16 | Keysight | M9391A PXIe Vector Signal Analyzer - Data Sheet
Technical Specifications and Characteristics
Data acquisition
Maximum capture memory
Option M01
Non-list mode
List mode
128 MSample (512 MB)
512 MSample (2 GB)
1 GSample (4 GB)38
128 MSample (512 MB)
512 MSample (2 GB)
Option M05
Option M10
512 MSample (2 GB) to ~ 1 GSample
(3.999 GB) 39
Segments
Minimum length
1 sample 40
Maximum length
Full capture memory 38
Maximum sample rate
Option B04 / 40 MHz
Option B10 / 100 MHz
Option B16 / 160 MHz
List mode
50 MS/s complex, 100 MS/s real
125 MS/s complex, 250 MS/s real
200 MS/s complex, 400 MS/s real
Maximum number of segments
Trigger sources
3201
External, magnitude
Per acquisition, interval timer trigger
Trigger modes
Triggering
Delay range 41
−500 ms to +500 ms, nominal
1 sample, nominal
10 to 30 MHz for pulse
TTL
Delay resolution
External trigger signal frequency range
External trigger signal level
External trigger signal duty cycle range
External trigger signal waveform
20% to 80%
Sine, pulse/square, ramp (symmetry 0% to 100%)
Channel-to-channel synchronization 42
Timing
Phase
Skew
Jitter 43
Repeatability 44
Adjustment resolution 45
Drift over 12 hours
≤400 ps, nominal
≤50 ps, nominal
≤80 ps, nominal
50 ps
–
≤0.3°, nominal
≤1.0°, nominal
0.05°
20 ps, nominal
0.5°, nominal
38. The default mode for allocation of capture memory is AgM9391MemoryModeNormal, where the digitizer’s memory is shared by both the default
single acquisition (capture ID = 0) and all the other acquisitions with non-zero capture IDs. In particular, the memory for the default single
acquisition is allocated from the area unused by the list acquisitions. If the available memory is not sufficient for the single acquisition, the user
must release memory allocated for the non-zero capture ID acquisitions manually, thus increasing free space. Total memory usage is limited
according to the memory option. Note that the maximum size of acquisition is 2 GB in this mode. To perform the default single acquisition with
memory size larger than 2 GB, AgM9391MemoryModeLargeAcquisition must be selected. The non-zero capture ID acquisitions cannot be per
formed in this mode. All data acquired with AGM9391MemoryMode Normal will be invalidated.
39. The maximum size for a single list point capture is limited to 512 MSamples (2 GB). However, with option M10, total capture of up to 3.999 GB
is available across all list mode captures.
40. 64-bit mode, 2 samples for 32-bit mode.
41. Negative trigger delay limited to capture size.
42. Multi-channel capability only supported with up to 8-channels when configured with a Keysight M9018A PXIe chassis with FPGA version 1.05 or greater.
Characteristics measured at 400, 900, 2400, 5800 MHz and apply in Auto Conversion mode at frequencies ≥400 MHz with IF filter = 160 MHz. V2802A LO
distribution network used for phase synchronization for more than 4 channels.
43. Jitter indicates measurement-to-measurement variation and applies over short time interval at room temperature without resetting or reinitializing a driver
session.
44. Repeatability indicates stability of alignment between channels across power cycles and IVI sessions, with identical cabling and hardware settings
(frequency, span, sample rate, etc.)
45. Channel time and phase offsets can be adjusted using OffsetDelay and OffsetPhase properties respectively.
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