Rohde & Schwarz EX-IQ-BOX, Руководство пользователя

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Protocol Settings
R&S
®
EX-IQ-BOX
107 User Manual 1409.5570.32 ─ 05
Fig. 7-15: User defined > Signal flow: I/Q OUT parallel, double data rate, I/Q
interleaved
Direction = Transmitter
Format = Parallel
Data Rate = DDR
Interleaving = I/Q interleaved
The rising edge of the clock signal triggers the I data, the falling
edge the Q data.
"Q/I Inter-
leaved" Transmit the baseband signal on the I data line starting with Q data.
With interchanged order of the I and Q data the I/Q signal is transferred
similarly as described above.
Remote command:
​
[:
​
SOURce<hw>]:
​
EBOX:
​
USER:
​
ILEaving
​
on page 265
Sample / Clock Rate Ratio
Sets the sample to clock rate ratio in parallel signal transmisssion mode. This parameter
characterizes the ratio of the sample rate to the clock rate depending on the parameter
settings for "Word Size", "Interleaving" and "Data Rate". See also
​
"Clock Rate"
on page 115.
Note:
SCPI notation varies
●
In the remote control, determine the clock rate ratio value for the R&S DigIConf and
R&S signal generators with
SCRxDy
.
x
represents the value,
D
substitues the decimal
point, and
y
is the decimal place.
●
In contrast, just enter the value
x.x
when using an R&S signal analyzer.
Follow the command link below for description of the command and its syntax in detail.
"SCR" 1, 4/5, 2/5, 1/5, 1/10, 1/20
"SCR < 1:" Dummy samples are added.
The signal output SCR_VALID at the UI_GP_P1 pin of the user inter-
face marks the validity of the data.
Remote command:
​
[:
​
SOURce<hw>]:
​
EBOX:
​
USER:
​
SCRatio
​
on page 271
Data Settings
Displays the data parameters "Word Size", "Numeric Format" and "Signal Type". For the
description of these parameters, see
​
chapter 7.1.4, "Data" , on page 108, including
​
"Word
Size" on page 109,
​
"Numeric Format" on page 112, and
​
"Signal Type" on page 108.
Clock Settings
Indicates the current values of the Clock Source and the Clock Phase. For the description
of these settings in detail, see
​
"Clock Source" on page 116 and
​
"Clock Phase"
on page 118.
User Defined