Reference
10 CFG280 User Manual
3. Change the FREQUENCY range and rotate the FREQUENCY
dial. Observe how the frequency of the TTL signal changes.
4. Rotate the DC OFFSET knob. Notice that this knob has no effect
on TTL signals.
The DC OFFSET knob has no effect because the DC offset of a
TTL signal is standardized for compliance with TTL logic.
Signals produced from the SYNC OUT connector are not affected
by this knob.
5. Rotate the AMPLITUDE knob. Notice that this knob has no
effect on TTL signals.
The AMPLITUDE knob has no effect because the amplitude of a
TTL signal is standardized for compliance with TTL logic.
Internal Sweep
To use the internal sweep function, follow these steps:
1. Connect the MAIN OUT BNC on the CFG280 Function
Generator to the device under test, such as a filter (see Figure 5).
2. Connect the SWEEP OUT connector to one channel of an
oscilloscope (see Figure 5).
Test oscilloscope
CFG280
Device
under test
MAIN OUT
SWEEPOUT
Figure 5: Internal Sweep Test Setup