| Pulse
Characteristics (50Ω source and load impedance) |
|
Transition times (10%
to 90%) |
1ns
to 0.5ms in 6 ranges at amplitudes >1.8V and >4.5V respectively in
the two upper output ranges. Minimum value may increase to 1.2ns at
other amplitudes. Leading/trailing times are common on fastest
range, and independently variable over 1:10 ratio on other ranges. |
|
Overshoot and ringing |
±
10%
of pulse amplitude may increase to ±
10%
with amplitude vernier CCW. |
|
Preshoot |
±
5%
of pulse amplitude. |
|
Linearity |
Linearity
abberation for both slopes ±
5%
for transition times > 5ns |
| Output |
Maximum
amplitude is 5V from 50Ω into 50Ω.
Maximum output voltage is ±
5V
(amplitude + offset) |
| Offset |
±2V,
into 50Ω |
| DC-source
impedance |
50Ω
+ 5% - 10%. |
| Reflection
coefficient |
5%
in ECL setting, increasing to 15% in 5V range. |
| Output
protection |
Cannot
be damaged by open or short circuits or application |
| Attenuator |
Two
separate three step-attenuators reduce the outputs to 1V. Vernier is
common for both outputs and reduces the output to 0.4V minimum. A
further position provides ECL-compatible outputs (-0.9V to -1.7V typ. open
circuit). |
| Timing |
| Repetition
rate |
250MHz
to 1kHz in 6 ranges |
| Period
jitter |
<0.1%
of setting + 50ps |
| Delay |
2ns
- 0.5ms in 6 ranges plus typ. 17ns fxd. with respect to trigger
output. Duty cycle >50% |
| Delay
jitter |
<0.1%
of setting + 50ps |
| Double
pulse |
up
to 125MHz max. (simulates 250MHz) |
| Pulse
width |
2.4ns
to 0.5ms in 6 ranges |
| Width
jitter |
<0.1%
of setting + 50ps |
| Width
duty cycle |
>50% |
| Square
wave |
Delay
and double pulse are disabled, max. Rep. Rate 250MHz. Duty cycle is
50% ± 10%
up to 100MHz, 50% ± 15%
for > 100MHz |
| Trigger
output |
Negative
going Square Wave (50% duty cycle typ.) >500mV from 50Ω
into 50Ω. Internal 50Ω
can be switched off by slide-switch on PC-board. Amplitude up to 1V
into 50Ω up to 200MHz |
| Trigger
output protection |
Cannot
be damaged by short circuit or application of external ±200mA |
| External
Operating Modes |
| External
Input |
| Input
impedance |
50Ω
±10%. dc coupled. |
| Maximum
input |
±
6V |
| Trigger
level |
Adjustable
-1.5V to + 1.5V. |
| Slope
control |
Positive,
negative or manual selectable. In the manual position all ext.
functions can be controlled by push button. Button pushed in
simulates an "on-signal." |
| Sensitivity |
Sine-wave
>200mV p-p pulses >200mV |
| Repetition
rate |
0
to 250MHz. |
| External-Controlled
Modes |
| External
trigger |
There
is approximately 7ns delay between the external input and the trigger
output. Rep. rate is externally controlled (is triggered by external
signal). Trigger output provides the pulse-shaped input signal. |
| Synchronous
gating |
Gating
signal turns rep. rate generator on. Last pulse normal width even if
gate ends during pulse. |
| External
width |
Output
pulse width determined by width of drive input. Rep. rate and delay
are disabled. Trigger output provides shaped input signal. |
| General |
| Operating
temperature |
0°C
to 55°C. |
| Power |
100/120/220/240
Vrms; + 5%, -10%; 48-440Hz. 85VA max. |
| Weight |
net,
7.9kg (17.44lb). Shipping 8.9kg (19.63 lb). |
| Size |
133
mm H x 426 W x 345mm D (5.2" x 16.75" x 13.6"). |
