National Instruments NI PXI-562X User manual
Summary of NI PXI-562X
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Computer-based instruments ni pxi-562x user manual high-speed frequency-domain digitizer ni pxi-562x user manual july 2002 edition part number 322949c-01.
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Support worldwide technical support and product information ni.Com national instruments corporate headquarters 11500 north mopac expressway austin, texas 78759-3504 usa tel: 512 683 0100 worldwide offices australia 03 9879 5166, austria 0662 45 79 90 0, belgium 02 757 00 20, brazil 011 3262 3599, ca...
Page 3: Important Information
Important information warranty the ni pxi-5620 and the ni pxi-5621 is warranted against defects in materials and workmanship for a period of one year from the date of shipment, as evidenced by receipts or other documentation. National instruments will, at its option, repair or replace equipment that...
Page 4: Compliance
Compliance fcc/canada radio frequency interference compliance* determining fcc class the federal communications commission (fcc) has rules to protect wireless communications from interference. The fcc places digital electronics into two classes. These classes are known as class a (for use in industr...
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Canadian department of communications this class b digital apparatus meets all requirements of the canadian interference-causing equipment regulations. Cet appareil numérique de la classe b respecte toutes les exigences du règlement sur le matériel brouilleur du canada. Compliance to eu directives r...
Page 6: Contents
© national instruments corporation vii ni pxi-562x user manual contents about this manual conventions ...................................................................................................................Ix related documentation..............................................................
Page 7: About This Manual
© national instruments corporation ix ni pxi-562x user manual about this manual the ni pxi-562x is a single-channel high-speed digitizer module whose dynamic range and resolution are optimized for frequency-domain analysis applications in research, product design and validation, and manufacturing te...
Page 8: Related Documentation
About this manual ni pxi-562x user manual x ni.Com related documentation the following documents contain information that you might find helpful as you read this manual: • ni pxi-5620 specifications • ni pxi-5621 specifications • ni-scope user manual • spectral measurements toolset user guide.
Page 9: Taking Measurements
© national instruments corporation 1-1 ni pxi-562x user manual 1 taking measurements with the ni pxi-562x the ni pxi-5620 is a 64 ms/s, 14-bit frequency-domain digitizer module optimized for the best possible noise and distortion performance in a 5–25 mhz passband. It has a –3 db front-end bandwidth...
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Chapter 1 taking measurements with the ni pxi-562x ni pxi-562x user manual 1-2 ni.Com a. Insert your ni-scope cd into your cd drive. If installation does not start automatically, navigate to your cd drive and click setup.Exe . B. To install both the instrument driver and ade examples, select the pro...
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Chapter 1 taking measurements with the ni pxi-562x © national instruments corporation 1-3 ni pxi-562x user manual 3. Find the ni 562x in the list. Notice the device number assigned to your ni 562x. You need this device number to program your ni 562x. 4. Right-click the device name, and select proper...
Page 12: Safety Information
Chapter 1 taking measurements with the ni pxi-562x ni pxi-562x user manual 1-4 ni.Com for more detailed vi and function help, refer to the ni-scope vi reference help and the ni-scope function reference help, located at start»programs»national instruments»ni-scope. Safety information the following se...
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Chapter 1 taking measurements with the ni pxi-562x © national instruments corporation 1-5 ni pxi-562x user manual operate this product only at or below the installation category stated in the ni pxi-5620 specifications and the ni pxi-5620 specifications documents. The following is a description of i...
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Chapter 1 taking measurements with the ni pxi-562x ni pxi-562x user manual 1-6 ni.Com below is a diagram of a sample installation..
Page 15: Hardware Overview
© national instruments corporation 2-1 ni pxi-562x user manual 2 hardware overview this chapter provides an overview of the features and functionality of the ni 562x. How the ni 562x works a signal follows this path through the ni 562x to the host computer: 1. The signal enters the ni 562x through t...
Page 16: Connecting Signals
Chapter 2 hardware overview ni pxi-562x user manual 2-2 ni.Com connecting signals figure 2-2 shows the ni 562x front panel, which contains three connectors: two sma connectors and an smb connector. One of the sma connectors, input, is for attaching the analog input signal you want to measure. The se...
Page 17: Input Impedance
Chapter 2 hardware overview © national instruments corporation 2-3 ni pxi-562x user manual conditioning the signal—impedance, dither, gain, and ac coupling to minimize distortion, signals receive a minimal amount of conditioning. Gain and coupling are nonadjustable. The ni pxi-5620 is ac coupled, me...
Page 18: Incorporating The Ddc
Chapter 2 hardware overview ni pxi-562x user manual 2-4 ni.Com incorporating the ddc optionally, you can route the data through the ddc before storing it in onboard memory. The ddc is a digital signal processing (dsp) chip, the intersil hsp50214b. The first stage uses a digital quadrature mixer that...
Page 19: Block Diagram
Chapter 2 hardware overview © national instruments corporation 2-5 ni pxi-562x user manual block diagram the block diagram below illustrates the operation of the ni 562x. An explanation of some of these features follows. Figure 2-3. Ni 562x block diagram the digital downconverter is a digital signal...
Page 20: Other Features
Chapter 2 hardware overview ni pxi-562x user manual 2-6 ni.Com a free-running state, in which the acquisition clock is not synchronized to any external reference. The voltage controlled crystal oscillator (vcxo) is a 64 mhz clock. The trigger and clock routing area directs clock signals and triggers...
Page 21: Triggering
Chapter 2 hardware overview © national instruments corporation 2-7 ni pxi-562x user manual figure 2-4 shows a timing diagram of a multiple-record acquisition. Figure 2-4. Multiple-record acquisition timing diagram triggering you can externally trigger the ni 562x through the digital line, pfi1. You ...
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Chapter 2 hardware overview ni pxi-562x user manual 2-8 ni.Com synchronizing multiple pxi devices the ni 562x uses a pll to synchronize the 64 mhz sample clock to a 10 mhz reference clock. You can either supply the reference clock through the sma connector (ref clk in) on the front panel or use the ...
Page 23: Technical Support And
© national instruments corporation a-1 ni pxi-562x user manual a technical support and professional services visit the following sections of the national instruments web site at ni.Com for technical support and professional services: • support—online technical support resources include the following...
Page 24: Glossary
© national instruments corporation g-1 ni pxi-562x user manual glossary prefix meanings value p- pico 10 –12 n- nano- 10 –9 µ- micro- 10 – 6 m- milli- 10 –3 k- kilo- 10 3 m- mega- 10 6 g- giga- 10 9 symbols % percent + positive of, or plus – negative of, or minus / per ° degree ± plus or minus Ω ohm...
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Glossary ni pxi-562x user manual g-2 © national instruments corporation ac coupled allowing the transmission of ac signals while blocking dc signals adc analog-to-digital converter—an electronic device, often an integrated circuit, that converts an analog voltage to a digital number adc resolution t...
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Glossary © national instruments corporation g-3 ni pxi-562x user manual cmrr common-mode rejection ratio—a measure of an instrument’s ability to reject interference from a common-mode signal, usually expressed in decibels (db) coupling the manner in which a signal is connected from one location to a...
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Glossary ni pxi-562x user manual g-4 © national instruments corporation drivers software that controls a specific hardware instrument dsp digital signal processor e eeprom electrically erasable programmable read-only memory—rom that can be erased with an electrical signal and reprogrammed f fft fast...
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Glossary © national instruments corporation g-5 ni pxi-562x user manual input bias current the current that flows into the inputs of a circuit input impedance the measured resistance and capacitance between the input terminals of a circuit instrument driver a set of high-level software functions tha...
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Glossary ni pxi-562x user manual g-6 © national instruments corporation n noise an undesirable electrical signal—noise comes from external sources such as the ac power line, motors, generators, transformers, fluorescent lights, soldering irons, crt displays, computers, electrical storms, welders, ra...
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Glossary © national instruments corporation g-7 ni pxi-562x user manual r r resistor ram random-access memory random interleaved sampling (ris) method of increasing sample rate by repetitively sampling a repeated waveform real-time sampling sampling that occurs immediately record length the size of ...
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Glossary ni pxi-562x user manual g-8 © national instruments corporation shannon sampling theorem a theorem stating that a signal must be sampled at least twice as fast as the bandwidth of the signal to accurately reconstruct the signal as a waveform source impedance a parameter of signal sources tha...
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Glossary © national instruments corporation g-9 ni pxi-562x user manual v error voltage error vertical sensitivity the smallest voltage change a device can detect vi virtual instrument—(1) a combination of hardware and/or software elements, typically used with a pc, that has the functionality of a c...
Page 33: Index
© national instruments corporation i-1 ni pxi-562x user manual index a acquiring data multi-record acquisitions, 2-6 programmatically, 1-3 adc, 2-3 b basic signal flow (figure), 2-1 block diagram for ni pxi-562x digitizer, 2-5 c calibration, 2-7 conditioning signals ac coupling, 2-3 dither, 2-3 gain...
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Index ni pxi-562x user manual i-2 ni.Com gain, 2-3 input impedence, 2-3 help professional services, a-1 technical support, a-1 i incorporating ddc, 2-4 input impedence, 2-3 installing software and hardware, 1-1 instrument drivers, a-1 k knowledgebase, a-1 m mite interface, 2-6 multiple-record acquis...
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Index © national instruments corporation i-3 ni pxi-562x user manual t technical support, a-1 telephone technical support, a-1 tio (timing engine), 2-6 training customer, a-1 trigger and clock routing area, 2-6 triggering digital trigger sources (figure), 2-7 overview, 2-7 troubleshooting resources,...