Keysight Technologies N5221A

Keysight N5221A/22A Service Guide 5-9
Theory of Operation
Synthesized Source Group Operation
A4, A13, and A11 13.5 GHz Synthesizer Boards
The A13 13.5 GHz synthesizer board is included only on 4-port models.
The A4, A11, and A13 13.5 GHz synthesizer boards use the 50 MHz reference
signal from the A14 frequency reference board to tune a VCO circuit that
sweeps from 2 GHz to 4 GHz.
Band Mixer
Brick
L.O.
Harm.
Nmbr.
(N)
➊
A11
Synthesizer
Frequency (GHz)
➋
A25
HMA26.5
Frequency (GHz)
➌
A4/A13
Synthesizer
Frequency (GHz)
➍
A5/A8
Source
Frequency (GHz)
0- - - - -
1- - - - -
2 1 0.01083 to 0.05383 0.01083 to 0.05383 0.010 to 0.053 0.010 to 0.053
3 1 0.06044 to 0.18244 0.06044 to 0.18244 0.053 to 0.175 0.053 to 0.175
4 1 0.18244 to 0.25744 0.18244 to 0.25744 0.175 to 0.250 0.175 to 0.250
5 1 0.25744 to 0.50744 0.25744 to 0.50744 0.250 to 0.500 0.250 to 0.500
6 1 0.50744 to 1.0074 0.50744 to 1.0074 0.500 to 1.000 0.500 to 1.000
7 1 1.0074 to 2.0074 1.0074 to 2.0074 1.000 to 2.000 1.000 to 2.000
8 1 2.0074 to 3.0074 2.0074 to 3.0074 2.000 to 3.000 2.000 to 3.000
9 1 3.0074 to 3.2074 3.0074 to 3.2074 3.000 to 3.200 3.000 to 3.200
10 1 3.2074 to 4.0074 3.2074 to 4.0074 3.200 to 4.000 3.200 to 4.000
11 1 4.0074 to 5.3394 4.0074 to 5.3394 4.000 to 5.332 4.000 to 5.332
12 1 5.3394 to 6.7594 5.3394 to 6.7594 5.332 to 6.752 5.332 to 6.752
13 1 6.7594 to 8.0074 6.7594 to 8.0074 6.752 to 8.000 6.752 to 8.000
14 1 8.0074 to 10.6714 8.0074 to 10.6714 8.000 to 10.664 8.000 to 10.664
15 1 10.6714 to 13.5174 10.6714 to 13.5174 10.664 to 13.510 10.664 to 13.510
16 1 6.7587 to 7.7037 13.5174 to 15.4074 6.755 to 7.700 13.510 to 15.400
17 1 7.7037 to 8.0037 15.4074 to 16.0074 7.700 to 8.000 15.400 to 16.000
18 1 9.5037 to 10.0037 19.0074 to 20.0074 9.500 to 10.000 9.500 to 10.000
19 1 10.0037 to 10.6677 20.0074 to 21.3354 10.000 to 10.664 10.000 to 10.664
20 1 10.6677 to 12.0037 21.3354 to 24.0074 4.000 to 5.332 4.000 to 5.332
21 1 12.0037 to 13.2537 24.0074 to 26.5074 12.000 to 13.250 12.000 to 13.250