N5194A矢量适配器数据表.pdf - 第5页

Page 5 Find us at www .keysight.com CW RF output Output undefined Input trigge r Latency Tr ansition time Output undefined Latency Tr ansition time Figure 1 . Switching speed definitions with input trigg er Switch ing sp…

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Latency (Nominal values)
Frequency
transitions
Transition details External LO mode,
narrowband,
nominal (µs)
External LO
mode, wideband,
nominal (µs)
Internal LO mode,
nominal (µs)
Internal LO mode,
Optimized
2
,
nominal (µs)
Within lower band Within main lower
band
3 2.5 3.5 3.5
Other transitions 3 2.5 3.5 —
Within upper band Within main upper
band
5 4.5 — —
Within upper
sub–bands
3
3 2.5 — —
Other transitions 5 4.5 — —
Between lower and
upper bands
Between main lower
and main upper
bands
5.5 5 — —
Other transitions 5.5 5 — —
RF phase settling criteria
Final frequency
10 MHz to < 2.85 GHz Measured to phase settled within 0.1 radians of final phase
2.85 GHz to < 8.64 GHz Measured to phase settled within 0.2 radians of final phase
8.64 GHz to < 17.3 GHz Measured to phase settled within 0.3 radians of final phase
≥ 17.3 GHz Measured to phase settled within 0.4 radians of final phase
Update rate (Transition time)
1
Frequency
transitions
Transition details External LO mode,
narrowband, spec
(typ)
External LO mode,
wideband, spec
(typ)
Internal LO mode,
spec (typ)
Internal LO mode,
Optimized
2
, spec
(typ)
Within lower band Within Main Lower
band
250 ns (190 ns) 220 ns (170 ns) 740 ns (470 ns) (210 ns)
Other transitions (250 ns) (220 ns) (250 ns) —
Within upper band Within Main Upper
Band
4.5 µs (2.5 µs) 4.5 µs (2.5 µs) — —
Within upper
sub–bands
3
(250 ns) (220 ns) — —
Other transitions (3.3 µs) (3.3 µs) — —
Between lower and
upper bands
Between Main
Lower and Main
Upper Bands
7 µs (4.3 µs) 7 µs (4.1 µs) — —
Other transitions (8 µs) (8 µs) — —
1. Update Rate is determined by the transition time as measured from the start of the RF transition (where the frequency, amplitude and phase are undefined)
to RF amplitude and phase settled. Latency is measured from the input trigger to RF amplitude and phase settled. For frequency transitions with typical
transition times of 2.5 us or longer, pre-pulse PDWs must be injected prior to the desired RF pulse to create clean pulses (except when using Simulation
View). Detailed descriptions of these pre-pulse PDWs can be found in the User’s Guide in the “Pre-Pulse PDW” section.
2. Optimized Mode applies when switching start frequency is not within any of the following 3 zones: (0 to 2.5 GHz) or (6.5 to 8 GHz) or (10 to 11.5 GHz), or stop
frequency is not within any of the following 2 zones: (13 to 14 GHz) or (18.5 to 20 GHz).
3. Upper sub bands include: 20.000000016 GHz to < 24.0 GHz
24.0 GHz to < 28.5 GHz
28.5 GHz to < 32 GHz
32 GHz to < 34 GHz
34 GHz to < 36 GHz
36 GHz to < 40.1 GHz
40.1 GHz to < 42 GHz
42 GHz to < 43.3 GHz
43.3 GHz to 44 GHz
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CW RF output
Output undefined
Input trigger
Latency
Transition time
Output undefined
Latency
Transition time
Figure 1. Switching speed definitions with input trigger
Switching speed for N5192A
1, 2
External LO mode, narrowband, nom External LO mode, wideband, nom
Update rate (transition time between
pulses in streaming)
101 µs 101 µs
1. For streaming mode only. Update rate refers to the transition time from the finishing of the leading pulse to the phase and amplitude settled in the following
pulse. The diagram in N5194A section doesn’t apply.
2. The N5192A does not have specified phase repeatability.
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Additional contributors to switching speed
With LAN or USB control Add 900 µs (nom) from receipt of SCPI command
RF phase settling criteria
Final frequency
10 MHz to < 2.85 GHz Measured to phase settled within 0.1 radians of final phase
2.85 GHz to < 8.64 GHz Measured to phase settled within 0.2 radians of final phase
8.64 GHz to < 17.3 GHz Measured to phase settled within 0.3 radians of final phase
≥ 17.3 GHz Measured to phase settled within 0.4 radians of final phase
RF amplitude settling criteria
50 MHz to 40 GHz Measured to amplitude settled to within 1 dB of final amplitude
Amplitude
Maximum CW power
1, 2
Option 520 or 52E Max available power Max specified power
Frequency External LO mode,
dBm spec (typ)
Internal LO mode,
dBm spec (typ)
External LO mode,
dBm spec
Internal LO mode,
dBm spec
10 MHz to < 2.5 GHz +6 (+7) +6 (+7) +3 +3
2.5 GHz to 4 GHz +7 (+8) +6 (+9) +3 +3
> 4 GHz to 14 GHz +7 (+10 ) +4 (+7) +3 +3
> 14 GHz to 18 GHz +6 (+8) +6 (+8) +3 +3
> 18 GHz to 20 GHz +1 (+4) –1 (+3) +1 –2
Option 540 Max available power Max specified power
Frequency External LO mode,
dBm spec (typ)
Internal LO mode,
dBm spec (typ)
External LO mode,
dBm spec
Internal LO mode,
dBm spec
10 MHz to < 2.5 GHz +5 (+7) +5 (+7) +3 +3
2.5 GHz to 4 GHz +5 (+8) +5 (+7) +3 +3
> 4 GHz to 14 GHz +5 (+7) +4 (+6) +3 +3
> 14 GHz to 18 GHz 0 (+3) 0 (+3) 0 0
> 18 GHz to 20 GHz –4 (0) –4 (0) –4 –4
> 20 GHz to 35 GHz –2 (+1) N/A –2 N/A
> 35 GHz to 40 GHz –5 (–1) N/A –5 N/A
1. Maximum CW power specifications are warranted from 15 to 40 ˚C. Maximum power in the 40 to 50 ˚C temperature range typically degrades less than 1 dB.
2. Instrument specifications are based on max specified power, unless otherwise stated. When operating at max available power, spectral purity will be
degraded.