Keysight 34951A, User Manual

Keysight 34951A User’s Guide

15

External Clock

Example: Selecting an external clock source and setting a clock divisor

The first command selects the external clock source on DAC channels 1 and 2 in 

slot 4. The external clock input is shared between these two channels. The second 

command sets the clock divisor to 100 on the same DAC channels (the external 

clock input signal is divided by 100). 

SOURce:FUNCtion:CLOCk:SOURce EXTernal,(@4001,4002)
SOURce:FUNCtion:CLOCk:EXTernal:DIVisor 100,(@4001,4002)

Example: Outputting a clock 

The following commands set the clock output 

frequency for slot 4 to 5 kHz and enable the output.

SOURce:MODule:CLOCK:FREQuency 5E+3,4
SOURce:MODule:CLOCK:STATE ON,4 

External Trigger

Example: Selecting the external trigger source and issuing trigger source

The following command segment enables the trigger output mode on a DAC 

module installed in slot 4, then enables the external trigger source on DAC 

channels 1 and 2. The last command issues an external trigger pulse from the 

module. 

SOURce:MODule:TRIGger:OUTPut ON,4 
SOURce:FUNCtion:TRIGger:SOURce EXTernal,(@4001,4002)
SOURce:MODule:TRIGger:EXTernal:IMMediate 4

Auto Calibration

Example: Performing an auto calibration on all DAC channels

This 

command performs an auto-cal of all four channels on a DAC module. Because 

the auto-cal takes can take up to one minute per DAC channel, you may want to 

increase the time-out value of your programming application prior to sending this 

command. 
The following command performs an auto-cal of a DAC module in slot 5 and 

returns a pass/fail indication.

CALibration:MODule? 5