User Manual

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17.4 External Sampling Terminal [EXT SMPL]
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16
17
18
19
5
6
7
8
9
1
0
1
1
1
2
1
3
1
4
A
HIGH
2.5 to 5.
0V
LOW
0to1.
0V
t
H
＞ min. 0.5μs
t
L
＞ min. 0.5μ
s
t ＞ min. 2μs
10 kΩ
5V
1kΩ
GND
EXT SMPL
t
t
H
t
L
150 pF
NOTE
1
7.4 External Sampling Terminal [EXT SMPL]
An external signal can be used to set the sampling rate.
Signal input method
・Short the terminal to ground, or input a pulse signal (High level: 2.5 to 5.0
V, Low level: 0 to 1.0 V) or a square wave signal.
・Triggering is activated at the rising edge.
Voltage range High level: 2.5 to 5.0 V, Low level: 0 to 1.0 V
Pulse width High, Low level: min. 0.5μs
Frequency 500 kHz max (MEM)
Maximum input voltage -5 to 10 V
External sampling can be used on the memory recorder and FFT. To do so,
set the time-axis range (memory recorder) or frequency range (FFT) to "EXT.".