22 | Keysight | Infiniium DCA-X 86100D Wide-Bandwidth Oscilloscope Mainframe and Modules - Data Sheet
Modules Specifications (Continued)
Specifications describe warranted performance while characteristics provide useful, nonwarranted information and performance.
Characteristics are listed below in italics.
Multiple electrical channel modules
Channel options
Number of channels
N1046A
81F/82F/84F
1/2/4
71F/72F/74F
1/2/4
11F/12F/14F
1/2/4
Electrical channel bandwidth
(maximum) 1
75 GHz
85 GHz
100 GHz
Electrical channel bandwidth settings
(user-selectable)
Transmision time (10 to 90% calculated 7.8, 5.9, 4.7 ps
from TR = 0.35/bandwidth)
Channel-to-channel skew range
RMS noise
45, 60, 75 GHz
45, 60, 75, 85 GHz
7.8, 5.9, 4.7, 4.2 ps
± 100 ps
45, 50, 75, 85, 100, 122 GHz
(characteristic)
7.8, 5.9, 4.7, 4.2, 3.5, < 3.2 ps
± 100 ps
± 100 ps
Characteristic
400, 580, 740 μV
550, 700, 950 μV
400, 580, 740, 860 μV
550, 700, 950, 1150 μV
400, 580, 740, 860, 1005,
2000 μV
550, 700, 950, 1150, 1350, 2000
(characteristic) μV
Maximum
Scale factor (per division)
– Minimum
1 mV/division
1 mV/division
1 mV/division
– Maximum
100 mV/division
100 mV/division
100 mV/division
DC accuracy (VAVG measurement)
– Specified at calibration tempera- ± 2 mV (characteristic)
ture ± 0.5 °C. (Perform a new
module calibration if hardware
skew has been applied.)
– Specified at calibration tempera- ± 2 mV ± 4% of (reading – channel offset)
ture ± 5 °C
DC offset range (referenced from
center of screen)
Input dynamic range (relative to
channel offset)
± 500 mV
± 400 mV
± 500 mV
± 400 mV
± 500 mV
± 400 mV
Maximum input signal
± 2V (+16 dBm)
± 2V (+16 dBm)
± 2V (+16 dBm)
Nominal impedance (characteristic)
50 Ω
50 Ω
50 Ω
How does Keysight test and setup your module?
The N1046A bandwidth is tested using a very fast electrical impulse that is generated by a photodiode driven by a femtosecond optical
impulse source. The high bandwidth photodiode is calibrated and NIST traceable through 110 GHz. For frequencies beyond 110 GHz,
photodiode performance is based on a linear extrapolation of the photodiode response through 110 GHz but test data beyond 110 GHz
is not provided.
User note:
For customers needing the maximum possible bandwidth, the 122 GHz setting is recommended. For customers needing high band-
width with “matched” performance across channels, the 100 GHz setting is recommended.
1. Tuned to be —3 dB (± measurement uncertainty) at stated bandwidth(s) EXCEPT for the 122 GHz setting which is tuned for maximum bandwidth while
keeping channel noise ≤ 2.5 mV RMS.
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