SPECIFICATIONS
Model:
AVRK-3-B
1
Amplitude
2,3,8
:
(50Ω load required)
< 110 to 550 Volts
Rise time (20%-80%):
≤ 4 ns (for all amplitudes and pulse widths)
Fall time
9
(80%-20%):
At 110V
At 550V
At minimum PW:
≤ 6 ns
≤ 4 ns
At maximum PW:
≤ 15 ns
≤ 7 ns
Pulse width (FWHM):
6 – 35 ns
PRF:
1 Hz to 1 kHz
Required load impedance:
50 Ohms
7
Output impedance
5
:
Low (much less than 50 Ohms)
Polarity
4
:
Positive or negative or both (specify)
Propagation delay:
≤ 150 ns (Ext trig in to pulse out)
Jitter:
± 100 ps ± 0.03% of sync delay (Ext trig in to pulse out)
DC offset:
-OS option
6
: Apply required DC offset (± 50 Volts, 250 mA DC max)
to rear-panel solder terminals
Trigger modes:
Internal trigger, external trigger (TTL level pulse, > 10 ns, 1 kΩ input impedance),
front-panel “Single Pulse” pushbutton, or single pulse trigger via computer command.
Variable delay:
(sync out to main out)
0 to 1.0 seconds, for all trigger modes (including external trigger).
Sync output:
> +3 Volts, > 50 ns, will drive 50 Ohm loads
Gate input:
Synchronous or asynchronous, active high or low, switchable. Suppresses triggering when active.
Monitor output:
Included. Provides a 20 dB attenuated coincident replica
of the main output. Requires a 50 Ohm load, if used.
Connectors:
BNC
GPIB & RS-232 control
1
:
Standard on -B units.
Ethernet port, for remote
control using VXI-11.3, ssh,
telnet, & web:
Included. Recommended as a modern alternative to GPIB / RS-232.
See
http://www.avtechpulse.com/options/vxi
Settings resolution:
The resolution of the timing parameters (pulse width, delay, period) varies,
but is always better than 0.15% of (|set value| + 20 ns).
The amplitude resolution is < 0.1% of the maximum amplitude.
Settings accuracy:
Not specified. The pulse width setting experiences some thermal drift and interaction with the
amplitude setting. For this reason, the actual output characteristics should be verified by measuring
the main output or the monitor output. For high-accuracy applications requiring traceable calibration,
verify the output with a calibrated oscilloscope.
Power requirements:
100 - 240 Volts, 50 - 60 Hz
Dimensions (H x W x D):
100 mm x 430 mm x 375 mm (3.9” x 17” x 14.8”)
Rack-mount kit:
Optional. Add -R5 to the model number.
Temperature range:
+5°C to +40°C
1)
-B suffix indicates IEEE-488.2 GPIB and RS-232 control of amplitude, pulse width, PRF and delay. (See http://www.avtechpulse.com/gpib).
2)
For operation at amplitudes of less than 20% of full-scale, best results will be obtained by setting the amplitude near full-scale and using external
attenuators on the output.
3)
For analog electronic control (0 to +10V) of amplitude, suffix model number with -EA. Electronic control units also include the standard front-panel
controls.
4)
Indicate desired polarity by suffixing model number with -P or -N (i.e. positive or negative) or -PN for the dual-polarity option (one output with
switchable polarity).
5)
This is the input in series with the output, internally. Since the output impedance is not 50 Ohms, the load impedance must be 50 Ohms, or
transmission line reflections will occur.
6)
For DC offset option suffix model number with -OS.
7)
A 50 Ohm load is required. Other loads may damage the instrument. Consult Avtech ([email protected]) if you need to drive other load
impedances.
8)
The maximum amplitude may fall by up to 10% at minimum pulse width, as the rise and fall times become comparable to the pulse width.
9)
The fall time varies with amplitude (higher amplitudes produce faster fall times) and pulse width (wider pulse widths produce slower fall times).
These values are the limits for operation at minimum and maximum specified amplitudes and pulse widths. Fall times for other settings will lie
between these values.
8
Содержание AVRK-3-B
Страница 36: ...PCB 158R4 LOW VOLTAGE POWER SUPPLY...
Страница 37: ...PCB 284B HIGH VOLTAGE POWER SUPPLY...
Страница 38: ...PCB 216E OP AMP TWEAKS...
Страница 43: ...PERFORMANCE CHECKSHEET 43...