Datasheet

Chapter 5: Starter Kit Operation
5.2. TTL Pulse Generator (TPG)
The front and rear panels of the TPG are shown in figure 1.11; a detailed view of the
front panel is shown below in figure 5.3.
T
P
G
1
2
8
−
T
T
L
P
u
l
se
G
e
n
e
r
a
t
o
r
O
F
F
O
N
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o
w
e
r
0
.
2
t
o
2
.
2
µ
s
0
.
5
t
o
1
0
.
5
µ
s
5
t
o
1
0
5
µ
s
0
t
o
2
0
0
n
s
−
−
−
−
−
−
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−
−
P
e
r
i
o
d
−
−
−
−
−
−
−
−
−
−
D
u
r
a
t
i
o
G
a
t
e
I
N
T
r
i
g
O
U
T
O
u
t
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O
u
t
2
5
0
o
h
m
s
5
0
o
h
m
s
5
0
o
h
m
s
m
a
x
6
0
m
A
+
1
2
V
0
V
6
1
2
3
9
8
7
5
4
Figure 5.3.: TPG front panel.
Command description
The pulse duration can be set from 0 to 200ns and the interval between pulses from
200ns to 105 µs in 3 ranges, using the (2), (3) and (4) knobs shown in figure 5.3.
Note: the parameters should be adjusted using a scope following procedure 5.2.2.
(1) Power ON/OFF switch
(2) Pulse period fine potentiometer (10 turns)
(3) Pulse period range switch (3 positions)
(4) Pulse duration potentiometer (10 turns)
(5) BNC 50Ω TTL Output
(6) BNC 50Ω TTL Trig OUT
(7) BNC 50Ω TTL Trig IN
(8) BNC 50Ω TTL Gate IN
(9) CPL cable Lemo 00 12VDC output connector
60 QCL user’s manual v3.0