Series:5421 Series

  Product Description

  The PCI-5421 NI arbitrary waveform generator is a device used to generate arbitrary waveforms,with high accuracy and flexibility.

  feature

  Support the generation of complex waveforms with high resolution and precision

  Provides a wide range of waveform modulation options

  Provide multiple output channels for simultaneous waveform generation

  Equipped with waveform creation and control software

  The PCI-5421 NI Arbitrary Waveform Generator is a reliable and versatile device that allows users to generate complex waveforms for various applications.It provides precise control of waveform parameters and excellent signal quality.

  2 V p-p input 50Ωload

  Interpolation effective sampling rate up to 400 MS/s

  91 dBc close range SFDR and-62 dBc THD at 10 MHz

  8.32,256,or 512 MB onboard memory

  -148 dBm/Hz average noise density

  Optional 16 bit LVDS digital mode output

  The NI 5421 series is a 100 MS/s arbitrary waveform generator(AWG)that uses a compact 1-slot 3U PXI module or PCI board,with a 16 bit resolution and up to 256 MB of onboard memory.With the combination of high resolution and deep memory,users can generate long and accurate aperiodic waveforms,which are very suitable for a range of applications in communication,consumer electronics,scientific research,automotive,and military/aerospace fields.Due to the use of PCI bus in the NI 5421 series,the waveform download speed is 280 times faster than that of GPIB based AWG.With the NI Synchronous and Memory Core(SMC)architecture of the NI 5421 series,users can create excitation/response systems using digitizers and digital waveform generators/analyzers,or synchronize multiple arbitrary waveform generators to form a phase coherent multi-channel system.

  Analog output performance

  The NI 5421 series adopts a 100 MS/s,16 bit to analog converter(DAC),and a simple back-end analog design,with a close range spurious free dynamic range(SFDR)of 91 dBc and an average noise density of-148 dBm/Hz.These features make it very suitable for the most stringent frequency domain applications commonly found in communication.According to signal and application requirements,users can choose 2x,4x,or 8x interpolation to achieve an effective sampling rate of up to 400 MS/s.For demanding time-domain applications,the NI 5421 series has<5%pulse distortion and<1.0 ps rms jitter.

  The analog output path has a 43 MHz 7-pole elliptical analog filter that can suppress unwanted high-frequency signal images.Can users also choose between 50 or 75?Output impedance and change the output attenuation with three digit accuracy.In addition,direct paths can also be used to bypass output gain and attenuation.The direct path is very suitable for intermediate frequency(IF)applications,with a passband flatness of±0.25 dB in the range of 0 to 40 MHz.

  Shared waveform and instruction memory

  Due to the fact that the NI 5421 series is built on the SMC architecture,they use the same physical memory to store waveform data and sort instructions.Traditionally,the instruction memory of AWG is physically separated from the waveform data memory,usually only a few kB.The limited instruction memory of traditional AWG severely limits the maximum number of waveforms that can be sorted and the overall flexibility of AWG.The 8,32,or 256 MB onboard memory of the NI 5421 series stores data and instructions together,allowing for flexible use of the space required for sorting instructions.By sharing memory,memory space can be used for very long sequences with small waveforms,short sequences with very large waveforms,or a balance between the two.

  Trigger and Sort

  The NI 5421 series has four trigger modes for controlling the start and stop of waveform generation-single,continuous,step,and burst.By combining these triggering modes with the link and loop flexibility of the NI 5421 series,people can create complex waveforms.With a 256 MB memory configuration,over 1 million waveforms can be stored in memory and linked in any order.Each waveform segment can cycle up to 16777216 times or infinitely.Triggers can be received from software as well as front panel connectors,PXI trigger wires,PXI star triggers,or RTSI buses.

  LVDS digital mode output

  In addition to generating analog signals,the 32 and 256 MB configurations of the NI 5421 series can also generate Low Voltage Differential Signal(LVDS)digital modes.Due to its lower power consumption,lower electromagnetic interference,and strong noise resistance,LVDS is increasingly being used for digital signal transmission.The digital mode generated on the Digital Data and Control(DDC)front panel connector corresponds to the generated analog waveform and utilizes all linking,looping,triggering,and timing functions.The DDC I/O connector also provides a sampling clock to latch the digital mode.Alternatively,users can provide an external clock for the NI 5421 series through the DDC front panel connector.

  Timing and synchronization

  The NI 5421 series sampling clock has three modes-divided by N,high-resolution,and external.Simulate output jitter using an N-division sampling clock<1.0 ps rms with phase noise of-137 dBc/Hz(10 MHz carrier,10 kHz offset).The high-resolution sampling clock based on direct digital synthesis(DDS)has a sampling rate resolution of 1.06?Hz,providing excellent stability and sampling rate flexibility.The NI 5421 series can also import sampling clocks from CLK IN and DDC connectors,PXI star triggered,and PXI triggered buses or RTSI buses.In addition,you can also phase lock the NI 5421 oscillator to an external reference or PXI 10 MHz reference clock.

  By synchronizing,users can combine the NI 5421 with other modular instruments such as the NI 5122 digitizer and/or NI 655x digital waveform generator/analyzer to create a mixed signal testing system.People can also synchronize two or more NI 5421 modules to construct multi-channel phase coherent AWG,which is crucial for applications such as I and Q signal generation or anti lock braking system simulation.

  In order to trigger other instruments such as oscilloscopes,NI 5421 can generate marker event outputs.Tag events can be placed at different positions within each waveform segment.

  application area

  The PCI-5421 NI arbitrary waveform generator is commonly used in fields such as research and development,telecommunications,electronic testing,and signal processing.