CFG253 User Manual
7
Reference
This section describes two advanced functions of the CFG253
Function Generator: TTL signals and external sweep.
TTL Signals
To generate a TTL signal, follow these steps:
1. Connect the BNC connector from your oscilloscope to the
SYNC (TTL) OUTPUT as shown below.
Observe the results on the oscilloscope. You may want to change
the volts per division setting or other controls on the oscilloscope
to acquire a useful signal.
Test oscilloscope
CFG253
2. Change the frequency RANGE and rotate the FREQUENCY
dial to observe how the frequency of the TTL signal changes.
3. Rotate the DC OFFSET knob.
Notice that this knob has no effect on TTL signals. That is
because the DC offset of a TTL signal is standardized for
compliance with TTL logic. Signals produced from the
SYNC (TTL) OUTPUT are not affected by this knob.
4. Rotate the AMPLITUDE knob.
Notice that this knob has no effect on TTL signals. That is
because the amplitude of a TTL signal is standardized for
compliance with TTL logic. Signals from the SYNC (TTL)
OUTPUT are therefore not affected by this knob.
To Next Page
Need help?
General
