and then perform the

following:

1. From the ADS54J64 Mode tab in the configuration GUI, select the desired mode.

2. When selecting the device in HSDC Pro (), choose the device and enter the ADC Output Data Rate as

reported by the configuration GUI on the ADS54J64 Mode tab.

Based on the sampling rate and mode of operation, adjust ADC Output Rate Additional Device

Parameters to correctly label the harmonics. An example is shown in Figure 4 for Mode 0.

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