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SD394EVK
LMH0394 Evaluation Board
User Guide
Overview
The SD394 Evaluation Kit (EVK) enables evaluation of the LMH0394 3G/HD/SD SDI Adaptive Cable Equalizer.
Evaluation Kit Contents
The EVK contains the following parts:
•
SD394EVK board assembly with the LMH0394 cable equalizer
•
SD394EVK User Guide
Evaluation Board Description
Figure 1 shows the SD394 evaluation board and highlights some of its features.
SD394 EVK User Guide
Rev 1.2
National Semiconductor
EVK User Manual
October 14, 2010
FIGURE 1. SD394 Evaluation Board
1 of 8
© 2010, National Semiconductor Corp.
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Summary of Contents for National Semiconductor SD394EVK
- Page 1 The SD394 Evaluation Kit (EVK) enables evaluation of the LMH0394 3G/HD/SD SDI Adaptive Cable Equalizer. Evaluation Kit Contents The EVK contains the following parts: • SD394EVK board assembly with the LMH0394 cable equalizer • SD394EVK User Guide Evaluation Board Description Figure 1 shows the SD394 evaluation board and highlights some of its features.
- Page 2 CD present. To activate mute and force the outputs into a muted condition, set the jumper to pull MUTE to VCC. To SD394 EVK User Guide 2 of 8 Rev 1.2 © 2010, National Semiconductor Corp.
- Page 3 This LED is GREEN when an input signal has been detected, and OFF when no input is detected. D1 shows the status of Carrier Detect while in Pin Mode or SPI Mode. SD394 EVK User Guide 3 of 8 Rev 1.2 © 2010, National Semiconductor Corp.
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Page 4: Typical Performance
2.97 Gbps PRBS10, and the output signal is measured on the Agilent DCA-J 86100C oscilloscope. FIGURE 4. SD394 Output Waveform at 2.97 Gbps with 160m Belden 1694A Cable SD394 EVK User Guide 4 of 8 Rev 1.2 © 2010, National Semiconductor Corp. - Page 5 FIGURE 5. SD394 Output Waveform at 1.485 Gbps with 200m Belden 1694A Cable FIGURE 6. SD394 Output Waveform at 270 Mbps with 400m Belden 1694A Cable SD394 EVK User Guide 5 of 8 Rev 1.2 © 2010, National Semiconductor Corp.
- Page 6 Agilent 8722ES VNA with a 75Ω BNC to 75Ω Type N connector on the input. Note that return loss is layout dependent. SMPTE LIMIT FIGURE 7. SD394 Input Return Loss SD394 EVK User Guide 6 of 8 Rev 1.2 © 2010, National Semiconductor Corp.
- Page 7 Resistor, 9.76k-ohm, 1/10W, 1%, 0402 Panasonic - ECG ERJ-2RKF9761X Resistor, 0-ohm, 1/10W, 5%, 0402 Panasonic - ECG ERJ-2GE0R00X LMH0394 Cable Equalizer, LLP-16 National Semiconductor LMH0394SQ Schematic (next page) SD394 EVK User Guide 7 of 8 Rev 1.2 © 2010, National Semiconductor Corp.
- Page 8 AEC+ CDb/MOSI AEC- CD/MOSI BYPASS/CD MUTE/SCK MUTEREF...
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Page 9: Important Notice
IMPORTANT NOTICE Texas Instruments Incorporated and its subsidiaries (TI) reserve the right to make corrections, modifications, enhancements, improvements, and other changes to its products and services at any time and to discontinue any product or service without notice. Customers should obtain the latest relevant information before placing orders and should verify that such information is current and complete. -
Page 10: Texas Instruments
Mouser Electronics Authorized Distributor Click to View Pricing, Inventory, Delivery & Lifecycle Information: Texas Instruments SD394EVK/NOPB...
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