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Atec Rohde-Schwarz-SMIQ Series User Manual

Page 24

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24

Vector Signal Generator R&S SMIQ – Specifications

Clock generation
Clock rate
Resolution
Clock mode
Error

1 kHz to 40 MHz
0.001 Hz
internal or external
<2

−42

related to reference frequency

Signal output
Channels
Output impedance
Output level (EMF, peak)

Normal mode
Manual mode

Level difference between channels
DC offset
Frequency response

Magnitude

up to 12 MHz
up to 10 MHz

Group delay

up to 10 MHz

I/Q imbalance

Magnitude

up to 10 MHz

Group delay

up to 10 MHz

SFDR (sinewave 1 MHz, clock 4 MHz,
measurement range up to 12 MHz)

2 (I and Q)
50

–6 dB to 0 dB referred to 1 V, setting range up to +3 dB
<0.2% at 1 kHz

3 )

<–54 dB in normal mode

3 )

<1 dB
0.1 dB typ.

1 ns typ.

0.05 dB typ.

0.5 ns typ.

>60 dB

Trigger
Trigger modes
Trigger source
External trigger input
Externe trigger frequency
Externer trigger delay range
Externer trigger inhibit range
Pulse width

auto, retrig, armed auto, armed retrig
internal or external
threshold –2.5 V to 2.5 V, impedance 1 k

Ω / 50 Ω

<10 MHz
0 to 2

16

samples

0 to 2

26

samples

>50 ns

Trigger outputs
Number
Delay
On time
Off time
Level

2
0 to 524216 samples
1 to 524215 samples
1 to 524215 samples
TTL

Graphic displays
CCDF

determination and graphic display of CCDF of waveform loaded
into output memory; CCDF also serves for crest factor determination.
The CCDF traces of the three waveforms last loaded can be dis-
played simultaneously.

Operation with WinIQSIM™
WinIQSIM™ is a Windows software that allows a wide variety of I and Q baseband signals to be calculated on a PC
(see WinIQSIM™ data sheet PD 0757.6940). From version 3.30, the software supports downloading of waveforms into
R&S SMIQ and operation of option R&S SMIQB60 from a PC.

I

2

Q

2

+

1V

=