Texas Instruments TRF-LSC-AFE7950EVM User Manual
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Texas Instruments TRF-LSC-AFE7950EVM User Manual

Texas Instruments TRF-LSC-AFE7950EVM User Manual

Evaluation module
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EVM User's Guide: TRF-LSC-AFE7950EVM
TRF-LSC-AFE7950 Evaluation Module
Description
The TRF-LSC-AFE7950EVM evaluation module is
used to evaluate the performance of TI's
family of integrated RF sampling transceivers with TI's
TRF1208
single-ended-to-differential amplifier on RX,
and
TRF1108
differential-to-single-ended amplifier
on TX. The AFE79xx devices support up to four
transmit, four receive, and two feedback channels
(4T4R2F) and integrates a phase-locked loop (PLL)
and voltage-controlled oscillator (VCO) for generating
data-converter clocks. The AFE79xx integrates eight
JESD204B- and JESD204C-compatible serializer
or deserializer (SerDes) transceivers. These
transceivers are capable of running up to 29.5Gbps to
transmit and receive digital data through the onboard
FPGA mezzanine card (FMC) connector.
The EVM includes the
LMK04828
to provide reference clocks and SYSREF to the
analog front end (AFE) and capture card (field-
programmable gate array, FPGA). The evaluation
module (EVM) uses a single 5.5V input and includes
complete power-management circuitry. External
clocking options include support for feeding the
reference clock (for the on-chip PLL). The design
SLAU957 – JUNE 2025
Submit Document Feedback
interfaces with the TI pattern and capture card
solution (TSW14J56EVM or TSW14J57EVM), as well
as many FPGA development kits.
AFE79xx
Get Started
1. Order the TRF-LSC-AFE7950EVM
2. Order
3. Download the latest software and libraries.
4. Download the comprehensive reference design
5. For latest info please refer to
Features
•
•
clock generator
•
Applications
•
•
•
•
•
TRF-LSC-AFE7950EVM Board
Copyright © 2025 Texas Instruments Incorporated
TSW14J56EVM
OR
files.
DESIGN
folder.
Operates on single 5.5V supply
Includes onboard clock generation
RF front end with > 8GHz S2D and D2S amplifiers
Seeker front end
Radar
Defense radio
Tactical communications infrastructure
Wireless communications test
TRF-LSC-AFE7950 Evaluation Module
Description
TSW14J57EVM
AFE79XX-HSC-
1

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Summary of Contents for Texas Instruments TRF-LSC-AFE7950EVM

  • Page 1 TRF-LSC-AFE7950 Evaluation Module Description interfaces with the TI pattern and capture card solution (TSW14J56EVM or TSW14J57EVM), as well The TRF-LSC-AFE7950EVM evaluation module is as many FPGA development kits. used to evaluate the performance of TI's AFE79xx family of integrated RF sampling transceivers with TI's...
  • Page 2 1 Evaluation Module Overview The TRF-LSC-AFE7950EVM includes a clocking and power solution, and runs on a single 5.5V supply. Figure shows that the RF inputs and outputs using SMA connectors are on the top side of the EVM. Use a 10MHz reference clock through the SMA J15 (LMK_CLKIN) connector to lock the onboard voltage-controlled crystal oscillator (VCXO) with the LMK04828.

  • Page 3: Kit Contents

    Evaluation Module Overview 1.1 Introduction The TRF-LSC-AFE7950EVM evaluation module support up to four transmit, four receive, and two feedback channels (4T4R2F) tuned to various frequencies in the L, S, and C bands. CAUTION Hot surface. Contact can cause burns. Do not touch.

  • Page 4: Specification

    – TRF1108 TXD_OUT – Figure 1-3. TRF-LSC-AFE7950EVM Block Diagram 1.4 Device Information The AFE7950 is a high-performance, wide-bandwidth multichannel transceiver, integrating four RF sampling transmitter chains, four RF sampling receiver chains, and two RF sampling feedback chains (six RF sampling ADCs total).
  • Page 5 2. Check that the D9 (PWR) LED light is on. The power supply draws approximately 550mA to 650mA. 3. Connect a USB type mini-B cable from the PC to the USB port (J20) of the TRF-LSC-AFE7950EVM. 4. Check that the D10 (USB_PWR) LED light is on. The LED light strength depends on the USB cable length. If the LED light is not on, then use a shorter USB cable.

  • Page 6: Software Installation

    DATACONVERTERPRO-SW is called HSDC PRO, and the two terms are interchangeable. Download version 5.0 or greater from www.ti.com/tool/dataconverterpro-sw. The Latte software configures the TRF-LSC-AFE7950EVM. The latest version of Latte is available for download from TI's MySecure website. Request the software after signing in to myTI on the log-in page.
  • Page 7 Window 2: This window (also called Editor) shows the code in the script currently selected and is used to modify and save the code as necessary. • Windows 3 to 6: These windows are updated as the scripts run to configure the TRF-LSC-AFE7950EVM, and are mostly informational. •...
  • Page 8 AFE7950EVM through the automation python routine. The example used in this section is the default TRF-LSC- AFE7950EVM Mode 1. Table 4-1 lists the default Mode 1 configuration overview. Table 4-1. TRF-LSC-AFE7950EVM Mode 1 Configuration Overview Mode Default Programming TX (transmitter) 4 TXDACs are enabled, DSA = 0, LMFSHd_2TX = 44210, 6 ×...
  • Page 9 4.1.3 Steps to Start Automatic Configuration 1. Start the HSDC PRO software by going to Start > Texas Instruments > High Speed Data Converter Pro. Figure 4-1 illustrates that the HSDC PRO application started properly. Take note of the Serial Numbers of the TSW14J56EVM after the device is connected.
  • Page 10 2. Press the OK button to proceed the connection of the TSW14J56 EVM to the PC. Figure 4-2. HSDC PRO Connect to Board 3. Start the Latte software by going to Start > Texas Instruments > Latte. Ensure that the Latte software starts properly.
  • Page 11 Figure 4-5 shows where to enter the serial number of the TSW14J56 EVM per the highlighted line. Figure 4-5. TSW14J56 EVM Serial Number Location SLAU957 – JUNE 2025 TRF-LSC-AFE7950 Evaluation Module Submit Document Feedback Copyright © 2025 Texas Instruments Incorporated...
  • Page 12 Figure 4-6 Figure 4-7 show the expected following two error messages after the script runs. Figure 4-6. Latte Error 1 Figure 4-7. Latte Error 2 TRF-LSC-AFE7950 Evaluation Module SLAU957 – JUNE 2025 Submit Document Feedback Copyright © 2025 Texas Instruments Incorporated...
  • Page 13 Implementation Results 11. The default TRF-LSC-AFE7950EVM has the following RF frequency matching network: a. RXA (TRF1208): 1.8GHz–2.3GHz b. RXB (TRF1208): 4.8GHz–5.5GHz c. RXC (TRF1208): 7.3GHz–7.8GHz d. RXD (Balun): None e. FB1 (TRF1208): 5.8GHz–6.2GHz FB2 (Differential connectors): 6GHz g. TXA (TRF1108): 1GHz–5GHz h.
  • Page 14 2. Connect the RF signal generator output to J3 (RXA_IN), J1 (RXB_IN), and J4 (RXC_IN) to capture the RF input to the ADC. On the HSDC PRO application, press the Capture button to capture the ADC data. TRF-LSC-AFE7950 Evaluation Module SLAU957 – JUNE 2025 Submit Document Feedback Copyright © 2025 Texas Instruments Incorporated...
  • Page 15 RegProgrammer – USB Instrument created. 3. Missing or obsolete drivers for the FT4232H chip in the TRF-LSC-AFE7950EVM is a common error source. Use the device manager to verify a connection between the PC and the EVM by checking the USB instantiations.
  • Page 16 4. GPIO warnings or SYSREF errors typically indicate supply voltage or current limitations. Verify the power supply to the TRF-LSC-AFE7950EVM, and ensure a 5.5V supply voltage and a 5A current limit are used. Restart the Latte GUI and rerun the scripts.
  • Page 17 Enter 491.52 M as the data rate and 0.9 for a scaling factor. c. Create a sinusoid by entering the frequency in the Tone Generator section of the HSDC PRO window. d. Press Send to transmit the DAC pattern to the TRF-LSC-AFE7950EVM. Figure 4-12 shows the resulting message with the lane rate and reference clock expected in the FPGA.
  • Page 18 JESD204 link on the ADC side. The FFT output is also seen in the HSDC PRO ADC tab. A timeout on the ADC capture indicates a unsuccessful bringup of the AFE79xx. Try again after rerunning the AFE79xx configuration. TRF-LSC-AFE7950 Evaluation Module SLAU957 – JUNE 2025 Submit Document Feedback Copyright © 2025 Texas Instruments Incorporated...

  • Page 19: Additional Information

    4.2.1 EVM Status Indicators At this point, green LED D3 is lit. D3 indicates that PLL loop 2 of the TRF-LSC-AFE7950EVM is locked. Optionally, LED D4 indicates that PLL loop 1 of the TRF-LSC-AFE7950EVM is locked. If there are external equipment providing a 10MHz reference to the TRF-LSC-AFE7950EVM for lab-equipment synchronization, then LED D4 is lit.
  • Page 20 STANDARD TERMS FOR EVALUATION MODULES 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.
  • Page 21 www.ti.com 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.
  • Page 22 www.ti.com Concernant les EVMs avec antennes détachables Conformément à la réglementation d'Industrie Canada, le présent émetteur radio peut fonctionner avec une antenne d'un type et d'un gain maximal (ou inférieur) approuvé pour l'émetteur par Industrie Canada. Dans le but de réduire les risques de brouillage radioélectrique à...
  • Page 23 www.ti.com 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.
  • Page 24 Notwithstanding the foregoing, any judgment may be enforced in any United States or foreign court, and TI may seek injunctive relief in any United States or foreign court. Mailing Address: Texas Instruments, Post Office Box 655303, Dallas, Texas 75265 Copyright © 2023, Texas Instruments Incorporated...

  • Page 25: Important Notice

    TI products. TI’s provision of these resources does not expand or otherwise alter TI’s applicable warranties or warranty disclaimers for TI products. TI objects to and rejects any additional or different terms you may have proposed. IMPORTANT NOTICE Mailing Address: Texas Instruments, Post Office Box 655303, Dallas, Texas 75265 Copyright © 2025, Texas Instruments Incorporated...

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