100 and 50 MHz Digital Waveform
Generator/Analyzers
NI 654x
• 100 MHz maximum clock rate
• Compatible with 5.0, 3.3, 2.5, or
1.8 V logic (software-selectable)
• 32 channels with per-channel
direction control
• 1, 8, or 64 Mb/channel
onboard memory
• Interactive waveform and script
editor software
• Synchronization and Memory Core
(SMC) for tight synchronization
with other SMC-based devices
NEW
Operating Systems
• Windows 2000/NT/XP
Recommended Software
• LabVIEW 7 Express or later
• LabWindows/CVI
Driver and Editing Software
(included)
• NI-HSDIO
• LabVIEW 7.1 Express VIs
• Script Editor
• Digital Waveform Editor
(included with 8 and 64
Mb/channel models only)
Product
NI 6542
NI 6541
Platform
PCI, PXI
PCI, PXI
Maximum
Channels
32
32
Rate (MHz)
100
50
Compatible
Logic Levels (V)
5.0, 3.3, 2.5, or 1.8
5.0, 3.3, 2.5, or 1.8
Memory (Mb/channel)
1, 8, or 64
1, 8, or 64
Scripting
Programmable
Data Delay
Table 1. NI 654x Specifications Overview
Description
The National Instruments 6542 and 6541 devices are 100 and 50 MHz
digital waveform generator/analyzers, respectively, for interfacing to
digital electronics. These modules feature 32 channels with per-
channel direction control and deep onboard memory with triggering
and pattern sequencing. Through the NI-HSDIO driver, you can
interface with 5.0, 3.3, 2.5, or 1.8 V logic. You can also use these devices
with the NI Digital Waveform Editor, an interactive software tool for
creating and editing 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 devices to build low-skew multichannel
systems for interfacing to high pin count digital ICs and electronics.
Create and Edit Patterns Interactively
with the Digital Waveform Editor
• Import existing waveforms into LabVIEW from VHDL simulation and
spreadsheet tools in Value Change Dump (.VCD) or ASCII formats
• Create new waveforms using built-in fill patterns
• Edit waveforms interactively in the user interface
• Link and loop created digital waveforms with the Script Editor
Ordering Information
NI PCI-6541
NI PXI-6541
NI PCI-6542
NI PXI-6542
1
Where
..............................................................778988-0M
..............................................................778952-0M
1
..............................................................778989-0M
..............................................................778953-0M
1
Design High-Density Interfaces
• Data delay for clock frequencies
≥25
MHz
• Data delay resolution of 0.4%
of clock period
• Internal or external sample or reference
clock sources
• ±600 ps channel-channel skew (typ)
• ±32 mA maximum DC drive strength
per channel (configured for 3.3 V logic)
• Multidevice synchronization with other
SMC-based modular instruments
Applications
Semiconductor
Mixed-signal design validation and test
Interfacing to digital electronics
Aerospace/Defense
Subsystem emulation
Communications
Multimedia chipset emulation
Medical Electronics
Emulation of IC communications
Consumer Electronics
CMOS and CCD imaging sensors
M is: 1 (1Mb/channel), 2 (8 Mb/channel), or 3 (64 Mb/channel)
Includes NI-HSDIO driver and Script Editor. The 8 and 64 Mb/channel models also
include the Digital Waveform Editor.
Software
NI Digital Waveform Editor ........................................778724-03
Cable
SHC68-C68-D2 ............................................................188142-01
Accessory
CB-2162 ........................................................................778592-01
SMB-2163 ......................................................................778747-01
BUY ONLINE!
Visit
ni.com/info
and enter pci6541, pci6542, pxi6541, pxi6542.
100 and 50 MHz Digital Waveform
Generator/Analyzers
Specifications
For detailed specifications, please visit ni.com/info and enter: pci6541, pci6542, pxi6541, pxi6542.
These specifications are valid for the following temperature ranges: PCI: 0 to 45 °C, PXI: 0 to 55 °C.
Triggers (inputs to the NI 654x)
Trigger types..................................................... Start Trigger, Pause Trigger, Script Trigger <0:3>
(Generation sessions only), Reference Trigger
(Acquisition sessions only)
Sources ............................................................ 1. PFI <0> (SMB Jack connectors)
2. PFI <1:3> (DDC connector)
3. PXI_TRIG<0:7> (PXI backplane, PXI only)
RTSI <0..7> (PCI only)
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)
Trigger detection .............................................. 1. Start Trigger (Edge detection: rising or falling)
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)
Minimum required trigger pulse width............ 40 ns
Destinations ..................................................... 1. PFI <0> (SMB Jack Connector)
2. PFI <1:3> (DDC Connector)
3. PXI_TRIG <0:7> (PXI Backplane)
RTSI <0..7> (PCI only)
Each of the Triggers can be routed to any of the 13
Destinations with the exception of Pause Trigger.
Pause Trigger can not be exported.
Channel Characteristics
Number of data channels................................. 32
Direction control of data channels .................. Per channel
Generation Signal Characteristics (data, DDC ClkOut, and PFI <0:3> channels)
All voltage ranges specified into 1 MΩ
Generation voltage families (V) ....................... 1.8, 2.5, 3.3 logic families (5 V compatible)
Generation signal type..................................... Single-ended
Generation voltage levels
Family
Settings (V)
1.8
2.5
3.3
5.0
Low Voltage Levels (V)
Typical
Max
0
0.1
0
0.1
0
0.1
0
0.1
High Voltage Levels (V)
Min
Typical
1.7
1.8
2.4
2.5
3.2
3.3
3.2
3.3
I=100 µA
Output impedance ............................................ 50
Ω
nominal at 25 °C
Maximum DC drive strength ............................ ±8 mA at 1.8 V
±16 mA at 2.5 V
±32 mA at 3.3 V
Channel power-up state................................... Drivers disabled, 10 kΩ input impedance
Acquisition Signal Characteristics (data, strobe, and PFI <0:3> channels)
Acquisition voltage families (V) ....................... 1.8, 2.5, 3.3, 5.0 logic families
Events (outputs from the NI 654x)
Event types ....................................................... Marker <0..3>, Data Active Event, Ready for Start Event
Destinations ..................................................... 1. PFI <0> (SMB Jack Connectors)
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 Data Active Event. Data Active Event
can only be routed to the PFI channels.
Acquisition voltage levels
Family
Settings (V)
1.8
2.5
3.3
5.0
Low Voltage Thresholds (V)
Max
0.45
0.75
1.0
1.0
High Voltage Thresholds (V)
Min
1.35
1.75
2.3
2.3
Miscellaneous
Onboard Clock characteristics (Only valid when PLL Reference Source is set to None)
Frequency accuracy .......................................... ±100 ppm (typical)
Temperature stability ....................................... ±30 ppm (typical)
Aging ................................................................ ±5 ppm first year (typical)
Input impedance............................................... High impedance (10 kΩ)
Timing Characteristics
Sample Clock
Sample clock sources....................................... 1. Onboard clock (internal VCXO with divider)
2. CLK IN (SMB)
3. PXI_STAR (PXI only)
4. STROBE (DDC Connector) – Acquisition only
On board clock frequency range ..................... NI 6541: 48 Hz to 50 MHz.
(Settable to 200 MHz / N; 4
≤
N
≤
4,194,304)
NI 6542: 48 Hz to 100 MHz.
(Settable to 200 MHz / N; 2
≤
N
≤
4,194,304)
Exported sample clock delay range ................. 0 - 1 sample clock periods for clock frequencies
≥
25 MHz
Exported sample clock delay resolution .......... 1/256 of sample clock period for clock frequencies
≥
25 MHz
Power Requirements
Typical ............................................................ 15 W
Maximum.......................................................... 20.5 W
Physical
Dimensions
PCI ............................................................ 12.6 cm by 35.5 cm (4.95 in. by 13.9 in.)
PXI ............................................................ Single 3U CompactPCI Slot. PXI Compatible
I/O Panel Connectors
Label
CLK IN
PFI 0
CLK OUT
Digital data and
Control (DDC)
Exported sample clock jitter (typical using onboard clock)
Period jitter
20 ps (rms)
Cycle-to-cycle jitter
35 ps (rms)
Generation Signal Characteristics (data, DDC Clk Out, and PFI <0:3> channels)
Data channel-to-channel skew ........................
Maximum data channel toggle rate ................
Data position modes ........................................
Generation data delay range ...........................
Generation data delay resolution ....................
±600 ps (typical across all data channels)
NI 6541: 25 MHz; NI 6542: 50 MHz
Rising edge, falling edge, delayed relative to sample clock
0 - 1 sample clock period for clock frequencies
≥
25 MHz
1/256 of sample clock period for clock frequencies
≥
25 MHz
External Function(s)
Sample Clock, External PLL
Reference Input
Events, Triggers
Exported Sample Clock,
Exported Reference Clock
Digital data channels, Exported
Sample Clock, STROBE, Events, Triggers
Connector Type
SMB jack
SMB jack
SMB jack
68 pin VHDCI
Environment
Operating temperature..................................... PCI: 0 to 45 °C
PXI: 0 to 55 °C in all NI PXI chassis except the following.
0 to 45 °C when installed in an NI PXI-1000/B and
PXI-101x chassis. (Meets IEC-60068-2-1 and IEC-60068-2-2)
Storage temperature ........................................ -20 to 70 °C
Relative humidity ............................................. 10 to 90% relative humidity, noncondensing
(meets IEC-60068-2-56)
Storage Relative humidity................................ 5 to 95% relative humidity, noncondensing
(meets IEC-60068-2-56)
Acquisition Signal Characteristics (data, strobe, and PFI <0:3> channels)
Channel-to-channel skew ................................ ±600 ps (typical across all data channels)
Acquisition timing delay range ........................ 0 - 1 sample clock periods for clock frequencies
≥
25 MHz
Acquisition timing delay resolution ................. 1/256 of sample clock period for clock frequencies
≥
25 MHz
Waveform Characteristics
Memory and Scripting
Onboard memory size
(assumes no scripting
instructions)
1 Mb/channel
(for generation sessions)
1 Mb/channel
(for acquisition sessions)
8 Mb/channel
(for generation sessions)
8 Mb/channel
(for acquisition sessions)
64 Mb/channel
(for generation sessions)
64 Mb/channel
(for acquisition sessions)
Compliance
Safety
NI 654x 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 3111-1, UL 61010B-1
CAN/CSA C22.2 No. 1010.1
Note: For full EMC compliance, you must operate this device with shielded cabling. In addition, all covers and
filler panels must be installed. See the Declaration of Conformity (DoC) for this product for any additional
regulatory compliance information. To obtain the DoC for this product, visit
ni.com/hardref.nsf
Generation modes
Waveform: Generate a single waveform once, N times, or continuously.
Scripted: Generate a simple or complex sequence of waveforms. 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.
National Instruments • Tel: (800) 433-3488 • Fax: (512) 683-9300 • info@ni.com • ni.com
2
NI Services and Support
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
.
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
.
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
.
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
.
Professional Services
Our Professional Services
Team is comprised of NI
applications engineers, NI
Consulting Services, and
a worldwide NI 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
.
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
.
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
.
ni.com •
(800) 433-3488
National Instruments • Tel: (512) 683-0100 • Fax: (512) 683-9300 • info@ni.com
© 2004 National Instruments Corporation. All rights reserved. CVI, LabVIEW, and ni.com are trademarks of
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