38 5000 Series Oscilloscopes Service Guide
2 Testing Performance
To verify trigger sensitivity
This test verifies the trigger sensitivity. In this test, you will
apply a sine wave to the oscilloscope at the upper bandwidth
limit. You will then decrease the amplitude of the signal to the
specified levels, and check to see if the oscilloscope is still
triggered.
The internal trigger sensitivity test is mandatory because it is a
specification. The external trigger test is optional because it is a
characteristic, not a specification.
Test limits for:
• Internal trigger on all models:
• < 10 mV/div: greater of 1 div or 5 mV
pp
>=10 mV/div: 0.6 div
• External trigger on all 2-channel models (DSO5xx2A):
• Trigger range: 1.0V
DC to 100 MHz: < 100 mV
pp
>100 MHz to max bandwidth: < 200 mV
pp
• Trigger range: 8.0V
DC to 100 MHz: < 250 mV
pp
>100 MHz to max bandwidth: < 500 mV
pp
• External trigger on 4-channel models:
4-channel models:
DC to 100 MHz: < 500 mV
pp