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PXI-665X

型号：

PXI-665X

描述：

PXI和PXI Express定时与同步控制[ PXI and PXI Express Timing and Synchronization Control ]

品牌：

NI[ National Instruments ]

页数：

4 页

PDF大小：

673 K

下载PDF手册
PXI and PXI Express Timing and Synchronization Control  
NI PXI-665x, NI PXIe-6672  
• Works with all PXI and PXI Express  
modules  
• Software trigger generation  
• Frequency measurement capabilities  
• Multichassis PXI synchronization  
• Onboard routing of internal and external  
clock and trigger signals  
Operating Systems  
• Windows Vista/XP  
• LabVIEW Real-Time  
• PXI slot 2 star trigger controller (PXI-665x)  
Recommended Software  
• PXI Express system timing slot star  
trigger controller (NI PXIe-6672)  
• LabVIEW  
TM  
• Onboard high-stability references  
• OCXO, 50 ppb (PXI-6653)  
• TCXO, 1 ppm (PXI-6652 and  
NI PXIe-6672)  
• LabWindows /CVI  
Driver Software (included)  
• NI-Sync  
• Reference clock import and  
export with PLL capabilities  
• DC to 105 MHz, high-resolution  
DDS clock generation  
>> For complete specifications, see the NI PXI-665x and the  
NI PXIe-6672 user manuals at ni.com/manuals.  
Overview and Applications  
PXI_CLK10_IN  
PXI_CLK10  
AC Coupled  
Clock Detector  
CLKIN  
The National Instruments PXI-665x and NI PXIe-6672 timing and  
synchronization control modules use the trigger bus, star trigger,  
and system reference clock features of PXI to implement advanced  
multimodule or multichassis synchronization. You can vastly improve  
the accuracy of measurements, implement advanced triggering  
schemes, or synchronize multiple modules and/or multiple chassis  
to act as a single system for high-channel-count applications.  
PLL  
OCXO (6653)  
TCXO (6652)  
OCXO  
Calibration  
DAC  
OCXO/TCXO  
Clock  
CLKOUT  
DDS  
DDS Clock  
Driver/  
Comparator  
PFI 0  
PFI 1  
PFI 2  
PFI 3  
PFI 4  
PFI 5  
PXI_STAR<0...12>  
PXI_TRIG<0...7>  
CLOCK and  
TRIGGER  
Routing  
PFI 0  
Threshold  
DAC  
Driver/  
Comparator  
NI PXI-6651 NI PXI-6652  
Slave Module Master Module Master Module Master Module  
NI PXI-6653 NI PXIe-6672  
Features  
PFI 1  
Threshold  
DAC  
Front Panel Connectivity  
CLK10 in  
Driver/  
Comparator  
PCI Interface  
ꢀ
ꢀ
ꢀ
ꢀ
ꢀ
PFI 2  
Threshold  
DAC  
CLK10 out  
–
ꢀ
ꢀ
General-purpose PFI lines  
2 SMB  
6 SMB  
6 SMB  
6 SMB  
Driver/  
Comparator  
Programmable voltage  
threshold  
ꢀ
ꢀ
ꢀ
ꢀ
PFI 3  
Threshold  
DAC  
Trigger Routing  
Driver/  
Comparator  
Star trigger source  
(PXI_STAR)  
PXI trigger bus (PXI_TRIG)  
ꢀ
ꢀ
ꢀ
ꢀ
ꢀ
ꢀ
ꢀ
ꢀ
PFI 4  
Threshold  
DAC  
Driver/  
Comparator  
Onboard Clock Sources  
10 MHz timebase  
DDS programmable clock  
PFI 5  
Threshold  
DAC  
–
–
TCXO (1 ppm) OCXO (50 ppb) TCXO (1 ppm)  
DC to 105 MHz DC to 105 MHz DC to 105 MHz  
Figure 1. Block Diagram of PXI-6652 and PXI-6653 Master Modules  
Table 1. NI PXI-665x and NI PXIe-6672 Features  
PXI and PXI Express Timing and Synchronization Control  
Star Trigger Bus  
10 MHz  
Clock  
Local  
Bus  
132 MB/s, 33 MHz, 32-Bit PCI Bus  
PXI Trigger Bus  
Figure 4. Diagram of Synchronization Features in the PXI Backplane  
• Star trigger (PXI_STAR) – 13 or 17 equal-trace-length, point-to-point  
lines for providing low-skew (<1 ns) trigger or clock signals from slot 2  
to slots 3 through 15 in a PXI chassis or the system timing slot to  
slots 2 through 17 in a PXI Express chassis.  
• Trigger bus (PXI_TRIG) – Eight bused TTL lines for general-purpose  
routing of triggers, clocks, and handshaking signals.  
• 10 MHz clock (PXI_CLK10) – For improved accuracy, capable devices,  
such as the NI PXI-5xxx modular instruments, can phase-lock to this  
high-accuracy low-jitter 10 MHz reference clock.  
Figure 2. Block Diagram of NI PXIe-6672 Master Module  
PXI Backplane Overview  
PXI-665x and NI PXIe-6672 modules provide full control of the following  
timing and synchronization features of the PXI and the PXI Express  
backplane, respectively.  
To act as a PXI star trigger controller or to provide a high-accuracy  
10 MHz reference clock, a PXI-665x module must be installed in slot 2  
of the PXI chassis, as shown in Figure 4, and the NI PXIe-6672 must be  
installed in the system timing slot of the PXI Express chassis.  
High-Stability 10 MHz Timebase  
When installed in slot 2 of a PXI chassis, the PXI-6652 and PXI-6653  
modules can override the built-in 10 MHz reference clock on a PXI  
chassis, and when installed in the system timing slot of a PXI Express  
chassis, the NI PXIe-6672 can override the built-in 10 MHz reference  
clock on a PXI Express chassis. Typically, most chassis provide a 10 MHz  
reference clock with 25 ppm accuracy (10 MHz 250 Hz). This accuracy is  
improved to 1 ppm with the PXI-6652 and NI PXIe-6672, and to 50 ppb  
with the PXI-6653. Many modules, such as the PXI-5xxx modular  
instruments, have phase-locked-loop (PLL) circuitry to synchronize with  
the 10 MHz reference clock.  
PXI_CLK10_IN  
AC Coupled  
CLKIN  
Clock Detector  
PXI_STAR  
<0...12>  
Driver/  
PFI 0  
Comparator  
CLOCK and  
PFI 0  
Threshold  
DAC  
TRIGGER  
Routing  
PXI_TRIG<0...7>  
Driver/  
Comparator  
PFI 1  
PFI 1  
Threshold  
DAC  
PCI Interface  
Figure 3. Block Diagram of PXI-6651 Slave Module  
BUY ONLINE at ni.com or CALL 800 813 3693 (U.S.)  
2
PXI and PXI Express Timing and Synchronization Control  
High-Resolution DDS Clock  
Multichassis Synchronization  
The onboard direct digital synthesis (DDS) clock of the PXI-6652,  
PXI-6653, and NI PXIe-6672 modules provides an extremely high-  
resolution programmable clock source that can generate clocks from  
DC to 105 MHz in frequency with <1.1 µHz (PXI-6653 and PXI-6652)  
or <0.075 Hz (NI PXIe-6672) resolution. Use this clock as a common  
timebase for data acquisition modules.  
Using a combination of master PXI-6652 and PXI-6653 modules with  
slave PXI-6651 modules, you can tightly synchronize multiple PXI chassis,  
and using a combination of NI PXIe-6672 modules, you can tightly  
synchronize multiple PXI Express chassis. With these modules, you can  
create very high-channel-count synchronized systems for data  
acquisition, control, and instrumentation.  
NI-Sync Software  
The included NI-Sync driver software provides powerful and easy-to-  
use control of PXI-665x and NI PXIe-6672 modules. You can use NI  
application development environment (ADE) software such as  
LabVIEW or LabWindows/CVI, or other ADEs such as Visual C/C++ for  
programming these modules. For example programs specific to NI-Sync,  
please visit ni.com/examples.  
Figure 5. The NI-Sync driver software provides an easy-to-use interface to PXI-665x  
and NI PXIe-6672 modules.  
Ordering Information  
Figure 6. In this example, three PXI chassis containing 13 PXI-4472 eight-channel  
102.4 kS/s simultaneous-sampling dynamic signal acquisition modules are synchronized.  
The result is a 312-channel synchronized acquisition system.  
NI PXI-6653 (Master, OCXO)..................................................778715-01  
NI PXI-6652 (Master, TCXO)..................................................778726-01  
NI PXI-6651 (Slave)................................................................778725-01  
NI PXIe-6672 (Master, TCXO)................................................780063-01  
>> For complete specifications, see the NI PXI-665x and the  
NI PXIe-6672 user manuals at ni.com/manuals.  
Cables  
SMB-210................................................................................188858-01  
Dual SMB Plug to Dual SMB Plug Coax, 50 Ω, 1 m  
SMB-200................................................................................188859-01  
SMB Plug to SMB Plug Coax, 50 Ω, 1 m  
BUY NOW!  
For complete product specifications, pricing, and accessory  
information, call 800 813 3693 (U.S.) or go to ni.com/pxi.  
BUY ONLINE at ni.com or CALL 800 813 3693 (U.S.)  
3
NI Services and Support  
NI has the services and support to meet  
Local Sales and Technical Support  
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.  
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  
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.  
that identifies individuals who have high levels of skill and knowledge on Trained NI technicians install the software and hardware and configure  
using NI products. Visit ni.com/training.  
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 NI Professional Services team is composed of NI applications  
and systems engineers and a worldwide National Instruments Alliance  
Partner program of more than 600 independent consultants and  
integrators. Services range  
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.  
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.  
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.  
ni.com • 800 813 3693  
*351517A-01*  
351517A-01  
2007-8957-501-101-D  
National Instruments • info@ni.com  
© 2007 National Instruments Corporation. All rights reserved. CVI, LabVIEW, National Instruments, National Instruments Alliance Partner, NI, ni.com, and SCXI are trademarks of National  
Instruments. The mark LabWindows is used under a license from Microsoft Corporation. Other product and company names listed are trademarks or trade names of their respective companies.  
A National Instruments Alliance Partner is a business entity independent from NI and has no agency, partnership, or joint-venture relationship with NI.  
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