Solutions For Xilinx Virtex and Spartan FPGAs

Analog for Xilinx FPGAs Solutions Guide (pdf) - Recommended National analog solutions for each Virtex and Spartan FGPA family as well as CoolRunner CPLDs.

National Participation at X-Fest

Courses we are involved with are:

• Designing with the Xilinx Virtex®-6 PCIe Gen2 Endpoint Block
  - Sigcon products (DS50PCI401)
• Designing with Xilinx Spartan®-6 Gigabit Transceivers and the PCIe Endpoint Block
  - Sigcon products (DS50PCI401, DS64BR401)
• FPGA-based Wireless Communications Systems Design
  - RD-170
• Fundamentals of FPGA-based Video Design
  - DS90C124/421
• High-speed Clocking: Challenges, Pitfalls and Solutions
  - LMK04000, LMX2531/41
• Interfacing DDR3 and LPDRAM with the Xilinx Spartan®-6 Hard Memory Controller
  - Power Modules
• Interfacing to an Analog World
  - WEBENCH Sensor Designer
• Powering Xilinx Virtex®-6 and Spartan®-6
  - Power Modules
• Xilinx Networking: 10/100/1000 to Real-Time
  - DP83640 IEEE 1588 PTP

Power Management

National is a leader in power management solutions. National's broad portfolio of devices fit practically any application. The following resources are specific to Xilinx Virtex and Spartan FPGAs.

• National's PowerExpert Software for Xilinx FPGAs and CPLDs - Automatically finds National power solutions and directly ties to National's online WEBENCH environment to design, simulate, and build prototypes.
• Analog for Xilinx FPGAs Solutions Guide (pdf) - Suggested power solutions for each Virtex and Spartan FGPA family as well as CoolRunner CPLDs with WEBENCH-enabled solutions highlighted for maximum ease-of-use.
• Power Management Home

Reference Designs:

• RD-155 -  LM20145 producing 2.5V, a common IO voltage, at 5A of load current from a 5V rail with 89% efficiency
• RD-128 -  LM25576 to create an intermediate bus supply rail of 5V from 6-42V.
• RD-164 -  LM3152 accepting 12V, a common supply rail, and producing 3.3V at 10A with 95% efficiency.
• RD-156 -  LM20242 accepting 12V, a common supply rail, and producing 3.3V at 2A of load current with 89% efficiency.
• RD-161 -  LP3906 multi-output device with a variety of output voltages ranging from 0.8V to 3.5V. The two onboard LDOs provide low noise supply rails.

LVDS & CML Signal Conditioners & SerDes

The newest Spartan-6 FPGAs now include high speed transceivers increasing their flexibility to meet designers' needs. National's signal conditioning products enable Spartan and Virtex FPGAs to extend their reach up to 100 meters of cable or up to 40” of FR4.

• LVDS & CML Home
• SerDes Home

Design Resources:

• DS64BR401 Evaluation Board - Mini SAS4X cable extender demonstration kit provides a complete cable extension solution using the DS64BR401 Quad Bi-directional Cable Extender.
• Top 10 Signaling Challenges - Webinar covers signal conditioning challenges in DVI, HDMI and PCIe applications.
• LVDS Owners Manual - Handbook for LVDS, CML, signal conditioning/equalization. Sources of jitter and cross talk as well as high-speed transmission line basics are covered.

For more Serial Digital Video (SDI) solutions see: SDI/Broadcast Video section.

Clock & Timing

National's clock and timing solutions include:

• Jitter Cleaners - LMK family of clock conditioners with jitter cleaning as low as sub-200-femtoseconds.
• PLLs - PLLatinum PLL and PLL+VCO solutions including the LMX2541 world's lowest noise integrated frequency synthesizer family.
• National Clock Design Tool - Helps you choose the right clocking solution and loop filter design based on application parameters.
• Clock Conditioner Owner's Manual (pdf) - A must for any designer involved with timing subsystems. It discusses jitter fundamentals and clocking applications.
• PLL Handbook - The popular industry reference book for PLL performance, design, and simulation.

Data Acquisition (ADC & DAC)

• Data Conversion Home
  • Gigasample ADCs
  • ≤ 500 MSPS ADCs
  • ≤ 1 MSPS ADCs
  • Low Power DACs
• WaveVision5 Software is is an easy-to-use data acquisition and analysis tool designed to help users evaluate National Semiconductor's high-speed ADCs.
• See also Gigasample Test & Measurement, Wireless Base Station, and precision Sensing & Detection applications.

Ethernet & Real Time Networking

Xilinx FPGAs integrate the Ethernet MAC and National's Ethernet PHY solutions complete the system. National's DP83640 is the world's only Ethernet PHY with integrated IEEE1588 PTP functionality.

• Real time Ethernet solutions - IEEE1588 PTP 10/100 PHY
• Ethernet Design Resource - Reference Designs, Models, Drivers and Eval Boards

JTAG Solutions

National's JTAG solutions facilitate remote and in-system test and FPGA reconfiguration and include embedded JTAG masters, JTAG bus port multiplexers and an analog voltage monitor with JTAG interface.

Sensing & Detection Solutions 

National's analog solutions support all key sensing applications. Precision amplifiers and data converters provide accuracy and speed to enable better process control and more uniform products, less fallout, and quicker response times.

Design Tools:

• Sensing & Detection Solutions block diagrams
• WEBENCH Sensor Designer supports pressure, thermocouple and photodiode sensors.

Serial Digital Interface (SDI) Solutions 

National's is a leader in SDI solutions with complete chipsets including cable drivers & equalizers, reclockers, SerDes, signal conditioning, HDMI cable extenders, and more.

Design Tools & Resources:

• SD303EVK/SD307EVK - LMH0303/LMH0307 triple-rate single/dual SDI cable driver with cable detect
• SDXILEVK - Triple-rate SDI & video clocking daughter card for Xilinx Spartan-3A/3E FPGAs
• ML571-1982CLK - High-Performance Video Clock Module for Xilinx Virtex-5 LXT FPGAs
• SDI Evaluation Boards - A complete list of National's SDI evaluation boards.
• SDI Technical Library - This invaluable resource includes lab reports, white papers and conference papers.

Gigasample Test & Measurement 

National's family of ultra high speed ADCs offer best in class performance at the lowest power consumption. The family offers both 8- and 10-bit ADCs at up to 3 GSPS speed.

• RD-143 Is an 8-bit 3 GSPS data acquisition reference design. It includes an onboard FPGA and local microcontroller to provide an interface to National Semiconductor's WaveVision software to allow data capture directly to a PC.
• ADC10D1000 Evaluation Board is a complete subsystem which features the ADC10D1000 and an onboard Virtex-4 FPGA for data buffering. Fully supported by National Semiconductor's WaveVision software to allow data capture directly to a PC.
• WaveVision5 Software is is an easy-to-use data acquisition and analysis tool designed to help users evaluate National Semiconductor's high-speed ADCs.

Base Station Solutions 

National's base station signal path solutions feature the world's highest performance 16-bit ADCs and include ADCs, high-speed amplifiers, jitter cleaners, PLLs, interface, and more.

Reference Designs:

• RD-179 - High-IF Sub-sampling Receiver Subsystem with large/small signal SNR of 71/72.7 dBFS and SFDR greater than 80/92 dBFS. Features the ADC16DV160 dual 16-bit, 160 MSPS ADC, LMH6517 DVA, and LMK04031B clock conditioner.
• RD-170 - The SP16130CH4RB Reference Board demonstrates a low IF receiver subsystem application with performance for a 52 MHz input signal of SNR = 75.8 dBFS and SFDR greater than 84 dBFS. It features the ADC16V130 and LMK04031.
• RD-147 - The ADC14DS105KARB is a low IF receiver subsystem reference design board demonstrates a low IF receiver subsystem with performance for a 40 MHz input signal of 73.3 dBFS and SFDR greater than 85 dBFS. If features the LMH6552, ADC14DS105 and LMK02000.
• RD-146 - This reference design implements a High IF Receiver circuit with performance for a 169 MHz input signal of 68.3 dBFS and SFDR of 77 dBFS. It features the LMH6515, ADC14V155 and LMK03001C