Manual

Characteristics
94 Two-channel digital Oscilloscopes
Technical characteristics (cont'd)
Horizontal system
DOX2025B
DOX2070B
DOX2100B
Real time sampling
frequency
Per channel : 500MSa/s
Single Channel: 1GSa/s
Two Channels: 500MSa/s
(when the time base is
faster than 100ns/div.)
Single Channel: 1GSa/s
Two Channels: 500MSa/s
(when the time base is
faster than 100ns/div.)
Equivalent time
sampling rate
50 GSa/s max.
50 GSa/s max.
50GSa/s max.
Display of the
measurements
MAIN, WINDOW, WINDOW ZOOM, ROLL, X-Y
Accuracy of the time
base
±100 ppm measurement of a 1ms time interval
Horizontal ranges
5ns/div. - 50s/div.
2,5ns/div. - 50s/div.
2,5ns/div. - 50s/div.
Scan mode
Scan: 100ms/div. - 50s/div. (1-2-5 staging)
Memory depth
Channel mode
Sampling rate
Normal Memory ()
Long Memory
DOX2070B & DOX2100B
only
Single Channel
1Gsa/s
40kpts
Not supported
Single Channel
500MSa/s or less
20kpts
2Mpts
Two Channels
500MSa/s or less
20kpts
1Mpts
DOX2025B
Single Chanel
500MSa/s
32kpts
Trigger system
Types of triggering
Edge, Pulse, Amplitude, Video, Slope, Alternative
Source of triggering
CH1, CH2, EXT, EXT/5, AC Line
Modes of Operation of the
triggering
Auto, Normal, Single
Scan mode (Roll) for ranges from 100ms/div. to 50s/div.
Trigger coupling
AC, DC, LF rej, HF rej
Hold-Off
10ns – 1.5s
Range of variation of the
triggering level
CH1, CH2: ±6 divisions from the centre of the screen
EXT: ±1.2V EXT/5: ±6V
Displacement of the trigger
Pre-trigger: (Memory depth/(2*sampling)) Deferred trigger: 260 div.
Accuracy of the triggering
level (Typical)
applicable to signals of
which the rise and fall times
are > 20ns
Internal: ±(0.2 div. × V/div.)(less than ±4 div. from the centre of the screen)
EXT: ±(6% of the value +40mV)
EXT/5: ±(6% of the value +200mV)
Triggering sensitivity
2mV to 10V/div ranges (1-2-5 staging):
1 div.: DC - 10MHz 1.5 divisions: 10MHz - max. of BW
EXT: 200mVpp DC - 10MHz 300mVpp 10MHz - max. BP
EXT/5: 1Vpp DC - 10MHz 1.5Vpp 10MHz - max. BP
Pulse triggering
(>, <, = ) Positive pulse width, (>, <, = ) Negative pulse width
Range of pulse widths 20ns - 10s
Video triggering
Signal formats supported: PAL/SECAM, NTSC
Trigger condition: odd frame, even frame, all lines, line no.
Slope triggering
(>, <, = ) Positive slope, (>, <, = ) Negative slope
Time: 20ns-10s
Alternate triggering
CH1 trigger type: Edge, Pulse, Amplitude, Video, Slope
CH2 trigger type: Edge, Pulse, Amplitude, Video, Slope