Tektronix PFG 5105, Instruction Manual

Page: 44 / 89

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Double Pulse Mode
When in double pulse mode, two other factors (Equa­
tions Three and Four) affect legal settings:
Equation Three:
dela y > width
Equation Four:
dela y > width + recover y time
Recover y time is determined b y pulse range as shown
in Table 2-7.
EXAMPLE S :
If width = 400 ns and dela y = 390 ns, a dela y �
width error will be returned.
If width = 400 ns and dela y = 41 O ns, then dela y
- width 1
o
ns. This is less than the recover y time
for a width of 400 ns listed in Table 2-7. Therefore,
a dela y :,; width + recover y time error will be
returned.
PF G 5105/5505 Instruction Manual
Operating Instructions
Table 2-7
MINIMUM RECOVERY TIME
W i d th Range Recovery Time
0.04 - 0.099 µs 40 ns
0.100 - 0.999
µs
50 ns
1.00 - 9.99 µs 200 ns
1 0.0 - 99.9 /lS 2.0 JlS
1 00 - 999 JtS 20 /lS
1.00 - 9.99 ms
200 JlS
10.0 - 99.9 ms 2.0 ms
Synthesizer
The s y nthesizer mode is available onl y on instruments
that include Option 02. The s y nthesizer outputs a
continuous waveform that is frequenc y -locked to an
internal quartz cr y stal. The displa y allows 4.5 digit
resolution.
2- 1 7