Datasheet

Mixed Domain Oscilloscopes — MDO4000 Series
Trigger System
Characteristi
c
Description
Main Trigger Modes
Auto, Normal, and Single
Trigger Coupling DC, AC, HF reject (attenuates >50 kHz), LF
reject (attenuates <50 kHz), noise reject (reduces
sensitivity)
Trigger Holdoff
Range
20nsto8s
Trigger Sensitivity
Characteristi
c
Description
Internal DC Coupled
1MΩ Path
(All models)
50 Ω Path
(MDO4054-X)
For 1 mV/div to 4.98 mV/div; 0.75 div from DC to
50 MHz, increasing to 1.3 div at rated bandwidth
For ≥5 mV/div; 0.4 div from DC to 50 MHz,
increasing to 1 div at rated bandwidth
50 Ω Path
(MDO4104-X
)
0.4 div from
DC to 50 MHz, increasing to 1 div at
rated bandw
idth
Trigger Lev
el Range
Characteristic Description
Any Channel ±8 divisions from center of screen
Line
Fixed at about 50% of line voltage
Trigger Frequency Readout
Provides 6-digit frequency readout of triggerable events.
Trigger Modes
Mode Description
Edge
Positive or negative slope on any channel. Coupling includes DC, AC, HF reject, LF reject, and noise reject
Sequence (B-trigger) Trigger Delay by Time – 4 ns to 8 s. Or Trigger Delay by Events – 1 to 4,000,000 events
Pulse Width
Trigger on width of positive or negative pulses that are >, <, =, or ≠ aspecified period of time (4 ns to 8 s)
Timeout
Trigger when no pulse is detected within a specified time (4 ns to 8 s)
Runt
Trigger on a pulse that crosses one threshold but fails to cross a second threshold before crossing the first again
Logic
Trigger when any logical pattern of channels goes false or stays true for specified period of time (4 ns to 8 s). Any input can be used as a clock to
look for t he pattern on a clock edge. Pattern (AND, OR, NAND, NOR) specified for all analog and digital input channels defined as High, Low, or
Don't Care
Setup and Hold Trigger on violations of both setup time and hold time between clock and data present on any of the input channels
Rise/Fall Time Trigger on pulse edge rates that are faster or slower than specified. Slope may be positive, negative, or either
Video
Trigger on all lines, odd, even, or all fields on NTSC, PAL, and SECAM video signals
Extended Video
(Optional)
Trigger on 480p/60, 576p/50, 720p/30, 720p/50, 720p/60, 875i/60, 1080i/50, 1080i/60, 1080p/24, 1080p/24sF, 1080p/25, 1080p/30, 1080p/50,
1080p/60, and custom bi-level and tri-level sync video standards
I
2
C
(Optional)
Tri
gger on Start, Repeated Start, Stop, Missing ACK, Address (7 or 10 bit), Data, or Address and Data on I
2
C buses up to 10 Mb/s
SPI
(Optional)
Tri
gger on SS active, MOSI, MISO, or MOSI and MISO on SPI buses up to 50 Mb/s
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