GENERAL INFORMATION
BASIC TEST ARRANGEMENT
The AVR-A-1-S2-C should be tested with a sampling oscilloscope with a bandwidth of
at least 2 GHz to properly observe the high-speed waveform. (The cables and
attenuators must also have a bandwidth of at least 2 GHz.) A typical test arrangement
is shown below:
The attenuators are required to prevent damage to the sampling oscilloscope. A 60 dB
attenuator with sufficient voltage rating should be used on the main output.
BASIC PULSE CONTROL
This instrument can be triggered by its own internal clock or by an external TTL trigger
signal. When triggered internally, two mainframe output channels respond to the trigger:
OUT and SYNC.
•
OUT. This is the main output. The maximum output voltage is 10V.
•
TRIG. The TRIG pulse is a fixed-width TTL-level reference pulse used to trigger
oscilloscopes or other measurement systems.
When the ADVANCE/DELAY switch is set to the ADVANCE mode, the TRIG output
precedes the main output. These pulses are illustrated below:
18
AVTECH
PULSER
MAIN OUTPUT
CONNECTOR
TRIG
CONNECTOR
AC
POWER
ALL CABLES: 50 OHM COAXIAL
SAMPLING
OSCILLOSCOPE
BW > 2 GHz
50 OHM INPUT
TRIG
CONNECTOR
60 dB
ATTENUATOR
Summary of Contents for AVR-A-1-S2-C
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