Appendix E: Functional Operation Summary
An example is when the CH1 signal is amplitude modulated with the CH2 signal. If CH2 is set to an amplitude of 5 V and an offset of 2.5 V, a 100% modulated waveform is obtained.
Internal AM mode is useful for such tasks as varying the amplitude of a certain part of a waveform in real time. Due to the restrictions created by the multiplier bandwidth and the signal delay due to the amplifiers, filter, etc. Ð as can be seen in the block diagram Ð this circuit is not meant for applications at high frequencies.
When high frequencies are necessary or when high precision is required, use the editor. It can handle simple multiplication of waveforms.
Preamplifier (Adder) This block is an adder circuit using an ordinary operational amplifier. This adder has a bandwidth of 30 MHz in Add mode. The output is the voltage set for CH1 added to the CH2 signal.
In order to effectively use the CH1 and CH2 filter, offset,and other functions, the CH2 signal is added before the CH1 filter. Therefore, the CH2 signal output is not the value set for CH2.
The actual value is (CH2 set voltage | 1@) + CH1 set up value. Adding CH2 |
| 5 |
value is calculated and displayed at the bottom right of the SETUP menu CRT screen.
CH2 : OFF | Upper : 0.2000% |
50 W | Lower : |
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An example is the display when an amplitude of 2 V and an offset of 0 V are set for CH2.
For addition, the output size (CH1 + the actual value of CH2) can exceed 5 V. If so, the signal is distorted.
In Add mode, if for example noise is created on CH2 and this is added to the CH1 waveform, the amount of noise can be varied in real time. Due to the restrictions created by the adder bandwidth and the signal delay due to the amps, filter, etc. Ð as can be seen in the block diagram Ð this circuit is not meant for applications at high frequencies.
When high frequencies are necessary or when high precisionis required, use the editor. It can handle simple addition of waveforms.
Filter The AWG2021 has four
AWG2021 User Manual | E15 |