Teledyne LeCroy PXA125 - Manual (Page 160)

User Manual PXA125
Programming Reference 4-42
Numeric
Parameter range
<freq> 100e-6 to 50e6
FREQuency?
Response and default
The PXA125 will return the present frequency value. The returned value will be in standard scientific format
(for example: 100mHz would be returned as 100E-3 – positive numbers are unsigned). Default value is 1e6.
FREQuency:RASTer{<sclk>|MINimum|MAXimum}
Purpose
This command modifies the sample clock frequency of the arbitrary waveform in units of samples per second
(S/s). It has no affect on standard waveforms.
•
<sclk> sets the sample clock frequency
•
<MINimum> sets the sample clock frequency to its lowest value
•
<MAXimum> sets the sample clock frequency to its highest value
Parameter type
Numeric
Parameter range
<sclk> 100e-3 to 100e6
FREQuency:RASTer?
Response and default
The PXA125 will return the present sample clock frequency value. The returned value will be in standard
scientific format (for example: 100MHz would be returned as 100E6 – positive numbers are unsigned).
Default value is 10e6.
FREQuency:RASTer:SOURce{EXTernal|INTernal}
Purpose
This command selects the source of the sample clock generator. This command affects both the standard
and the arbitrary waveforms.
•
<EXTernal> selects an external source
•
<INTernal> selects the internal source
Parameter type
Discrete
FREQuency:RASTer:SOURce?
Response and default
The PXA125 will return EXT if an external source is selected, or INT if the internal source is selected. Default
value is INT.