SMW200A_specs_en_3606-8037-22_v2700.pdf - 第57页

Version 27.00, October 2024 Rohde & Schwar z R&S ® SMW200A Vec tor Signal Generator 57 Wideband baseban d generator (R&S ® SMW-B9 option) – arbitrary waveform mode One or two R&S ® SMW-B9 can be installed…

Version 27.00, October 2024

56 Rohde & Schwarz R&S

SMW200A Vector Signal Generator

Interface

Standard

DIG I/Q, in line with

R&S

Digital I/Q Interface PAD-R

I/Q data and control signals, data and

interface clock

Level

LVDS

Connector

26-pin MDR

I/Q sample rate

With source "user-defined", the sample rate must be entered via the parameter

"sample rate". With source "Digital I/Q In", the sample rate will be used based on

information provided by the transmitting device.

Source

user-defined, Digital I/Q In

Sample rate

maximum sample rate depends on

connected receiving device

400 Hz to 250 MHz

Resolution

source: user-defined

0.001 Hz

Frequency uncertainty

source: user-defined

< (1 · 10

−12

+ relative deviation of

reference frequency) · sample rate (nom.)

I/Q data

Resolution

18 bit

Logic format

two’s complement

Bandwidth (RF)

system configuration mode: advanced

0.8 · sample rate

Control signals

markers

HS DIQ I/Q interface

Input level

peak level

Setting range

–60 dB to +3 dB, referenced to full scale

Setting resolution

0.01 dB

Crest factor

Setting range

0 dB to +30 dB

Setting resolution

0.01 dB

Adjust level function

automatically determines peak level and

crest factor of input signal

Standard

HS DIG I/Q, in line with

R&S

Digital I/Q Interface 40G PAD-R

(DIG I/Q 40G), I/Q data and control

signals

Level

LVDS

Connector

QSFP+ / QSFP 28

I/Q sample rate

Source

the sample rate will be used based on

information provided by the transmitting

device

HS digital I/Q In

Sample rate

maximum sample rate depends on connected transmitting device and system

configuration mode

system configuration mode: standard

40G

up to 1.05 GHz

50G

up to 1.25 GHz

system configuration mode: advanced

up to 250 MHz

with R&S

SMW-K822 option

up to 500 MHz

with R&S

SMW-K823 option

up to 1000 MHz

Resolution

0.001 Hz

Frequency uncertainty

< (1 · 10

−12

+ relative deviation of

reference frequency) · sample rate (nom.)

I/Q data

Resolution

16 bit

Logic format

two’s complement

Bandwidth (RF)

system configuration mode: standard

0.83 · sample rate

Control signals

markers

R&S

Digital I/Q Interface PAD-R is a Rohde & Schwarz internal company guideline for the transmission of digital I/Q data. It is supported by a wide

range of signal generators, signal analyzers and radio communication testers.

Version 27.00, October 2024

Rohde & Schwarz R&S

SMW200A Vector Signal Generator 57

Wideband baseband generator (R&S

SMW-B9 option) – arbitrary waveform

mode

One or two R&S

SMW-B9 can be installed. Their I/Q signals can be assigned a frequency offset.

Prerequisite: R&S

SMW-B13XT must be installed.

Waveform length

1 sample to 256 Msample in one-sample

steps

with R&S

SMW-K515 option

(memory extension)

1 sample to 2 Gsample in one-sample

steps

Supported file formats

.wv, .mat, .csv, .iq.tar

Nonvolatile memory

hard disk

Sample resolution

equivalent to D/A converter

14 bit

Sample rate

400 Hz to 600 MHz

with R&S

SMW-K525 option

400 Hz to 1200 MHz

with R&S

SMW-K527 option

400 Hz to 2400 MHz

Sample frequency error

internal clock

< (1 · 10

−12

+ relative deviation of

reference frequency) · sample rate (nom.)

Sample clock source

internal

Bandwidth (RF)

at maximum sample rate,

rolloff to –0.1 dB

500 MHz

at reduced sample rate,

rolloff to –0.1 dB

(The waveform is automatically

interpolated to the internal sample rate of

600 MHz.)

0.833 · sample rate

Bandwidth (RF) with R&S

SMW-K525

option

at maximum sample rate,

rolloff to –0.1 dB

1000 MHz

at reduced sample rate,

rolloff to –0.1 dB

(The waveform is automatically

interpolated to the internal sample rate of

1200 MHz.)

0.833 · sample rate

Bandwidth (RF) with R&S

SMW-K527

option

at maximum sample rate,

rolloff to –0.1 dB

2000 MHz

at reduced sample rate,

rolloff to –0.1 dB

(The waveform is automatically

interpolated to the internal sample rate of

2400 MHz.)

0.833 · sample rate

Frequency offset

Using the frequency offset, the center frequency of the wanted baseband signal can be

shifted. The restrictions caused by the modulation bandwidth still apply.

Frequency offset setting range

–250 MHz to +250 MHz

with R&S

SMW-K525 option

–500 MHz to +500 MHz

with R&S

SMW-K527 option

–1000 MHz to +1000 MHz

Frequency offset setting resolution

0.01 Hz

Frequency offset error

< 9 · 10

–6

Hz + relative deviation of

reference frequency · frequency offset

(nom.)

Triggering

A trigger event restarts I/Q generation. The I/Q signal is then synchronous with the

trigger (with a specific timing jitter).

Trigger source

event triggered via GUI or remote

command

internal

event triggered by other baseband

generator

internal (baseband A/B)

event triggered by external trigger signal

external

Trigger modes

The signal is generated continuously.

auto

The signal is generated continuously.

A trigger event causes a restart.

retrig

The signal is started only when a trigger

event occurs. Subsequent trigger events

are ignored.

armed auto

The signal is started only when a trigger

event occurs. Every subsequent trigger

event causes a restart.

armed retrig

Version 27.00, October 2024

58 Rohde & Schwarz R&S

SMW200A Vector Signal Generator

The signal is started only when a trigger

event occurs. The signal is generated

once.

single

External trigger input

selectable from USER 1, 2, 3 on front

panel, or USER 4, 5, 6 on rear panel

Connector type

USER 1, 2, 3 on front panel,

USER 4, 5, 6 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

USER 4, 5, 6

settable from 0.1 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

±1.67 ns

External trigger delay

Setting range

0 sample to 2.147 · 10

sample

Setting resolution

0.4 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

Operating modes

unchanged, restart, pulse, pattern, ratio

Marker outputs

selectable from USER 1, 2, 3 on front

panel or USER 4, 5, 6 on rear panel

Connector type

USER 1, 2, 3 on front panel,

USER 4, 5, 6 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

sample rate ≤ 300 Msample/s

1 sample

300 Msample/s < sample rate ≤

600 Msample/s

2 sample

600 Msample/s < sample rate ≤

1200 Msample/s

4 sample

1200 Msample/s < sample rate ≤

2400 Msample/s

8 sample

Multisegment waveform mode

Number of segments

1 to 1024

Changeover modes

GUI, remote control

Extended trigger modes

same segment, next segment, next

segment seamless, sequencer

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. 500 MHz

with R&S

SMW-K525 option

max. 1000 MHz

with R&S

SMW-K527 option

max. 2000 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°