SMW200A_specs_en_3606-8037-22_v2700.pdf - 第41页

Version 27.00, October 2024 Rohde & Schwar z R&S ® SMW200A Vec tor Signal Generator 41 Standard baseband c haracteris tics Standard baseband is not availabl e for instruments equipped wi th R&S ® SMW-B1044O, …

Version 27.00, October 2024

40 Rohde & Schwarz R&S

SMW200A Vector Signal Generator

Analog I/Q inputs

For each installed RF path A or B, one pair of I and Q inputs is available on the front panel (single-ended input mode). With the

R&S

SMW-K739 option installed, the input mode for RF path A can also be switched to differential. In this mode, all four available

connectors are used for RF path A.

Analog I/Q input signals are directly applied to the analog I/Q modulation circuit and are not routed through the baseband section of

the R&S

SMW200A.

Analog I/Q inputs are not available if an R&S

SMW-B1044O, R&S

SMW-B2044O, R&S

SMW-B1056O or R&S

SMW-B1067O option

is installed.

Input mode

single-ended

with R&S

SMW-K739 option, for RF path A

R&S

SMW-B1003, R&S

SMW-B1006,

R&S

SMW-B1007, R&S

SMW-B1012,

R&S

SMW-B1020, R&S

SMW-B1044,

R&S

SMW-B1044N

single-ended or differential

R&S

SMW-B1031, R&S

SMW-B1040, R&S

SMW-B1040N

f ≤ 20 GHz

single-ended or differential

f > 20 GHz

single-ended

Connector types

I, Q on front panel (for each installed

RF path A or B)

BNC female

Input impedance

50 Ω (nom.)

VSWR

with R&S

SMW-B1003, R&S

SMW-B2003, R&S

SMW-B1006, R&S

SMW-B2006,

R&S

SMW-B1007, R&S

SMW-B2007, R&S

SMW-B1012, R&S

SMW-B2012,

R&S

SMW-B1020, R&S

SMW-B2020 frequency options

up to 200 MHz

< 1.2 (typ.)

200 MHz to 500 MHz

< 1.35 (typ.)

500 MHz to 1 GHz

< 1.45 (typ.)

with R&S

SMW-B1031, R&S

SMW-B2031, R&S

SMW-B1040, R&S

SMW-B1044,

R&S

SMW-B2044, R&S

SMW-B1056, R&S

SMW-B1067 frequency options

up to 200 MHz, f ≤ 20 GHz

< 1.2 (typ.)

up to 200 MHz, f > 20 GHz

< 1.35 (typ.)

200 MHz to 500 MHz

< 1.35 (typ.)

500 MHz to 1 GHz

< 1.5 (typ.)

with R&S

SMW-B1040N, R&S

SMW-B1044N, R&S

SMW-B2044N,

R&S

SMW-B1056N, R&S

SMW-B1067N frequency options

up to 200 MHz, f ≤ 20 GHz

< 1.2 (typ.)

200 MHz to 500 MHz, f ≤ 20 GHz

< 1.35 (typ.)

500 MHz to 1 GHz, f ≤ 20 GHz

< 1.5 (typ.)

up to 275 MHz, f > 20 GHz

< 1.35 (typ.)

Nominal input voltage for full-scale input

Damage voltage

±2 V

+ = 0.5 V

Version 27.00, October 2024

Rohde & Schwarz R&S

SMW200A Vector Signal Generator 41

Standard baseband characteristics

Standard baseband is not available for instruments equipped with R&S

SMW-B1044O, R&S

SMW-B2044O, R&S

SMW-B1056O or

R&S

SMW-B1067O frequency options.

Internal baseband characteristics

(R&S

SMW-B13 or R&S

SMW-B13T option)

The R&S

SMW-B13 option provides one I/Q path to the RF section (to RF path A) as well as one analog I/Q output (i.e. one I and one

Q output connector). The R&S

SMW-B13T option provides two I/Q paths to the RF section (if two RF paths are installed) as well as

two analog I/Q outputs. With two RF paths, R&S

SMW-B13T is required.

Either R&S

SMW-B13 or R&S

SMW-B13T must be installed on the instrument.

R&S

SMW-B13 and R&S

SMW-B13T cannot be installed in instruments equipped with R&S

SMW-B1044O, R&S

SMW-B2044O,

R&S

SMW-B1056O or R&S

SMW-B1067O frequency options.

D/A converter

Data rate

200 MHz

Resolution

16 bit

Sample rate

800 MHz (internal interpolation · 4)

Aliasing filter

with amplitude, group delay and S

correction

Bandwidth, rolloff to –0.1 dB

80 MHz

SFDR (excluding harmonics)

up to 10 MHz

< –80 dBc

up to 80 MHz

< –73 dBc

I/Q impairments (digital baseband)

These impairments are set in the digital baseband section of the R&S

SMW200A. They

act on the I/Q signal sent to the I/Q modulator/RF section, as well as on the I/Q signals

at the analog or digital I/Q outputs (of the respective path).

Carrier leakage

Setting range

–10 % to +10 %

Setting resolution

0.01 %

I  Q (imbalance)

Setting range

–1 dB to +1 dB

Setting resolution

0.001 dB

Quadrature offset

Setting range

–10° to +10°

Setting resolution

0.01°

Analog I/Q outputs (R&S

SMW-B13 or R&S

SMW-B13T option)

Number of I/Q outputs

with R&S

SMW-B13 option

with R&S

SMW-B13T option

Output impedance

50 Ω

Output voltage

EMF (output voltage depends on set

modulation signal)

1 V (V

)

Offset

EMF

< 1 mV

Frequency response

at R

= 50 Ω

Magnitude

up to 10 MHz

0.02 dB (meas.)

up to 80 MHz

0.03 dB (meas.)

I/Q balance

at R

= 50 Ω

Magnitude

up to 10 MHz

0.01 dB (meas.)

up to 80 MHz

0.02 dB (meas.)

Spectral purity

at R

= 50 Ω

SFDR (sine wave)

up to 2 MHz

> 70 dB

up to 20 MHz

60 dB (meas.)

Wideband noise

10 MHz sine wave at 1 MHz offset

–155 dBc (typ.)

"Optimize internal I/Q impairments for RF output" switched off.

Value applies after 1 hour warm-up time and recalibration for 4 hours of operation and temperature variations of less than +5 °C.

Version 27.00, October 2024

42 Rohde & Schwarz R&S

SMW200A Vector Signal Generator

Differential analog I/Q outputs (R&S

SMW-K16 option)

This option can be installed once if the instrument is equipped with the R&S

SMW-B13 option. If the instrument is equipped with the

R&S

SMW-B13T option, differential analog I/Q outputs can be used either on signal path A or B with one R&S

SMW-K16 option. For

differential analog I/Q outputs to be used on signal paths A and B simultaneously, two R&S

SMW-K16 must be installed.

Output impedance

Single-ended

50 Ω

Differential

100 Ω

Output voltage (V

out

)

output voltage depends on set modulation signal

Single-ended

EMF

0.02 V to 2 V (V

)

Resolution

1 mV

Differential

EMF

0.04 V to 4 V (V

)

Resolution

2 mV

Bias voltage (V

bias

)

Single-ended

EMF

–4 V to (+4 V – V

out

)

Differential

EMF

(–4 V + V

out

/ 2 + V

offset

/ 2) to

(+4 V – V

out

/ 2 – V

offset

/ 2)

Resolution

2 mV

Uncertainty

1 % + 4 mV

Offset voltage (V

offset

)

Differential

EMF

(–4 V + V

out

/ 2 + V

bias

/ 2) to

(+4 V – V

out

/ 2 – V

bias

/ 2)

Resolution

0.1 mV

Uncertainty

1 % + 0.1 % · bias voltage + 1 mV

Differential signal balance

at R

= 50 Ω, output voltage > 0.5 V (V

)

Magnitude

up to 10 MHz

< 0.2 dB, 0.05 dB (meas.)

up to 80 MHz

0.2 dB (meas.)

Frequency response

at R

= 50 Ω, output voltage > 0.5 V

)

Magnitude

up to 10 MHz

0.02 dB (meas.)

up to 80 MHz

0.03 dB (meas.)

"Optimize internal I/Q impairments for RF output" switched off.