Trigger Operation Characteristics; Trigger, Gate, And Burst Characteristics - Tabor Electronics 5064 User Manual

Trigger operation
Characteristics
Trigger, Gate, and
Burst
Characteristics
2074 Run
Mode
Triggered
Gated
Burst
This tests the operation of the trigger circuit. It includes tests for the
triggered, gated and counted bursts run modes. It also tests the
operation of the trigger advance options, the delayed trigger and re-
trigger functions, as well as the trigger input level and slope sensitivity.
The run modes are common to all channels however, each channel
has its own trigger circuit and therefore, each channel must be tested
separately.
Equipment: Oscilloscope, function generator, counter
Preparation:
1. Configure the Oscilloscope follows:
Termination:
Setup:
2. Connect 2074 Channel outputs to the oscilloscope input
3. Configure the function generator as follows:
Frequency
Run Mode:
Wave:
4. Connect the function generator output to the 2074 TRIG IN
connector
5. Configure the 2074 as follows:
Frequency:
Waveform:
Burst Count:
Amplitude:
Trigger Source: External
Output:
Test Procedure
1. Perform trigger and gate tests using Tables 6-10
2. Configure the counter to TOTB Measurements and perform
burst tests using Tables 6-10. Set counter trigger level to
100mV.
Table 6-10, Trigger, gate, and burst Characteristics.
External Trigger
Pulse
1 MHz, Continuous
1 MHz, Continuous
Single shot
20 dB, 50 Ω feedthrough attenuator at the
oscilloscope input
As required for the test
1 MHz
As required by the test
TTL Square
25 MHz
Sinewave
1e6 counts, each channel
1 V
On
Oscilloscope Reading
CH1, CH2, CH3, CH4
Triggered waveform
Gated Waveform
Burst, 1e6 waveforms
Performance Checks
Test Procedures
Pass Fail
6
6-11