Pulse Width Modulation (PWM)
l
DnRamp with 0% symmetry
l Noise - white gaussian noise
l PRBS - Pseudo Random Bit Sequence (polynomial PN7)
l Arbitrary waveform
l You can use noise as the modulating waveshape, but you cannot use noise, arbitrary waveforms, or DC as the car-
rier.
l Front-Panel:
l SCPI: PWM:INTernal:FUNCtion {SIN|SQUare|RAMP|NRAMp| TRIangle|NOISe|PRBS|ARB}
Modulating Waveform Frequency
The instrument accepts an internal or external modulation source. The external modulation input has a -3dB band-
width of 100 kHz.
l Modulating frequency (internal source): 1 µHz to 30 MHz. The default is 10 Hz.
l Front Panel:
l SCPI:[SOURce[1|2]:]PWM:INT:FREQ {<freq>|MIN|MAX}
84 Agilent 33500 Series Operating and Service Guide