Rohde & Schwarz SMU200A - Page 113

R&S SMU200A Baseband Digital IQ-Output (Option R&S SMU/SMJ-B18)
1007.9845.82 1.87
E-12
Function External Clock
The equipment layout for generating the digital modulation signals includes the options R&S SMU-B13
(Baseband Main Module) and R&S
SMU-B10 (Baseband Generator).
Test equipment
- See section
“Test Assembly for Measurement realized by RF Evulation on
page 1.2”
- Vector Signal Generator(table 1-1, pos. Pos. 4) ,
- Signal Analyzer R&S FSQ with option R&S FSQ-K70
(vector signal analysis).
Test setup
 Connect CLOCK outputs of reference DUT to CLOCK inputs of
test DUT (DUT).
 Connect the DUT I/Q-outputs to the I/Q-inputs of the signal
generator
 Connect signal analyzer to RF output of signal generator.
Test method The test DUT is supplied with a clock from the reference DUT via the
external interface. The modulated signal is extracted at the RF output
of the signal generator, demodulated with the R&S FSQ and checked
for EVM.