07 | Keysight | M9381A PXIe Vector Signal Generator – Data Sheet
Technical Specifications and Characteristics
Frequency (continued)
Frequency reference (M9300A PXIe frequency reference module)
Reference outputs
100 MHz Out (Out 1 through Out 5)
Amplitude
Connectors
Impedance
10 MHz Out
Amplitude
Connectors
Impedance
OCXO Out
≥ 10 dBm
13 dBm, typical
5 SMB snap-on
50 Ω, nominal
9.5 dBm, nominal
1 SMB snap-on
50 Ω, nominal
Amplitude
Connectors
Impedance
11.5 dBm, nominal
1 SMB snap-on
50 Ω, nominal
Frequency accuracy
Same as accuracy of internal time base or external reference input
Internal timebase
Accuracy
± [(time since last adjustment x aging rate) ± temperature effects ± calibration accuracy]
Frequency stability
Aging rate
Daily
< ± 0.5 ppb/day, after 72 hour warm-up
< ± 0.1 ppm/year, after 72 hours warm-up
< ± 0.6 ppm/10yrs, after 72 hours warm-up
± 5 x 10-8
Yearly
Total 10 years
Achievable initial calibration accuracy (at time of shipment)
Temperature effects
20 to 30 °C
< ± 10 ppb
< ± 50 ppb
Full temperature range
Warm up
5 minutes over +20 to +30 °C, with respect to 1 hour
< ± 0.1 ppm
15 minutes over +20 to +30 °C, with respect to 1 hour
< ± 0.01 ppm
External reference input
Frequency
1 to 110 MHz, sine wave
± 1 ppm, nominal
0 to 10 dBm, nominal
1 SMB snap-on
Lock range
Amplitude
Connector
Impedance
50 Ω, nominal
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