3.3 Basic operation
WF1946B
3-28
・ In squarewaves (variable duty), the duty range can be switched to 0.0000% to 100.0000% or
0.0100% to 99.9900%. To set a duty in the range from 0.0000% to 100.0000%, set DUTY-VALID
to EXPAND.
IMMED
CYCLE
EXPAND
SYSTEM:
3
DUTY-VALID SYNC OUT
It is not possible to set CYCLE and EXPAND simultaneously.
If DUTY-VALID is set to IMMED or CYCLE, the range in which the duty can be set is 0.0100% to
99.9900%. When the frequency is about 4 kHz or less, pulse losses can be prevented by restricting
the duty range to 0.0100% to 99.9900%.
The waveform cannot be selected in the following cases.
・ Oscillation mode is NOISE or DC.
・ TYPE is DUTY in SWEEP oscillation mode.
・ TYPE is PWM in MODU oscillation mode.