R&S AFQ100A
Baseband Block
1401.3084.32 4.33
E-3
Measured External
Clock - Memory Clock
(Clock source
external
only)
Indicates the measured frequency of the external clock signal. Thus, a
screening of the external clock is possible. The measured frequency is
indicated only when the clock source External is selected.
Remote-control command:
CLOC:INP:FREQ?
Threshold and impedance of the external clock signal are entered in the
Input Line Setup (CLKIN /
TRIG / NEXT)
section. This section is indicated only when clock source External is selected.
Threshold - Input Line
Setup
(Clock source
external
only)
Sets the high/low threshold for the three inputs CLOCK IN, TRIG and
NEXT (segment trigger). The threshold can be set only if the trigger
source external is selected.
Remote-control command:
SOUR:INP:CONT:THR
Impedance - Input Line
Setup
(Clock source
external
only)
Sets the impedance for the three inputs CLOCK IN, TRIG and NEXT
(segment trigger). The lower value, 50 Ohm, is recommended for high
clock frequencies or signals with high slew rates. The impedance can
be set only when the clock source External is selected.
Remote-control command:
SOUR:INP:CONT:IMP
The reference clock source can be selected in the
Reference Clock (10 MHz)
section. In addition,
synchronization of several R&S AFQs is enabled and configured.
