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100 and 50 MHz, Programmable-Voltage Digital Waveform Generator/Analyzers Overview The National Instruments 6552 and 6551 are 100 and 50 MHz digital waveform generator/analyzers, respectively, for characterizing, validating, and testing digital electronics. These modules feature 20 channels with per-channel, per-cycle direction control and deep onboard memory with triggering and pattern sequencing. You can program the voltage levels on NI 655x devices with 10 mV resolution. You can use them with the NI Digital Waveform Editor, an interactive software tool for creating, editing, and importing digital waveforms. With the SMC, you can create mixed-signal test systems with digitizers, arbitrary waveform generators, and other digital waveform generator/analyzers, or you can synchronize multiple digital waveform devices to build high-channel-count test systems. Design High-Performance Tests For building high-performance stimulus-response systems, the NI 655x devices include:

  • A sophisticated timing engine to adjust for the timing parameters of the device under test
  • Programmable voltage levels for testing multiple devices or characterizing a single device under changing conditions
  • Per-cycle tristate for bidirectional communication
  • A versatile memory architecture for maximum flexibility of waveform and scripting memory The hardware architecture is designed to preserve high signal quality, and an eye diagram of the PXI-6552 generation is shown in Figure 1. You can use the internal clock or an external clock, such as from the NI PXI-5404, through the front panel. You can also shift the data generated, data acquired, and exported sample clock relative to the onboard clock for clock frequencies above 25 MHz, which is critical to adjust for propagation delays and setup-and-hold times in the device under test. Programmable voltage levels are needed when testing different devices or when characterizing how a given device performs under changing conditions. With NI 655x devices, the high and low levels for
  • 100 MHz maximum clock rate
  • -2.0 to 5.5 V programmable voltage levels in 10 mV steps
  • 20 channels with per-channel, per-cycle bidirectional control
  • 1, 8, or 64 Mb/channel onboard memory
  • Real-time hardware comparison of acquired data
  • Complex triggering and pattern sequencing
  • Interactive waveform and script editor software
  • Synchronization and Memory Core (SMC) for tight synchronization with other SMC-based devices Operating Systems
  • Windows 2000/NT/XP
  • LabVIEW Real-Time Recommended Software
  • LabVIEW
  • LabWindows/CVI
  • SignalExpress Driver and Editing Software (included)
  • NI-HSDIO driver
  • Script Editor
  • Digital Waveform Editor (included with 8 and

64 Mb/channel models)

  • NIST traceable
  • 2-year external calibration cycle NI 655x Product Platform Channels Maximum Clock Rate (MHz) Voltage Levels Memory (Mb/channel) Scripting (Linking/Looping) Programmable Data Delay Per-Cycle Tristate Hardware Comparison NI 6552 PCI, PXI 20 100 Programmable, 10 mV steps 1, 8, or 64 NI 6551 PCI, PXI 20 50 Programmable, 10 mV steps 1, 8, or 64

Table 1. NI 655x Selection Guide

Applications

Mixed-signal design validation and test Interfacing to digital electronics Aerospace/Defense Subsystem emulation Bit error rate tester (BERT) Communications Multimedia chipset emulation Consumer Electronics CMOS and CCD imaging sensors Digital display tests

100 and 50 MHz, Programmable-Voltage Digital Waveform Generator/Analyzers BUY ONLINE at ni.com or CALL (866) 265 9891 (U.S.) Specifications These specifications are valid for the following temperature ranges: PXI: 0 to 55 °C, PCI: 0 to 45 °C. Channel Characteristics Generation Signal Characteristics (data, DDC ClkOut, and PFI <0..3> channels) All voltage ranges specified into 1 M Ω Clk Out (sample clock only), and PFI channels -2 to 3.7 V (up to 50 MHz clock rate) -0.5 to 3.7 V (50 to 100 MHz clock rate; NI 6552 only) 400 mV to 4.2 V (50 to 100 MHz clock rate; NI 6552 only) Ω nominal at 25 °C ±600 mA maximum for all data, clock, and PFI channels Acquisition Signal Characteristics (data, strobe, and PFI <0..3> channels) and PFI channels applies when powered on and within valid voltage range Timing Characteristics Sample Clock 2. CLK IN (SMB jack connector) 3. PXI_STAR (PXI backplane; PXI only) 4. STROBE (DDC Connector) – Acquisition only ≤ N ≤ 4,194,304) NI 6552: 48 Hz to 100 MHz (settable to 200 MHz/N; 2 ≤ N ≤ 4,194,304) Exported Sample Clock Jitter (typical using onboard clock) Period jitter Cycle-to-cycle jitter 20 ps (rms) 35 ps (rms)

100 and 50 MHz, Programmable-Voltage Digital Waveform Generator/Analyzers BUY ONLINE at ni.com or CALL (866) 265 9891 (U.S.) Generation Signal Characteristics (data, DDC Clk Out, and PFI <0..3> channels) ±900 ps (maximum across all data channels) ≥25 MHz Acquisition Signal Characteristics (data, strobe, and PFI <0..3> channels) ±900 ps (maximum across all data channels) Waveform Characteristics Triggers (inputs to the NI 655x) Reference Trigger (acquisition sessions only) Multirecord Advance Trigger (acquisition sessions only) 2. PFI <1..3> (DDC connector) 4. PXI_STAR (PXI backplane, PXI only) 5. Pattern match (acquisition sessions only) 6. Software (user function call) 7. Disabled (do not wait for a trigger) 2. Pause Trigger (level detection: high or low) 3. Script Trigger <0..3> (edge detection: rising or falling, Level detection: high or low) 4. Reference Triggers (edge detection: rising or falling) 5. Advance Trigger (edge detection) 2. PFI <1..3> (DDC connector) Each of the triggers can be r outed to any of the 13 destinations except the pause trigger cannot be expor ted. Memory and Scripting Onboard memory size (assumes no scripting instructions)

1 Mb/channel

(for generation sessions)

8 Mb/channel

(for generation sessions)

64 Mb/channel

(for generation sessions) (for acquisition sessions) (for acquisition sessions) (for acquisition sessions) Generation Modes Waveform: Generate a single waveform once, N times, or continuously. Scripted: Generate a simple or complex sequence of wavefor ms. Use scripts to describe the waveforms to be generated, the order in which the waveforms are generated, how many times the waveforms are generated, and how the device responds to script triggers.

100 and 50 MHz, Programmable-Voltage Digital Waveform Generator/Analyzers BUY ONLINE at ni.com or CALL (866) 265 9891 (U.S.) Events (outputs from the NI 655x) 2. PFI <1..3> (DDC connector) 3. PXI_TRIG <0..7> (PXI backplane) Each of the events can be routed to any of the destinations with the exception of the Data Active event. The Data Active event can only be routed to the PFI channels. Miscellaneous Onboard Clock Characteristics (only valid when PLL reference source is set to “None”) Power Requirements Physical Environment in an NI PXI-1000/B and PXI-101x chassis (meets IEC-60068-2-1 and IEC-60068-2-2). PCI: 0 to 45 °C Certifications and Compliance Safety NI 655x devices meet the requirements of the following standards for safety and electrical equipment for measurement, control, and laboratory use: IEC 61010-1, EN 61010-1, UL 61010B-1, CAN/CSA C22.2 No. 61010-1 EN 61326:1997 + A2:2001, Table 1, CE, C-Tick, and FCC Part 15 (Class A) Compliant I/O Panel Connectors Label External Function(s) Connector Type CLK IN Sample Clock, External PLL Reference Input SMB jack PFI 0 Events, Triggers SMB jack CLK OUT Exported Sample Clock, Exported Reference Clock SMB jack Digital Data and Control (DDC) Digital Data Channels, Exported Sample Clock, STROBE, Events, Triggers 68-pin VHDCI

NI has the services and support to meet your needs around the globe and through the application life cycle – from planning and development through deployment and ongoing maintenance. We offer services and service levels to meet customer requirements in research, design, validation, and manufacturing. Visit ni.com/services. Training and Certification NI training is the fastest, most certain route to productivity with our products. NI training can shorten your learning curve, save development time, and reduce maintenance costs over the application life cycle. We schedule instructor-led courses in cities worldwide, or we can hold a course at your facility. We also offer a professional certification program that identifies individuals who have high levels of skill and knowledge on using NI products. Visit ni.com/training. Professional Services Our Professional Services Team is comprised of NI applications engineers, NI Consulting Services, and a worldwide National Instruments Alliance Partner program of more than 600 independent consultants and integrators. Services range from start-up assistance to turnkey system integration. Visit ni.com/alliance. OEM Support We offer design-in consulting and product integration assistance if you want to use our products for OEM applications. For information about special pricing and services for OEM customers, visit ni.com/oem. Local Sales and Technical Support In offices worldwide, our staff is local to the country, giving you access to engineers who speak your language. NI delivers industry-leading technical support through online knowledge bases, our applications engineers, and access to 14,000 measurement and automation professionals within NI Developer Exchange forums. Find immediate answers to your questions at ni.com/support. We also offer service programs that provide automatic upgrades to your application development environment and higher levels of technical support. Visit ni.com/ssp. Hardware Services NI Factory Installation Services NI Factory Installation Services (FIS) is the fastest and easiest way to use your PXI or PXI/SCXI combination systems right out of the box. Trained NI technicians install the software and hardware and configure the system to your specifications. NI extends the standard warranty by one year on hardware components (controllers, chassis, modules) purchased with FIS. To use FIS, simply configure your system online with ni.com/pxiadvisor. Calibration Services NI recognizes the need to maintain properly calibrated devices for high-accuracy measurements. We provide manual calibration procedures, services to recalibrate your products, and automated calibration software specifically designed for use by metrology laboratories. Visit ni.com/calibration. Repair and Extended Warranty NI provides complete repair services for our products. Express repair and advance replacement services are also available. We offer extended warranties to help you meet project life-cycle requirements. Visit ni.com/services. SERVICE NEEDS © 2005 National Instruments Corporation. All rights reserved. CVI, LabVIEW, National Instruments, National Instruments Alliance Partner, NI, ni.com, RTSI, SCXI, and SignalExpr ess ar e trademarks of National Instruments. Other product and company names listed are trademarks or trade names of their respective companies. A National Instr uments Alliance Par tner is a business entity independent fr om NI and has no agency , partnership, or joint-venture relationship with NI. 2005-5822-101 National Instruments • info@ni.com ni.com • (800) 813 3693