Teledyne T3AWG3K Series Operator's Manual page 60

Operator's Manual Simple AFG Application
•
Frequency Shift Keying (FSK): this modulation is a 2 level FSK. The carrier frequency switches
between the initial carrier frequency and the initial carrier frequency + Hop Frequency [Hz]. It is
available for all functions except for the Pulse, Double Pulse, DC level and Noise.
Note that the Hop Frequency can be negative and it must satisfy the following conditions:
�������������� ������������������ − Hop Frequency > 0 ����
-
�������������� ������������������ + Hop Frequency ≤ �������������� ������������������
-
Where the Maximum Frequency depends on the selected carrier.
•
Phase Shift Keying (PSK): this type of modulation is a 2 level PSK. The carrier phase is shifted by
the value of Hop Phase [deg]. It is available for all functions except for the Pulse, Double Pulse,
DC level and Noise.
The hop phase is between 0 and 360 deg.
•
Pulse Width Modulation (PWM): this modulation is available only for the Pulse waveform. It
modulates the width of the Pulse of the quantity defined in the Deviation [%] parameter that
defines the maximum increase and decrease of the Duty Cycle percentage. The deviation has to
meet the following conditions:
������������������ [ % ] ≤ �������� ���������� [ % ] −
-
������������������ [ % ] ≤ 100 [ % ] − �������� ���������� [ % ] −
-
Where ε is a small margin to avoid that the duty cycle reaches the 0 % or the 100 % and the
factor "0.8" take in account that the edges are defined as 10-90%.
�������������� �������� [ �� ] 100 [ % ]
∗
������������ [ �� ]
0.8
���������������� �������� [ �� ]
0.8
− ��
100 [ % ]
∗ − ��
������������ [ �� ]
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