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The LMH1297EVM is an evaluation module designed for high-speed performance and functional
evaluation of the Texas Instruments LMH1297 12G UHD-SDI 75-Ω bidirectional I/O with integrated
reclocker. With this kit, users can quickly evaluate the cable reach and output signal integrity supported by
the LMH1297. High-performance edge-mount BNC connectors are used at the 75-Ω port for the SDI_IO
and SDI_OUT signals, while 100-Ω differential input and output ports are routed to edge-mount SMA
connectors. These connectors facilitate connection to lab equipment or user systems for performance
evaluation. An onboard MSP430 MCU is included to support an optional SMBus or SPI serial control
interface when configuring the LMH1297 operating modes.
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SNAU205A - March 2017 - Revised August 2019
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Copyright © 2017-2019, Texas Instruments Incorporated
SNAU205A - March 2017 - Revised August 2019
LMH1297EVM Evaluation Board
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LMH1297EVM Evaluation Board
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Related Manuals for Texas Instruments LMH1297EVM
Summary of Contents for Texas Instruments LMH1297EVM
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Page 1: Table Of Contents
SNAU205A – March 2017 – Revised August 2019 LMH1297EVM Evaluation Board The LMH1297EVM is an evaluation module designed for high-speed performance and functional evaluation of the Texas Instruments LMH1297 12G UHD-SDI 75-Ω bidirectional I/O with integrated reclocker. With this kit, users can quickly evaluate the cable reach and output signal integrity supported by the LMH1297. -
Page 2: Overview
.................. Input and Output Channel Connections Trademarks All trademarks are the property of their respective owners. Overview Figure 1. LMH1297EVM LMH1297EVM Evaluation Board SNAU205A – March 2017 – Revised August 2019 Submit Documentation Feedback Copyright © 2017–2019, Texas Instruments Incorporated... -
Page 3: Features
Digital Video Processing and Editing Ordering Information Table 1. LMH1297 Ordering Information EVM ID DEVICE ID DEVICE PACKAGE LMH1297EVM LMH1297RTV QFN (32) SNAU205A – March 2017 – Revised August 2019 LMH1297EVM Evaluation Board Submit Documentation Feedback Copyright © 2017–2019, Texas Instruments Incorporated... -
Page 4: Setup
Setup This section describes the jumpers and connectors on the EVM as well as how to connect, set up, and use the LMH1297EVM. When operating the LMH1297EVM, signal inputs and outputs can be connected as shown in Figure OUT0+... -
Page 5: Modes Of Operation
NOTE: Currently, the interface from PC to on-board MSP430 can only support SMBus communication. The external control pins on the LMH1297EVM are used to configure the default device settings. A 4-level input scheme across the control pin interface increases the amount of control levels available to the device with fewer physical pins. - Page 6 SDI_OUT_SEL pin enables or disables the SDI_OUT 75-Ω output. SDI_OUT_SEL See the data sheet and EVM schematic for additional operation information. RSV1 Reserved. Do not connect. Leave floating. LMH1297EVM Evaluation Board SNAU205A – March 2017 – Revised August 2019 Submit Documentation Feedback Copyright © 2017–2019, Texas Instruments Incorporated...
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Page 7: Software/Hardware Description And Setup
IN0+, IN0– (SMA) Software/Hardware Description and Setup By factory default, the LMH1297EVM is configured in CD Mode to accept a valid SDI signal on IN0 and output the retimed data on OUT0, SDI_IO, and SDI_OUT without programming the LMH1297 beforehand. - Page 8 1. The input signal on J24 and J25 can be connected to a video signal generator over matched 100- Ω differential cables. Either an LMH1219EVM or a second LMH1297EVM in EQ Mode can be used as a 75-Ω single-ended to 100-Ω differential converter before the DUT. In this case, either the LMH1219's 100-Ω...
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Page 9: Lmh1297Evm Cd Mode Default Setup For Smbus Operation With Sigcon Architect
J18 (SDI_OUT_SEL) = Level L x SDI_OUT powered up and enabled. USB-to-miniUSB Cable Figure 4. LMH1297EVM CD Mode Default Setup for SMBus Operation With SigCon Architect SNAU205A – March 2017 – Revised August 2019 LMH1297EVM Evaluation Board Submit Documentation Feedback... -
Page 10: Lmh1297Evm Eq Mode Default Setup For Smbus Operation With Sigcon Architect
J18 (SDI_OUT_SEL) = Level L x SDI_OUT powered up and enabled. USB-to-miniUSB Cable Figure 5. LMH1297EVM EQ Mode Default Setup for SMBus Operation With SigCon Architect LMH1297EVM Evaluation Board SNAU205A – March 2017 – Revised August 2019 Submit Documentation Feedback... -
Page 11: Retimed Output At 11.88 Gbps, 5.94 Gbps, 2.97 Gbps, 1.485 Gbps, And 270 Mbps
Figure 8. CD Mode at 5.94 Gbps, Measured at SDI_IO+, Figure 9. EQ Mode at 5.94 Gbps, Measured at OUT0±, Reclocked Output Reclocked Output SNAU205A – March 2017 – Revised August 2019 LMH1297EVM Evaluation Board Submit Documentation Feedback Copyright © 2017–2019, Texas Instruments Incorporated... -
Page 12: Cd Mode At 1.485 Gbps, Measured At Sdi_Io+, Reclocked Output
Figure 14. CD Mode at 270 Mbps, Measured at SDI_IO+, Figure 15. EQ Mode at 270 Mbps, Measured at OUT0±, Reclocked Output Reclocked Output LMH1297EVM Evaluation Board SNAU205A – March 2017 – Revised August 2019 Submit Documentation Feedback Copyright © 2017–2019, Texas Instruments Incorporated... -
Page 13: Sigcon Architect Lmh1297 Gui Profile
Figure 16. LMH1297EVM Configuration Page To configure a live LMH1297 using the GUI, the following steps should be taken: 1. Connect the LMH1297EVM through a USB cable to the PC. 2. Select the USB2ANY Device in the USB2ANY Details drop-down menu. -
Page 14: Low Level Page
• Field Description Figure 17 shows the Low Level Page. Figure 17. LMH1297EVM Low Level Page 6.2.1 Register Map The Register Map section contains the three main register pages: Shared Registers, CTLE-CDR Registers, and Config IO Registers. Within these register pages, the following can be observed: •... -
Page 15: High Level Page
• Macro Scripting Utility Figure 18 shows the High Level Page. Figure 18. LMH1297EVM High Level Page 6.3.1 High Level Interface This interface is dynamic and allows the user to view and control a variety of functions in the LMH1297 concurrently. - Page 16 .txt file. Figure 21 shows an example of a log file based on the macro utility example in Figure LMH1297EVM Evaluation Board SNAU205A – March 2017 – Revised August 2019 Submit Documentation Feedback Copyright © 2017–2019, Texas Instruments Incorporated...
- Page 17 SigCon Architect LMH1297 GUI Profile www.ti.com Figure 21. Macro Utility Example Log File SNAU205A – March 2017 – Revised August 2019 LMH1297EVM Evaluation Board Submit Documentation Feedback Copyright © 2017–2019, Texas Instruments Incorporated...
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Page 18: Eye Monitor Page
• Read back the detected data rate Figure 22 shows the Eye Monitor Page. Figure 22. LMH1297EVM Eye Monitor Page LMH1297EVM Evaluation Board SNAU205A – March 2017 – Revised August 2019 Submit Documentation Feedback Copyright © 2017–2019, Texas Instruments Incorporated... -
Page 19: Bill Of Materials
Power Connector, Receptacle, Mini-USB TE Connectivity 1734035-2 Type B, R/A, Top Mount SMT Header, 100mil, 2x2, Gold, TH Samtec TSW-102-07-G-D SNAU205A – March 2017 – Revised August 2019 LMH1297EVM Evaluation Board Submit Documentation Feedback Copyright © 2017–2019, Texas Instruments Incorporated... - Page 20 Texas Instruments MSP430F5529IPN to 85 degC, 80-pin QFP (PN), Green (RoHS & no Sb/Br) Crystal, 24.000MHz, 20pF, SMD ECS Inc. ECS-240-20-5PX-TR LMH1297EVM Evaluation Board SNAU205A – March 2017 – Revised August 2019 Submit Documentation Feedback Copyright © 2017–2019, Texas Instruments Incorporated...
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Page 21: Schematics
Green 1.00k 1.00k MODE_SEL MISO_ADDR1 1.00k 20.0k 1.00k 20.0k Copyright © 2016, Texas Instruments Incorporated Figure 23. LMH1297 Schematic Page SNAU205A – March 2017 – Revised August 2019 LMH1297EVM Evaluation Board Submit Documentation Feedback Copyright © 2017–2019, Texas Instruments Incorporated... - Page 22 2.2µF 60 ohm 22µF 0.01µF 1µF 7.5V TPS73533DRBR Copyright © 2016, Texas Instruments Incorporated Figure 24. MSP430 USB2ANY Schematic Page LMH1297EVM Evaluation Board SNAU205A – March 2017 – Revised August 2019 Submit Documentation Feedback Copyright © 2017–2019, Texas Instruments Incorporated...
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Page 23: Evm Layout
EVM Layout www.ti.com EVM Layout The following figures show the LMH1297EVM layout. The evaluation board controls signal integrity control settings through jumper pins. The LMH1297EVM allows access to all input channels (SDI_IO+ and IN0±) and output channels (SDI_IO+, OUT0±, and SDI_OUT+). It is very compact and low power. The QFN package offers an exposed thermal pad to enhance electrical and thermal performance. - Page 24 NOTE: Page numbers for previous revisions may differ from page numbers in the current version. Changes from Original (March 2017) to A Revision ....................... Page ........................• Initial Public Release Revision History SNAU205A – March 2017 – Revised August 2019 Submit Documentation Feedback Copyright © 2017–2019, Texas Instruments Incorporated...
- Page 25 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 © 2022, Texas Instruments Incorporated...