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PXA125 Arbitrary Waveform Generator

Leading Features

  • 125 MS/s clock

  • 14-bit vertical resolution

  • 2 Meg memory depth

  • 1ppm clock stability

  • 10-digits sample clock frequency

  • PXI Form Factor single slot

  • Multiple instrument synchronization

  • Ultra fast waveform downloads using DMA

  • Extremely low phase NOISE carrier 

  • Free-running asynchronous internal trigger generator

  • Frequency agility - FSK, ramped FSK, sweep, FM

  • Sequence generator controls 128K segments and 4096 links

  • "ArbConnection" software for easy waveform creation and control

     File in PDF format


One-channel PXI Arbitrary Waveform Generator PXA125 with 2Mword memory

The PXA125 is a 125MS/s Arbitrary Waveform Generator that features a combination of arbitrary generator and synthesizer in a 1-slot 3U PXI form factor. Combined with its versatility, high resolution and wide frequency range the PXA125 offers the best timing arbitrary waveform generator within the compact, sturdy, modular architecture of PXI.

The PXA125 Arbitrary Waveform Generator is fully PXI compliant and based on the desktop computer industry standard PCI bus. The plug and play functionality of the PXA125 provides ease of set-up and use. It seamlessly integrates with LeCroy PXD family of digitizers from 150 MHz to 500 MHz and other PXI modules. Fast data transfer rates and improvements in test times are realized compared to traditional GPIB instruments. 

The PXA125 includes ArbConnection, a software package that combines three powerful tools: instrument control panel, waveform composer, and FM signal composer. The detailed front panel offers full control of the instrument while the waveform composer allows you to generate, edit and download complex waveforms. Finally, the FM signal composer allows you to generate and download complex modulating signals.

The LeCroy PXA125 provides a cost efficient, space efficient, high performance waveform generating solution for production test applications including:

  • Communications Test Systems

  • Aerospace and Defense

  • Automotive 

  • Analytical Instruments

  • Disk Drive Testing

Technical Specifications 

Multiple Instrument Synchronization
Multiple instruments can be connected together and synchronized to provide multi-channel synchronization with a phase offset of 0 to n points. Initial skew is <20 ns to the first master; 20 ns cumulative to additional slaves

SAMPLE CLOCK  
Internal  100mS/s to 125MS/s with 10-digit resolution (limited by 1μHz)
Accuracy  Standard reference <= 100ppm
Other reference: 1ppm clock
External 10MHz Reference Input  10MHz TTL, 50% ±2% duty cycle 
 
SAMPLE CLOCK MODULATION
The sample clock can be frequency modulated by internal waveforms (sine, square, triangle, ramp) or by downloaded waveforms.

FSK, ramped FSK, and sweep are also available.

Trigger Modes

Continuous
Triggered Internal or Eternal
Gated
Burst External
  
Trigger Sources  
External:  TTL, DC to 5 MHz ±slope
Internal:  100 mHz to 2MHz 
7-digit resolution: 
 
0.01% accuracy
STANDARD WAVEFORMS  
Waveforms: Sine, Triangle, Square, Pulse, Ramp, Sinc, Gaussian Pulse, Exponential decay/Rise Pulse, Noise, DC
Frequency Range: Waveform dependent
 
ARBITRARY WAVEFORMS  
2 Mpoints and 14-bit vertical resolution. Waveform Download rate: 5Mpoints/s. 
 
SEQUENCED ARBITRARY WAVEFORMS 
Segments linkable and repeatable to generate extremely long waveforms. Auto-advanced, mixed advance, single advance and stepped advance triggered externally, internally, or by soft trigger.
 
OUTPUTS  
Waveform Output
Front panel BNC off or on, 50Ω, ±1% protected against temporary short circuit.
80mV to 8V pk-pk into 50Ω with 3.5-digit resolution, 16V into open circuit.
Offset is attenuated with amplitude, in range 0 to ±3.6 V with resolution 22mV

Accuracy 
± 4 V window ± (1% of reading + 1% of amplitude + 2 mV)
± 400 mV window ± (1% of reading + 1% of amplitude + 200 μV)

Filters 25MHz and 50MHz, 7-pole elliptic square wave and pulse rise-time <10ns, aberration < 5% ± 10mV

SYNC/Marker Output  
In FM and sweep modes, this output generates a marker having properties similar to the sync pulse output. For all other functions and modes, this output generates sync pulse, which is synchronous with the output waveform.
Front panel BNC provides >2V into 50Ω, 4V nominal into 10KΩ, temporary short circuit protected. Position and width programmable with 4-point resolution.
  
  
Sine Output  
Front panel output SMB provides sine wave up to 100MHz, 1V into 50Ω, derived directly from the sample clock, even during FM, sweep FSK and ramped FSK.
 
GENERAL  
Power Requirements:  10W maximum
EMC Certification: 
CE marked
Dimensions: 
Single width, 3U high
Environmental
  Operating temperature 
 
0 oC - 50 oC
  Humidity (non-condensing)  5% to 95% RH at or below 30oC
Upper limit derates to:
75% RH above 30oC and
45% above 40oC
MTBF per MIL-HDBK-217E, 25 oC, Ground Benign

Ordering Information Product Code
PXA125 Arbitrary Waveform Generator  PXA125
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