Characteristics and Specifications
3
U2701A/U2702A Modular Oscilloscopes User’s Guide
83
Trigger system
Sources
Ch 1, Ch 2, Ext (not applicable for TV trigger)
Selections
Edge, pulse width, TV
Edge
Triggers on a rising or falling edge, alternating or either edge of any source
Pulse Width
Triggers on a pulse width greater than, equal to, or less than a specified time limit, with
time limits ranging from 16 ns to 10 s.
Minimum lowerlimit: 8 ns
Minimum upperlimit: 16 ns
Maximum pulse width setting: 10 s
TV
Triggers on one of three standard television waveforms: NTSC, PAL, SECAM
TV trigger sensitivity: 0.6 division of sync signal. Modes supported include Field 1, Field
2, all fields, or any line within a field.
AutoScale
Single button automatic setup of all channels
Oscilloscope channel triggering
Range (internal)
±
4 div from center screen
Coupling
AC (< 15 Hz)
LF reject (~ 35 kHz)
HF reject (~ 35 kHz)
External (EXT) triggering
Input impedance
1 M
Ω
:
≈
16 pF
Maximum input
CAT I 30 Vrms, 42 Vpk
Range
DC coupling: trigger level
±
1.25 V and
±
2.5 V
EXT trigger pulse width
> 2.5 ns
Trigger Level Sensitivity
For
±
1.25 V range setting:
DC to 100 MHz: 100
µ
V
> 100 MHz: 200
µ
V
For
±
2.5 V range setting:
DC to 100 MHz: 250
µ
V
> 100 MHz: 500
µ
V
U2700A_Modular_Scope.book Page 83 Tuesday, May 6, 2008 9:32 AM
