Specifications

Fixed Width Pulses at Variable Frequency (FM)
This function sets up one or more VT1534A channels to output a train of pulses. A
companion command sets the width ( edge to ¯ edge) of the pulses. The frequency
of the pulse train from these channels is controlled by Algorithm Language
statements.
Use the command SOURce:FUNCtion[:SHAPe]:PULSe (@<ch_list>). Example
command sequence:
To enable frequency modulation for VT1534A’s fourth channel at SCP position 6
SOUR:FM:STATE ON,(@151)
To set pulse width to 0.3333 ms
SOUR:PULSE:WIDTH 0.3333e-3,(@151)
To set function of VT1534A’s fourth channel in SCP position 6 to PULSE
SOUR:FUNCTION:PULSE (@151)
Example algorithm statement to control frequency to 1000 Hz
O151 = 1000;
Variable Frequency Square-Wave Output (FM)
To set function of VT1534A’s fifth channel in SCP position 6 to output a
variable frequency square-wave.
SOUR:FUNCTION:SQUare (@152)
Example Algorithm Language statement to set output to 20 kHz
O152 = 20e3;
For complete VT1534A capabilities, see the SCP’s User’s Manual.
Programming the VT1419A Multifunction
Plus
Setting Up Digital Input and Output Channels
70 Chapter 3
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