NORM/COMP MODES
The pulses of channels A and B may be of either polarity (i.e. positive or negative). In
addition, the NORM/COMP switches allow pulses to be inverted logically - the high and
low voltages can be swapped. This is illustrated below.
OUTPUT IMPEDANCE
The output impedance can set to be 1Ω or 50Ω. The 50Ω position is useful for driving
50Ω transmission lines since this output impedance will provide back-matching, which
suppresses transmission line reflections. Note however that when driving a 50Ω load
with the switch in the 50Ω position will reduce the output voltage by a factor of 2, due to
a voltage divider effect. The 1Ω position eliminates this voltage reduction.
21
Norm
0
+10V
Comp
0
+10V
Norm
-10V
0
Comp
-10V
0
Summary of Contents for AV-1023-C
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