MDO4000B Datasheet, PDF (2/28 Pages) List of Unclassifed Manufacturers – Mixed Domain Oscilloscopes

Datasheet
Connectivity
Two USB 2.0 host ports on the front panel and two on the rear panel
for quick and easy data storage, printing, and connecting a USB
keyboard
USB 2.0 device port on the rear panel for easy connection to a PC or
direct printing to a PictBridge^®-compatible printer
Integrated 10/100/1000BASE-T Ethernet port for network connection
and video out port to export the oscilloscope display to a monitor or
projector
Optional application support
Advanced RF triggering
Power analysis
Limit and mask testing
HDTV and custom video analysis
Vector signal analysis
The spectrum shown in the Frequency Domain view is taken from the
period of time indicated by the short orange bar in the time domain view –
known as the Spectrum Time. With the MDO4000B Series, Spectrum Time
can be moved through the acquisition to investigate how the RF spectrum
changes over time. And this can be done while the oscilloscope is live and
running or on a stopped acquisition.
Introducing the Mixed Domain Oscilloscope
The MDO4000B Series is the world's first oscilloscope with a built in
spectrum analyzer. This integration enables you to continue to use your
debug tool of choice, the oscilloscope, to investigate frequency domain
issues rather than having to find and re-learn a spectrum analyzer.
However, the power of the MDO4000B Series goes well beyond simply
observing the frequency domain as you would on a spectrum analyzer. The
real power is in its ability to correlate events in the frequency domain with
the time domain phenomena that caused them.
When both the spectrum analyzer and any analog or digital channels are
on, the oscilloscope display is split into two views. The upper half of the
display is a traditional oscilloscope view of the Time Domain. The lower half
of the display is a Frequency Domain view of the spectrum analyzer input.
Note that the Frequency Domain view is not simply an FFT of the analog or
digital channels in the instrument, but is the spectrum acquired from the
spectrum analyzer input.
Another key difference is that with traditional oscilloscope FFTs, you can
typically either get the desired view of the FFT display, or the desired view
of your other time domain signals of interest, but never both at the same
time. This is because traditional oscilloscopes only have a single
acquisition system with a single set of user settings such as record length,
sample rate, and time per division that drive all data views. But with the
MDO4000B Series, the spectrum analyzer has its own acquisition system
that is independent, but time correlated, to the analog and digital channel
acquisition systems. This allows each domain to be configured optimally,
providing a complete time correlated system view of all analog, digital, and
RF signals of interest.
The upper half of the MDO4000B Series display shows the Time Domain view of the
analog and digital channels, while the lower half shows the Frequency Domain view of
the spectrum analyzer channel. The orange bar - Spectrum Time - shows the period of
time used to calculate the RF spectrum.
Figures 1 through 4 show a simple everyday application – tuning of a PLL.
This application illustrates the powerful connection between the time
domain and the frequency domain that the MDO4000B Series provides.
With its wide capture bandwidth and ability to move Spectrum Time
throughout the acquisition, this single capture includes the same spectral
content as approximately 1,500 unique test setups and acquisitions on a
traditional spectrum analyzer. For the first time ever, correlating events,
observing interactions, or measuring timing latencies between the two
domains is exceptionally easy, giving you quick insight to your design’s
operation.
2 www.tektronix.com