
Using the OSICS T100 Module
OSICS User Manual
195
Figure 150: Resulting Diode Current with External Analog Modulation Source
If the voltage applied to the SMB input is an AC signal with no DC component and
with peak-to-peak amplitude is V
pp
, the above condition becomes:
V
pp
< 2 x R
internal
(I
max
- I
bias
)
V
pp
< 2 x R
internal
(I
bias
)
I
bias
t
I
bias
t
V
in
t
I
diode
I
diode
I
bias
Diode modulated current
Current set on OSICS
without modulation
Input modulated
current
I
max
I
A
I
B
I
A
<
I
max
I
B
>
0
0