Keysight M8121A, User Manual

Page: 102 / 144

102 Keysight M8121A Arbitrary Waveform Generator User Guide
6 Remote Programming
Description This command is used to set or query the sample clock frequency.
Examples Command
:FREQ:RAST 2e9
Query
:FREQ:RAST?
[:SOURce]:FREQuency:RASTer:EXTernal[?]
Command
[:SOURce]:FREQuency:RASTer:EXTernal
<frequency>|MINimum|MAXimumency_integral>|MIN|MAX|DEF
ault
Query
[:SOURce]:FREQuency:RASTer:EXTernal?
Parameters
<frequency>|MINimum|MAXimum
Parameter Suffix None
Description This command sets or queries the external sample frequency. The internal
sample clock f
Sa,i
is derived from the sample clock provided at SCLK IN.
For f
Sa,i
= 500 MSa/s…1 GSa/s the sample clock input must be twice of
f
Sa,i
.
For f
Sa,i
= 250 MSa/s…500 MSa/s the sample clock input must be four
times f
Sa,i
.
For f
Sa,i
= 125 MSa/s…250 MSa/s the sample clock input must be eight
times f
Sa,i
.
Examples Command
:FREQ:RAST:EXT MIN
Query
:FREQ:RAST:EXT?