Mixed Domain Oscilloscopes
MDO4000B Series Datasheet
Key performance specifications
4 analog channels
1 GHz, 500 MHz, 350 MHz, and 100 MHz bandwidth models
Up to 20 M record length on all channels
>340,000 wfm/s maximum waveform capture rate
16 digital channels
MagniVu
™
high-speed acquisition provides 60.6 ps fine timing
resolution
1 spectrum analyzer channel
9 kHz to 3 GHz or 9 kHz to 6 GHz frequency range models
Ultra-wide capture bandwidth ≥1 GHz
Introducing the world's first oscilloscope that includes a logic analyzer,
spectrum analyzer and protocol analyzer - all synchronized for an
integrated view. Although you can use the MDO4000B Series simply as a
mixed signal oscilloscope or as a spectrum analyzer, the real power comes
from the integration of the two. For the first time ever, you can see how
your designs perform in both the time and frequency domains on a single
instrument. View the RF spectrum at any point in time to see how it
changes over time or with device state. Solve the most complicated design
issues, quickly and efficiently, with an oscilloscope as integrated as your
design.
Standard passive voltage probes with 3.9 pF capacitive loading and
500 MHz or 1 GHz analog bandwidth
Key features
Mixed signal design and analysis
Automated triggering, decode, and search on serial and parallel
buses
Per-channel threshold settings
Multichannel setup and hold triggering
Spectral analysis
Dedicated front-panel controls for commonly performed tasks
Automated peak markers identify frequency and amplitude of
spectrum peaks
Manual markers
Trace types include: Normal, Average, Max Hold, and Min Hold
Detection types include: +Peak, -Peak, Average, and Sample
Spectrogram display for insight into slowly changing RF
phenomena
Automated measurements include: Channel Power, Adjacent
Channel Power Ratio (ACPR), and Occupied Bandwidth (OBW)
Trigger on RF power level
Mixed-domain and analysis
Time-correlated analog, digital, and RF signal acquisitions in a
single instrument
Wave Inspector
®
controls provide easy navigation of time-
correlated data from both the time and frequency domains
Amplitude, frequency, and phase vs. time waveforms derived from
spectrum analyzer input
Selectable spectrum time to see how RF spectrum changes over
time - even on a stopped acquisition
Winner of 13 industry awards
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Datasheet
Need more performance?
Need more bandwidth or record length?
Need jitter analysis?
Need to make serial bus compliance measurements?
Consider the MSO/DPO5000B Series oscilloscopes, with leading performance and
analysis for more advanced design verification.
www.tektronix.com/MSO5000
Optional serial triggering and analysis - serial protocol trigger, decode,
and search for I
2
C, SPI, USB, Ethernet, CAN, LIN, FlexRay,
RS-232/422/485/UART, MIL-STD-1553, and I
2
S/LJ/RJ/TDM
264 mm (10.4 inches) bright XGA color display
Small footprint and lightweight - Only 147 mm (5.8 inches) deep and
5 kg (11 lb.)
Connectivity
Two USB 2.0 host ports on the front panel and two on the rear panel
for quick and easy data storage 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
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Up to 2 GHz bandwidth
Up to 250 M record length
Automated jitter measurements standard
Over 20 optional measurement applications available
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.
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Mixed Domain Oscilloscopes — MDO4000B Series
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 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.
Figure 1 - Time and Frequency Domain view showing the turn-on of a PLL. Channel
1 (yellow) is probing a control signal that enables the VCO. Channel 2 (cyan) is probing
the VCO tune voltage. The SPI bus which is programming the PLL with the desired
frequency is probed with three digital channels and automatically decoded. Notice
Spectrum Time is placed after the VCO was enabled and coincident with the command
on the SPI bus telling the PLL the desired frequency of 2.400 GHz. Note that the RF is at
2.5564 GHz when the circuit turns on.
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.
Figure 2 - Spectrum Time is moved about 90 μs to the right. At this point, the spectrum
shows that the PLL is in the process of tuning to the correct frequency (2.400 GHz). It
has made it down to 2.4924 GHz.
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Datasheet
Built on the award-winning MSO4000B Series
of Mixed Signal Oscilloscopes
The MDO4000B Series provides you with the same comprehensive set of
features available in the MSO4000B Mixed Signal Oscilloscope Series.
This robust set of tools will help you speed through every stage of
debugging your design - from quickly discovering an anomaly and capturing
it, to searching your waveform record for the event and analyzing its
characteristics and your device's behavior.
Discover
To debug a design problem, first you must know it exists. Every design
engineer spends time looking for problems in their design, a time-
consuming and frustrating task without the right debug tools.
The industry’s most complete visualization of signals provides fast insight
into the real operation of your device. A fast waveform capture rate –
greater than 340,000 waveforms per second with FastAcq
™
– enables you
to see glitches and other infrequent transients within seconds, revealing the
true nature of device faults. A digital phosphor display with color- and
intensity-grading shows the history of a signal’s activity by using color or
intensity in areas of the signal that occur more frequently, providing a visual
display of just how often anomalies occur.
Figure 3 - Spectrum Time is moved another 160 μs to the right. At this point the spectrum
shows that the PLL has actually overshot the correct frequency and gone all the way
down to 2.3888 GHz.
Figure 4 - The PLL eventually settles on the correct 2.400 GHz frequency about 320 μs
after the VCO was enabled.
Discover
‒
Digital phosphor technology with FastAcq enables greater than
340,000 wfms/s waveform capture rate and real-time color-intensity grading.
Capture
Discovering a device fault is only the first step. Next, you must capture the
event of interest to identify root cause.
Accurately capturing any signal of interest begins with proper probing. Low-
capacitance probes are included with the oscilloscope, one for each analog
channel. These industry-first high-impedance passive voltage probes have
3.9 pF of capacitive loading to minimize the effect of the probe on your
circuit's operation, offering the performance of an active probe with the
flexibility of a passive probe.
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Mixed Domain Oscilloscopes — MDO4000B Series
Search
Finding your event of interest in a long waveform record can be time
consuming without the right search tools. With today’s record lengths
pushing beyond a million data points, locating your event can mean
scrolling through thousands of screens of signal activity.
The innovative Wave Inspector
®
controls give you the industry’s most
comprehensive search and waveform navigation capability. These controls
speed panning and zooming through your record. With a unique force-
feedback system, you can move from one end of your record to the other in
just seconds. User marks allow you to mark any location that you may want
to reference later for further investigation. Or, automatically search your
record for criteria you define. Wave Inspector will instantly search your
entire record, including analog, digital, serial-bus, and RF-versus-time data.
Along the way it will automatically mark every occurrence of your defined
event so you can quickly move between events.
A complete set of triggers - including runt, timeout, logic, pulse width/glitch,
setup/hold violation, serial packet, and parallel data - help you quickly find
your event. With up to a 20M point record length, you can capture many
events of interest, even thousands of serial packets, in a single acquisition
for further analysis while maintaining high resolution to zoom in on fine
signal details.
From triggering on specific packet content to automatic decode in multiple
data formats, the oscilloscope provides integrated support for the industry's
broadest range of serial buses - I
2
C, SPI, USB, Ethernet, CAN, LIN,
FlexRay, RS-232/422/485/UART, MIL-STD-1553, and I
2
S/LJ/RJ/TDM. The
ability to decode up to four serial and/or parallel buses simultaneously
means you gain insight into system-level problems quickly.
To further help troubleshoot system-level interactions in complex
embedded systems, the oscilloscope offers 16 digital channels in addition
to its analog channels. Since the digital channels are fully integrated into
the oscilloscope, you can trigger across all input channels, automatically
time correlating all analog, digital, serial, and RF signals. The MagniVu
™
high-speed acquisition on these channels enables you to acquire fine signal
detail (up to 60.6 ps resolution) around the trigger point for precision timing
measurements. MagniVu is essential for making accurate timing
measurements for setup and hold, clock delay, signal skew, and glitch
characterization.
Search
‒
RS-232 decode showing results from a Wave Inspector search for data value
"n". Wave Inspector controls provide unprecedented efficiency in viewing and navigating
waveform data.
Analyze
Verifying that your prototype’s performance matches simulations and meets
the project’s design goals requires analyzing its behavior. Tasks can range
from simple checks of rise times and pulse widths to sophisticated power
loss analysis and investigation of noise sources.
The MDO4000B Series offers a comprehensive set of integrated analysis
tools including waveform- and screen-based cursors, automated
measurements, advanced waveform math including arbitrary equation
editing, spectral math, FFT analysis, and trend plots for visually determining
how a measurement is changing over time. Specialized application support
for serial bus analysis, power supply design, and video design and
development is also available.
Capture
‒
Triggering on a specific transmit data packet going across a SPI bus. A
complete set of triggers, including triggers for specific serial packet content, ensures you
quickly capture your event of interest.
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