
PCIe 3.0 Calibration Channels
N4915A-014
-25
-20
-15
-10
-5
0
1 1.5 2 2.5 3 3.5 4
Breakout + Short Calibration Channel
Breakout + Long Calibration Channel
Frequency / GHz
S
21
/ dB
-20 ± 2dB
-12 ± 2dB
-2.5 ± 1dB
-1.0 ± 1dB
-4.0 ± 1dB
-6.5 ± 1.5dB
ISI Channels in external box (similar to SATA)
Connectors: SMA/3.5mm female
Includes suitable coupler on their input to add Interference such that
BW high enough matching subsequent channel
-
suited for N4916B 14G (hi-want: suited for existing N4916B)
Loss such that
the whole test set-up fulfils
the PCIe3 base specs
(orange-green & orange-blue)
assuming 2.5dB @ 4GHz
for the break-out channel
4.
breakout
short+ breakout
long+breakout
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