Specifications

11-14
Performance Tests
Pattern Generator Tests
3. Verify that both output can be varied to the specifications given in Table 11-2.
4. Press , , use the RPG control to set the Hi-level to its
maximum (1.5 V).
5. Press , use the RPG control to set the Data amplitude to its maximum
level (2V).
6. Select only the Data scope channel to be ON.
7. Press Autoscale on the scope and select the DELTA V markers ON.
8. Set Marker 2 to the trough of the signal and Marker 1 to the peak of the signal. Read
Marker 1 as the “High Output level” and ∆V as the “Maximum amplitude”. Enter these
values in the Performance Test Record.
9. Press , , use the RPG control to set the Hi-level to its
minimum (−3V).
10.Press , use the RPG control to set the Data amplitude to its minimum
level (300 mV).
11.Set Marker 2 to the trough of the signal and Marker 1 to the peak of the signal. Read
Marker 1 as the “Low Output level” and ∆V as the “Minimum amplitude”. Enter these
values in the Performance Test Record.
12.Repeat 1 to 8 with only the DATA scope channel ON, to obtain Data amplitude and
Hi-level readings. These should also be entered on the ON.
13.Set both the DATA and DATA channels to ON. Press , to be
OFF.
14.Repeat steps 1 to 7 for both channels, ensuring that each signal is independently
adjustable.
15.Verify that both outputs can be varied to the specifications given in Table 11-2.
16.Set the DATA and DATA outputs NOT to track each other. Select then
to off.
17.Verify that both outputs can be varied independently to the specifications in Table 11-2.
Table 11-2 Data Output Amplitude
Parameter Value
High Output Level 0V
termination
<=+1.5 V nom
Low Output Level
>=
−3Vnom
Minimum Amplitude 0.5 V pp nom
Maximum Amplitude 2.0 V pp nom
data output
Data Hi-level
Data ampltd
data output
Data Hi-level
Data ampltd
data output
D/TRACK
data output
D/TRACK