05 | Keysight | M9381A PXIe Vector Signal Generator – Data Sheet
Technical Specifications and Characteristics
Additional information
Definitions for specifications
– Specifications use the normal PLL mode setting, unless
otherwise stated. Narrow loop bandwidth refers to
Temperatures referred to in this document are defined as follows:
specifications using the best wide offset PLL mode setting
AGM938X_VAL_SYNTHESIZER_PLL_MODE_BEST_WIDE_
OFFSET, available in the M938x Vector Signal Generator/CW
Source Instrument Drivers versions 1.2.300 and later.
– Full temperature range = Individual module temperature
of ≤ 75 °C as reported by the module, and environment
temperature of 0 to 55 °C.
– Controlled temperature range = Individual module
temperature of ≤ 55 °C as reported by the module, and
environment temperature of 20 to 30 °C.
– Performance described in this document applies for mod-
ule temperature within ± 5 degrees of IQ alignment, unless
otherwise noted.
Specifications describe the warranted performance of calibrated
instruments. Data represented in this document are specifications
under the following conditions unless otherwise noted.
– When configured for multi-channel, phase-coherent operation
(shared synthesizer configuration), instrument level warranted
specifications only apply to the M9381A which was previously
calibrated with the M9301A synthesizer, showing a valid
calibration indicator. For all other M9381A channels,
specifications revert to typical performance. If using an ex-
ternal LO distribution unit, such as the V2802A LO distribu-
tion network, specifications for all M9381A channels revert to
typical performance.
– Calibrated instruments have been stored for a minimum of
2 hours within the full temperature range
– 45 minute warm-up time
– Calibration cycle maintained
– When used with Keysight M9300A frequency reference and
Keysight interconnect cables
– All graphs contain measured data from one unit and are
representative of product performance within the controlled
temperature range unless otherwise noted.
Characteristics describe product performance that is useful in
the application of the product. Characteristics are often referred
to as Typical or Nominal values and are italicized.
– The specifications contained in this document are subject to
changeꢀ
– Typical describes characteristic performance, which 80% of
instruments will meet when operated within the controlled
temperature range.
– Nominal describes representative performance that is useful
in the application of the product when operated within the
controlled temperature range.
Recommended best practices in use
– Use slot blockers and EMC filler panels in empty module slots
to ensure proper operating temperatures. Keysight chassis
and slot blockers optimize module temperature performance
and reliability of test.
– Set chassis fan to high at environmental temperatures
above 45 °C.
– Maintain temperature stability for best multi-channel phase
coherence
– Set chassis fans to maximum
– Maintain stable ambient temperature
– Perform warm-up with session open and representative
waveform running
KEYSIGHT [ Keysight Technologies ]
