2.7 GHz RF Vector Signal Generator
Specifications
Valid over specified Operating Environment (0 to 55 °C) unless otherwise stated.
Residual FM ..................................................... 4.5 Hz rms maximum (continuous wave,
300 Hz to 3 kHz integration bandwidth)
General
Channels .......................................................... 1 RF, 1 IF
Spurious Responses
Second harmonic (>10 MHz) 0 to 55 °C .......... <_ –45 dBc
Output third-order distortion (IMD)
(two -6 dBm tones, >200 kHz apart) ......... <–86 dBc typical
Residual spurious response
Frequency Characteristics
Frequency range............................................... 250 kHz to 2.7 GHz
Frequency minimum (performance below
250 kHz not guaranteed) ........................... 9 kHz
Real-time bandwidth (Digital vector
modulation bandwidth) ............................. 22 MHz
Locking range ................................................... 5 Hz minimum
Warm-up time (typical) .................................... 30 minutes
Frequency Resolution (dependent on NI PXI-5421 memory)
8 MB .......................................................... 25 Hz
32 MB ........................................................ 6.2 Hz
256 MB ...................................................... 0.6 Hz
(no input signal, 0 dB attenuation/maximum
power level, excluding LO feedthrough) ... <–80 dBc typical
NI PXI-5421 system clock rate......................... 100 MHz
Harmonic and spurious response.............. –105 dBm typical
Output-related spurious
response (nonharmonic) ............................ –80 dBc maximum
(6400 MHz – RF output frequency) ................. –64 dBc typical, –58 dBc maximum
Close-in Spurious Responses (Carrier-Modulated)
Spurious Response
Tuning Speed
Sine wave, 50 Hz resolution
Thermal correction disabled...................... 35 ms typical
Thermal correction enabled ...................... 50 ms max
Real-Time Bandwidth
Offset from Carrier
<100 Hz
100 Hz to 10 kHz
<400 Hz
Maximum Power (dBc)
<10 MHz
<-50
<-60
<-40
-50
>10 MHz
1 MS record, phase continuity off
100 Hz to 2 kHz
Digital IF equalization off.......................... 340 ms typical 370 ms max
Digital IF equalization on........................... 950 ms typical 1.6 s max
Note The NI PXI-5670 tuning speed and tuning resolution depend on resampling done by the PC. This means that fine resolution
tuning speed is dependent on the speed and memory of the computer. Specifications below are the result of using an NI PXI 8186
Pentium IV controller 2.2 GHz with 512 MB RAM with the Windows XP operating system and NI-RFSG phase continuity disabled.
RF Output Characteristics
Output power range ......................................... -145 dBm to +13 dBm minimum
Amplitude resolution
PXI-5670..................................................... 0.02 dB minimum
PXI-5610..................................................... 1 dB typical
Amplitude settling time PXI-5610
<0.1 dB within 150 ms maximum
<0.01 dB within 300 ms maximum
Internal Frequency Reference
Frequency ......................................................... 10 MHz
Temperature stability ....................................... 20 ppb max (referenced to 25 °C)
Aging
Per year...................................................... 100 ppb
Per day....................................................... 1 ppb
Initial achievable accuracy............................... 50 ppb
Lock time for the 5610
Level Accuracy
to ext frequency reference........................ 5 s max
Locking range ................................................... 5 Hz minimum
Reference Input................................................ 50 Ω SMA female
Input amplitude ......................................... -5 to +16 dBm
Input frequency range ............................... 10 MHz 0.5 ppm
Reference Output ............................................. 50 Ω SMA female
Signal......................................................... Square wave
Output Frequency ...................................... 10 MHz
Output Amplitude ...................................... 6.7 dBm into 50 Ω load, fundamental frequency
(1 0.1 Vpp sine wave)
Spectral purity
Phase Noise
Figure 2. Typical Output Power Level Accuracy from -45 dBm to +10 dBm
–50.0
–55.0
–60.0
Output Power Range
Output Frequency
250 kHz to 10 MHz (typical)
10 MHz to 2.7 GHz
+7 to -30 dBm -30 to -80 dBm -80 to -127 dBm 1 <-127 dBm (typical) 1
–65.0
–70.0
–75.0
1.2 dB
0.7 dB
1.3 dB
0.8 dB
1.5 dB
1 dB
2 dB
1.5 dB
–80.0
–85.0
25 °C 10 °C.
–90.0
–95.0
Accuracy degrades by < 0.03 dB per °C over full temperature range.
–100.0
–105.0
–110.0
–115.0
–120.0
–125.0
–130.0
Accuracy degrades by 0.1 dB per dB above +7 dBm power levels, and by 0.15 dB per dB above +10 dBm power levels.
1 At nonsystem spur frequencies with attenuator hold mode. Refer to the Spurious Responses section for more information.
Voltage Standing Wave Ratio (VSWR)
10 MHz to 2.3 GHz .................................... <1.6:1
2.3 to 2.7 GHz............................................ <1.7:1
10
100
1k
10k
100k
1M
Offset From Carrier (Hz)
Figure 1. Typical Phase Noise at 1 GHz with Real-Time Bandwidth <10 MHz
Output 1 dB Gain Compression Point (minimum)
Output Frequency (GHz)
15 to 35 °C (dBm)
0 to 55 °C (dBm)
Real-time bandwidth <10 MHz
Up to 2.0
2.0 to 2.5
2.5 to 2.7
17
15.5
14.5
16
14
13
Offset Frequency
100 Hz
Carrier Frequency = 1 GHz
–82 dBc/Hz maximum
–87 dBc/Hz maximum
–93 dBc/Hz maximum
–114 dBc/Hz maximum
Carrier Frequency = 2 GHz
–79 dBc/Hz maximum
–85 dBc/Hz maximum
–92 dBc/Hz maximum
–111 dBc/Hz maximum
1 kHz
10 kHz
100 kHz
Noise density (0 dBm output)
Output Power Level (dBm)
15 to 35 °C (dBm/Hz)
0 to 55 °C (dBmHz)
0
-20
-120
-140
-115
-135
Real-time bandwidth >10 MHz
Carrier Frequency = 1 GHz
–72 dBc/Hz maximum
–75 dBc/Hz maximum
–100 dBc/Hz maximum
–120 dBc/Hz maximum
Offset Frequency
100 Hz
Carrier Frequency = 2 GHz
–70 dBc/Hz maximum
–72 dBc/Hz maximum
–98 dBc/Hz maximum
–119 dBc/Hz maximum
1 kHz
10 kHz
100 kHz
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