SMW200A_specs_en_3606-8037-22_v2700.pdf - 第48页
Version 27.00, October 2024 48 Rohde & Schwar z R&S ® SMW200A Vec tor Signal Generator Extended sequenci ng ( R&S ® SMW - K501 option) The R&S ® SMW- K501 op tion enables wa veform sequen cing and real -t…
Version 27.00, October 2024
Rohde & Schwarz R&S
®
SMW200A Vector Signal Generator 47
External trigger input
selectable from USER 1, 2, 3 on front panel
or T/M/C 1, T/M 2, T/M 3 of respective
baseband generator on rear panel
Connector type
USER 1, 2, 3 on front panel,
T/M/C 1, T/M 2, T/M 3 of respective
baseband generator on rear panel
BNC female
Input level
0 V to 3 V (nom.)
Threshold
USER 1, 2, 3
settable from 0.1 V to 2.0 V
T/M/C 1, T/M 2, T/M 3
settable from 0.3 V to 2.0 V
Input damage voltage
–0.5 V; 3.8 V
Input impedance
selectable
1 kΩ or 50 Ω (nom.)
Trigger jitter
±2.5 ns
External trigger delay
Setting range
0 sample to 2.147 · 10
9
sample
Setting resolution
without R&S
®
SMW-B14 option
5 ns
with R&S
®
SMW-B14 option
1/fading clock rate (= 5 ns or 10 ns)
External trigger inhibit
Setting range
0 sample to (21.47 s · sample rate) sample
Setting resolution
1 sample
External trigger pulse width
> 7.5 ns
Marker signals
Number of marker signals
3
Operating modes
unchanged, restart, pulse, pattern, ratio
Marker outputs
selectable from USER 1, 2, 3 on front panel
or T/M/C 1, T/M 2, T/M 3 of respective
baseband generator on rear panel
Connector type
USER 1, 2, 3 on front panel,
T/M/C 1, T/M 2, T/M 3 of respective
baseband generator on rear panel
BNC female
Level
LVTTL
Marker delay
Setting range
0 sample to (waveform length – 1) sample
Setting resolution
1 sample
Marker duration
Minimum value
1 sample
Multisegment waveform mode
Number of segments
1 to 1024
Changeover modes
GUI, remote control, external trigger
Extended trigger modes
same segment, next segment, next
segment seamless, sequencer
Changeover time
at 50 MHz clock rate, external trigger,
without clock change
20 µs (meas.)
Seamless changeover
output up to end of current segment,
followed by changeover to next segment
Sequencer play list length
max. 1024
Sequencer segment repetitions
max. 1 048 575
Multicarrier waveform mode
Number of carriers
max. 512
Total RF bandwidth
max. 120 MHz
with R&S
®
SMW-K522 option
max. 160 MHz
Carrier spacing
Setting range
depends on number of carriers and signal
RF bandwidth
Setting resolution
0.01 Hz
Crest factor modes
maximize, minimize, off
Signal period modes
longest file, shortest file, user (max. 1 s)
Single carrier gain
Setting range
–80 dB to 0 dB
Setting resolution
0.01 dB
Single carrier start phase
Setting range
0° to 360°
Setting resolution
0.01°
Single carrier delay
Setting range
0 s to 1 s
Setting resolution
1 ns
Version 27.00, October 2024
48 Rohde & Schwarz R&S
®
SMW200A Vector Signal Generator
Extended sequencing (R&S
®
SMW-K501 option)
The R&S
®
SMW-K501 option enables waveform sequencing and real-time signal generation for ultra long playtime. Waveform
variations such as offset frequency, amplitude and phase are calculated in real-time and do not require precalculated waveforms.
The R&S
®
SMW-K501 option offers two different modes:
In user mode, all sequences are based on user-defined XML based lists with up to 5 levels of nested loops. Special list types for
frequency changes over time and amplitude changes over time are also available.
In pulse sequencer mode, the extended sequencing is controlled by the external R&S
®
Pulse Sequencer Software, a powerful software
tool for simulating complex sequencing scenarios.
At least one R&S
®
SMW-B10 option (standard baseband generator) must be installed. If two R&S
®
SMW-B10 options are installed
(signal paths A and B), extended sequencing can be used either on signal path A or B with one R&S
®
SMW-K501 option. For extended
sequencing to be used simultaneously on signal paths A and B, two R&S
®
SMW-K501 options must be installed.
General settings
Modes
sequencing via user-defined XML lists
user
controlled by external
R&S
®
Pulse Sequencer Software
(R&S
®
SMW-K300 required)
pulse sequencer
User mode
List types
Sequencing lists define an arbitrary
number of entries that represent either a
waveform or a sublist with further entries.
sequencing list
Time lists store a list of different off times
between waveform segments. They can
be referenced in sequence entries.
time list
Attenuation lists define the power level of
the output signal over time.
attenuation list
Hopping lists define frequency offsets of
the output signal over time.
hopping list
Sequence
link to a sequencing list XML file
Attenuation over time
link to an attenuation list XML file
Hopping
link to a hopping list XML file
Pulse sequencer mode
see R&S
®
Pulse Sequencer Software specifications (PD 3607.1388.22)
Waveform segments
Segment length
1 sample to 64 Msample
Minimum memory allocation
64 sample
Maximum number of segments
depends on segment lengths and
baseband generator ARB memory size
Waveform sequences
Sequencing
continuously repeating
Maximum number of segments per
sequence
depends on segment lengths and
baseband generator ARB memory size
Maximum number of segment repetitions
2
32
Clock
see section Standard baseband generator
(R&S
®
SMW-B10 option) – arbitrary
waveform mode
Triggering
see section Standard baseband generator
(R&S
®
SMW-B10 option) – arbitrary
waveform mode
Marker signals
Number of marker signals
3
Operating modes
marker at every start of sequence
restart
marker 1 embedded in waveform
unchanged
XML-defined marker for each entry
entry
Marker outputs
see section Standard baseband generator
(R&S
®
SMW-B10 option) – arbitrary
waveform mode
Marker delay
see section Standard baseband generator
(R&S
®
SMW-B10 option) – arbitrary
waveform mode
Marker duration
see section Standard baseband generator
(R&S
®
SMW-B10 option) – arbitrary
waveform mode
Version 27.00, October 2024
Rohde & Schwarz R&S
®
SMW200A Vector Signal Generator 49
Standard baseband generator (R&S
®
SMW-B10 option) –
real-time operation (custom digital modulation)
See Digital Standards for Signal Generators specifications (PD 5213.9434.22).