National Instruments NI SHC68 User Manual

National Instruments NI SHC68 User Manual

Digital flying lead cable

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USER GUIDE
Digital Flying Lead Cable
Accessory for Single-Ended NI Digital Waveform Generator/Analyzers
Contents
The NI SHC68-H1X38 cable is a single-ended cable that breaks out each
NI digital waveform generator/analyzer signal into two 0.1 inch header
receptacles, one receptacle each for the signal and ground. The
NI SHC68-H1X38 cable provides an easy way to connect NI single-ended
high-speed digital waveform generator/analyzer devices to various types of
devices and circuits for interfacing, testing, or analysis.
This cable offers connectivity similar to that found on a typical logic
analyzer, so you can use it in logic analyzer-type applications. Unlike a
typical logic analyzer, however, this cable also allows for simultaneous
pattern generation and acquisition so that it can be used in
stimulus/response applications as well.
This guide explains how to set up and use the NI SHC68-H1X38 cable with
single-ended NI digital waveform generator/analyzer modules.
What You Need to Get Started ............................................................... 2
Related Documentation........................................................................... 2
Parts Locator ........................................................................................... 3
Connecting Signals ................................................................................. 4
Using Your Accessory ............................................................................ 6
Specifications .......................................................................................... 7

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Summary of Contents for National Instruments NI SHC68

  • Page 1 USER GUIDE Digital Flying Lead Cable Accessory for Single-Ended NI Digital Waveform Generator/Analyzers The NI SHC68-H1X38 cable is a single-ended cable that breaks out each NI digital waveform generator/analyzer signal into two 0.1 inch header receptacles, one receptacle each for the signal and ground. The NI SHC68-H1X38 cable provides an easy way to connect NI single-ended high-speed digital waveform generator/analyzer devices to various types of devices and circuits for interfacing, testing, or analysis.
  • Page 2: What You Need To Get Started

    What You Need to Get Started To set up and use the NI SHC68-H1X38 cable, you need the following items: ❑ Compatible NI digital waveform generator/analyzer, installed in a PXI chassis, compactPCI chassis, or PCI slot ❑ The documentation included with the digital waveform generator/analyzer and driver software Related Documentation The NI digital waveform generator/analyzer ships with several documents...
  • Page 3: Parts Locator

    NI SHC68-H1X38 cable. The lead pairs are shown in more detail in Figure 2. 1 Lead Pairs 2 Removable Sleeving 3 68-Pin VHDCI Connector Figure 1. NI SHC68-H1X38 Cable Parts Locator Diagram © National Instruments Corporation Digital Flying Lead Cable User Guide...
  • Page 4: Connecting Signals

    1 0.25 in. diameter 0.1 in. pitch 3 Microcoaxial wire compatible receptacles 4 Ground 2 Strain-relief and label Figure 2. Detailed Parts Locator Diagram for the Lead Pairs Connecting Signals Each DIO, PFI, and clock channel of the NI digital waveform generator/analyzer connects to a corresponding pair of leads on the NI SHC68-H1X38 cable.
  • Page 5 Each channel is split into a pair of leads. The lead attached with the black wire is the GND signal, which serves as the ground reference for that particular channel. © National Instruments Corporation Digital Flying Lead Cable User Guide...
  • Page 6: Using Your Accessory

    Using Your Accessory The NI SCH68-H1X38 cable breaks out every signal through a 50 Ω characteristic impedance microcoaxial cable, which is then split into the two leads with receptacles. This cable was designed for both acquisition and generation operations with your single-ended NI digital waveform generator/analyzer.
  • Page 7: Specifications

    Typical channel-to-channel skew... ±250 ps Typical characteristic impedance... 50 Ω Typical Input capacitance ...... 150 pF Physical Length ............ 1.5 m I/O Connectors ........One 68-pin DDC Connector 38 header-receptacle pairs (signal and ground) © National Instruments Corporation Digital Flying Lead Cable User Guide...
  • Page 8 Instruments trademarks. Other product and company names mentioned herein are trademarks or trade names of their respective companies. For patents covering National Instruments products, refer to the appropriate location: Help»Patents in your software, the patents.txt file on your CD, or ni.com/patents.

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