Agilent N5181A MXG
Analog Signal Generator
Data Sheet
Performance optimized
for manufacturing
• Fast switching speeds
• Simplified self-maintenance
Table of Contents
Definitions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3
Frequency . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4
Amplitude . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
Spectral Purity . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
Analog Modulation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
Frequency modulation . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
Phase modulation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
Amplitude modulation . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
Pulse modulation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
Internal analog modulation source . . . . . . . . . . . . . . . . . . 14
External modulation inputs . . . . . . . . . . . . . . . . . . . . . . . . 14
Simultaneous modulation. . . . . . . . . . . . . . . . . . . . . . . . . . 14
General Characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
Ordering Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
Related Literature . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
Application literature . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
Product literature . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
2
Definitions
Specification (spec): Represents warranted per formance of a calibrated instrument
that has been stored for a minimum of 2 hours within the operating temperature
range of 0 to 55 °C, unless otherwise stated, and after a 45 minute warm-up period.
The specifications include measurement uncertainty. Data represented in this
document are specifications unless otherwise noted.
Typical (typ): Represents characteristic performance, which 80% of the instruments
manufactured will meet. This data is not warranted, does not include measurement
uncertainty, and is valid only at room temperature (approximately 25 °C).
Nominal (nom): The expected mean or average performance, or an attribute whose
performance is by design, such as the 50 Ω connector. This data is not warranted and
is measured at room temperature (approximately 25 °C).
Measured (meas): An attribute measured during the design phase for purposes of
communicating expected performance, such as amplitude drift vs. time. This data is
not warranted and is measured at room temperature (approximately 25 °C).
Note: All graphs contain measured data from several units at room temperature unless
otherwise noted.
3
Frequency
Range
Option 501 250 kHz to 1 GHz
Option 503 250 kHz to 3 GHz
Option 506 250 kHz to 6 GHz
1
Minimum frequency 100 kHz
Resolution 0.01 Hz
Phase offset Adjustable in nominal 0.01° increments
Frequency bands
Band Frequency range N
1 100 kHz to < 250 MHz 0.5
2 250 to < 375 MHz 0.125
3 375 to < 750 MHz 0.25
4 750 to < 1500 MHz 0.5
5 1500 to < 3000.001 MHz 1
6 3000.001 to 6000 MHz 2
Switching speed
Type Standard Option UNZ
SCPI mode ≤ 5 ms (typ) ≤ 1.15 ms
List/Step sweep mode ≤ 5 ms (typ) ≤ 900 µs
2
3, 4
Accuracy ± aging rate
± temperature effects
± line voltage effects
I
nternal time base
reference oscillator
aging rate ≤ ± 5 ppm/10 yrs, < ± 1 ppm/yr
Temperature effects ± 1 ppm (0 to 55 °C)
Line voltage effects ± 0.1 ppm (nom)
Line voltage range 5% to –10% (nom)
Reference output
Frequency 10 MHz
Amplitude ≥ +4 dBm (nom) into 50 Ω load
1. Performance below 250 kHz is unspecified.
2. N is a factor used to help define certain specifications within the document.
3. Time from receipt of SCPI command or trigger signal to within 0.1 ppm of final frequency
or within 100 Hz, whichever is greater, and amplitude settled to within 0.2 dB.
4. Additional time may be required for the amplitude to settle within 0.2 dB when switching
to or from frequencies < 500 kHz or amplitudes > +5 dBm
4
External reference input
Input frequency Standard Option 1ER
10 MHz 1 to 50 MHz (in multiples of 0.1 Hz)
Lock range ± 1 ppm
Amplitude > –3.5 to 20 dBm (nom)
Impedance 50 Ω (nom)
Digital sweep modes
Operating modes Step sweep (equally or logarithmically spaced
frequency steps)
List sweep (arbitrary list of frequency steps)
Can also simultaneously sweep amplitude.
See amplitude section
for more detail.
Sweep range Within instrument frequency range
Dwell time 100 µs to 100 s
Number of points 2 to 65535 (step sweep)
1 to 1601 (list sweep)
Step change Linear or logarithmic
Triggering Free run, trigger key, external, timer, bus (GPIB, LAN, USB)
Amplitude
Output power
Range
1
Standard Option 1EQ
250 kHz to 2.5 GHz –110 to +13 dBm –127 to +13 dBm
> 2.5 to 3.0 GHz –110 to +10 dBm –127 to +10 dBm
> 3.0 to 4.5 GHz –110 to +13 dBm –127 to +13 dBm
> 4.5 to 5.8 GHz –110 to +10 dBm –127 to +10 dBm
> 5.8 to 6 GHz –110 to +7 dBm –127 to +7 dBm
Maximum available output power
Maximum available output power
18
18
17
17
16
16
15
15
14
14
13
13
Max output power (dBm
Max output power (dBm)
12
12
11
11
10
10
0 1000 2000 3000 4000 5000 6000
0 1000 2000 3000 4000 5000 6000
Frequency (MHz)
Frequency (MHz)
2
1. Quoted specifications between 20 and 30 °C. Maximum output power typically decreases by
0.2 dB/ °C for temperatures outside this range.
2. Settable to –144 dBm with option 1EQ, but unspecified below –127 dBm.
5
Resolution 0.02 dB (nom)
Step attenuator 0 to 130 dB in 5 dB steps, electronic type
Connector 50 Ω (nom)
SWR
≤ 1.4 GHz 1.7:1 (typ)
> 1.4 GHz to 4 GHz 2.3:1 (typ)
> 4.0 GHz to 5.0 GHz 2.4:1 (typ)
> 5.0 GHz to 6.0 GHz 2:2:1 (typ)
Maximum reverse power
Max DC voltage 50 VDC (nom)
250 kHz to 6 GHz 2 W (nom)
Switching speed 1
Type Standard Option UNZ
SCPI mode ≤ 5 ms (typ) ≤ 750 µs
List/Step sweep mode ≤ 5 ms (typ) ≤ 500 µs
Absolute level accuracy
Standard Option 1EQ
250 kHz to 1 MHz ±0.6 dB ±0.7 dB ±1.7 dB
> 1 MHz to 1 GHz ±0.6 dB ±0.7 dB ±1.0 dB
> 1 to 3 GHz ±0.7 dB ±0.9 dB ±1.4 dB
> 3 to 4 GHz ±0.8 dB ±0.9 dB ±1.0 dB
> 4 to 6 GHz ±0.8 dB ±1.1 dB ±1.3 dB
2
[ALC on]
+7 to –60 dBm < –60 to –110 dBm < –110 to –127 dBm
1. Time from receipt of SCPI command or trigger signal to amplitude settled within 0.2 dB when
switching to or from amplitudes < +5 dBm.
2. Quoted specifications between 20 °C and 30 °C. For temperatures outside this range, absolute
level accuracy degrades by 0.01 dB/degree C for frequencies ≤ 4.5 GHz and 0.02 dB/degree C
for frequencies > 4.5 GHz.
6
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