Datasheet
Mixed Domain Oscilloscopes — MDO4000 Series
Mode Description
MIL-STD-1553
(Optional)
Trigger on Sync, Word Type*
1
(Command, Status, Data), Command Word*
1
(set RT Address, T/R, Sub-address/Mode, Data Word Count/Mode Code,
and Parity individually), Status Word*
1
(set RT Address, Message Error, Instrumentation, Service Request Bit, Broadcast Command Received, Busy,
Subsystem Flag, Dynamic Bus Control Acceptance (DBCA), Terminal Flag, and Parity individually), Data Word (user-specified 16-bit data value),
Error (Sync, Parity, Manchester, Non-contiguous data), Idle Time (minimum time selectable from 4 µs to 100 µs; maximum time selectable from
12 µs to 100 µs; trigger on < minimum, > maximum, inside range, outside range). RT Address can be further specified to trigger on =, ≠,<,>,≤,
≥ a particular value, or inside or outside of a range.
I
2
S/LJ/RJ/TDM
(Optional)
Trigger on Word Select, Frame Sync, or Data. Data can be further specified to trigger on ≤,<,=,>,≥, ≠ aspecific data value, or inside or outside of
a range
Maximum data rate for I
2
S/LJ/RJ is 12.5 Mb/s
Maximum data rate for TDM is 25 Mb/s
Parallel
Trigger on a parallel bus data value. Parallel bus can be from 1 to 20 bits in size. Binary and Hex radices are supported
*
1
Trigger selection of Command Word will trigger on Command and ambiguous Command/Status words. Trigger selection of Status Word will trigger on Status and ambiguous Command/Status words.
Acquisition Modes
Mode Description
Sample
Acquire sampled values
Peak Detect
Captures glitches as narrow as 800 ps (1 GHz
models) or 1.6 ns (500 MHz models) at all sweep
speeds
Averaging
From 2 to 512 waveforms included in average
Envelope
Min-Max e nvelope reflecting Peak Detect data over
multiple acquisitions
Hi Res Real-time boxcar averaging reduces random noise
and increases vertical resolution
Roll
Scrolls waveforms right to left across the screen at
sweep speeds slower than or equal to 40 ms/div
Waveform Measurements
Measurement Description
Cursors Waveform
and Screen
Automatic
Measurements –
Time Domain
29, of which up to eight can be displayed
on-screen at any one time. Measurements include:
Period, Frequency, Delay, Rise Time, Fall Time,
Positive Duty Cycle, Negative Duty Cycle, Positive
Pulse Width, Negative Pulse Width, Burst Width,
Phase, Positive Overshoot, Negative Overshoot,
Peak-to-Peak, Amplitude, High, Low, Max, Min,
Mean, Cycle Mean, RMS, Cycle RMS, Positive
Pulse Count, Negative Pulse Count, Rising Edge
Count, Falling Edge Count, Area and Cycle Area
Automatic
Measurements –
Frequency Domain
3, of which one can be displayed on-screen at
any one time. Measurements include Channel
Power, Adjacent Channel Power Ratio (ACPR),
and Occupied Bandwidth (OBW)
Measurement
Statistics
Mean, Min, Max, Standard Deviation
Reference Levels User-definable reference levels for automatic
measurements can be specified in either percent
or units
Gating Isolat e the specific occurrence within an acquisition
to take measurements on, using either the screen
or waveform cursors
Waveform Histogram A waveform histogram provides an array of data
values representing the total number of hits
inside of a user-definedregionofthedisplay. A
waveform histogram is both a visual graph of the
hit distribution as well as a numeric array of values
thatcanbemeasured.
Sources – Channel 1, Channel 2, Channel 3,
Channel 4, Ref 1, Ref 2, Ref 3, Ref 4, Math
Types – Vertical, Horizontal
Waveform Histogram
Measurements
Waveform Count, Hits in Box, Peak Hits, Median,
Max, Min, Peak-to-Peak, Mean, Standard
Deviation, Sigma 1, Sigma 2, Sigma 3
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