Atec Rohde-Schwarz-SML03 - Manual (Page 8)

Signal Generator ¸SML 8
Specifications
Specifications apply under the following conditions:
15 minutes warmup time at ambient temperature, specified environmental
conditions met, calibration cycle adhered to, and total calibration performed.
Data designated “nominal” apply to design parameters and are not tested.
Data designated “overrange” are not warranted.
Warranted specs do not apply to the Extended Divider Range mode.
Frequency
Range 9 kHz to 1.1 GHz
¸SML01
¸SML02
¸SML03 9 kHz to 1.1 GHz
9 kHz to 2.2 GHz
9 kHz to 3.3 GHz
Resolution 0.1 Hz
Resolution of synthesis
(standard, f <1.1 GHz)
<0.5 µHz
Setting time (for an offset of <1 × 10
−7
or <90 Hz for f ≤76 MHz) after
IEC/IEEE-bus delimiter <10 ms
Reference frequency
Standard Option ¸SML-B1
Aging (after 30 days of operation) <1 × 10
−6
/year <1 × 10
−7
/year or
<5 × 10
−10
/day
Temperature drift (0°C to 55°C) <1 × 10
−6
<2 × 10
−8
Output for internal reference
Frequency
Output voltage, V rms, sinewave
Source impedance 10 MHz
>0.5 V into 50
Ω
50 Ω
Input for external reference
Frequency
Permissible frequency drift
Input voltage, V rms, sinewave
Input impedance 10 MHz
5 × 10
–6
0.5 V to 2 V into 50
Ω
50 Ω
Spectral purity
Spurious signals
Harmonics (for f >100 kHz) 1)
¸SML01
¸SML02/03
Subharmonics
f ≤1.1 GHz
f >1.1 GHz
Nonharmonics
(carrier offset >10 kHz)
f ≤1.1 GHz
f >1.1 GHz to 2.2 GHz
f >2.2 GHz to 3.3 GHz
<
−30 dBc at levels ≤+10 dBm
< −30 dBc at levels ≤+8 dBm
none
<–50 dBc
<–70 dBc
<–64 dBc
<–58 dBc
Broadband noise 2) (f = 1 GHz,
carrier offset >2 MHz, 1 Hz bandwidth) < −140 dBc, typ. −150 dBc
SSB phase noise (f = 1 GHz, 20 kHz
carrier offset, 1 Hz bandwidth)
<
−122 dBc, typ. −128 dBc
Residual FM, rms (f = 1 GHz)
0.3 kHz to 3 kHz
0.03 kHz to 20 kHz <4 Hz, typ. 1 Hz
<10 Hz, typ. 3 Hz
Residual AM, rms (0.03 kHz to 20 kHz) <0.02%
Level
Range –140 dBm to +13 dBm 2)3)
(overrange +19 dBm)
Resolution 0.1 dB
Level accuracy 2)4) (level >–120 dBm)
¸SML01 (for f >100 kHz)
¸SML02/03
100 kHz to ≤2 GHz
f >2 GHz
<0.5 dB
<0.5 dB
<0.9 dB
Frequency response at 0 dBm 2)4)
¸SML01 (for f >100 kHz)
¸SML02/03
100 kHz to ≤2 GHz
f >2 GHz
<0.5 dB, typ. 0.3 dB
<0.7 dB
<1.0 dB
Characteristic impedance 50
Ω
VSWR
¸SML01
¸SML02/03
100 kHz to 1.5 GHz
f
>1.5 GHz
<1.5
typ. 1.6
typ. 2.3
Setting time (IEC/IEEE bus), f >100 kHz <10 ms, typ. 5 ms
Non-interrupting level setting
(for f >100 kHz)
5) 20 dB, overrange 30 dB
Overvoltage protection safeguards unit against externally
applied RF power and DC voltage
(50
Ω source)
Max. permissible RF power
f
≤2.2 GHz
f >2.2 GHz
50 W
25 W
Max. permissible DC voltage 35 V
Internal modulation generator
Frequency range
Resolution
0.01 Hz to 1 MHz
0.01 Hz
Frequency accuracy same as for reference frequency +
2.4 × 10
−3
Hz
Frequency response
(up to 500 kHz, level >100 mV)
<0.5 dB
THD (up to 100 kHz, level 4 V,
R
L
= 600
Ω)
<0.1%
Open-circuit voltage V
p
(LF connector)
Resolution
Setting accuracy (at 1 kHz)
1 mV to 4 V
1 mV
1% of V
p
+ 1 mV
Output impedance approx. 10 Ω
Frequency setting time (after reception
of last IEC/IEEE-bus character)
<10 ms
Simultaneous modulation AM, FM/ ϕM and pulse modulation
Amplitude modulation 6)
Operating modes internal, external AC/DC,
internal/external two-tone
Modulation depth 0% to 100%,
settable modulation depth continuously
decreasing between +7 dBm and
+13 dBm
7) while adhering to AM speci-
fications; a status message is output
when modulation depth is too high
Resolution 0.1%
Setting accuracy at AF = 1 kHz
(m <80%)
8) <4% of reading +1%
AM distortion 8) at AF = 1 kHz
m = 30%
m = 80% <1%
<2%
Modulation frequency range (<3 dB) DC/10 Hz to 50 kHz
Incidental
ϕM at AM (30%),
AF = 1 kHz <0.2 rad
Modulation input EXT
Input impedance
Input voltage V
p
for set
modulation depth
>100 k
Ω
1 V