A8 Fractional-N Synthesizer Board - Agilent Technologies E8362C Service Manual

Theory of Operation
Source Group Operation
Table 5-2 Subsweep Frequencies
0 1 0.011 to 0.046
1 1 0.053 to 0.756
2 1 0.756 to 1.508
3 1
4 1
5 1
6 1
7 1
8 1
9 1
10 1
11 1
12 1
13 1
14 1
15 1
16 3
17 3
18 3
19 3
20 3
21 3
22 3
23 3
24 3
25 3

A8 Fractional-N Synthesizer Board

The A8 fractional-N synthesizer board uses the 5 MHz reference signal from the A10 frequency reference
board to tune two VCO circuits: one that sweeps from 1500 to 3010 MHz and one that is set to a CW
frequency of 2250 MHz. In bands 0–1, these two signals are heterodyned to produce the output frequencies
listed in Table 5-2. In band 2, the output of the swept VCO is passed through a divide-by-2 circuit to produce
the output frequencies listed in
synthesizer output.
5-8
A8 Frac-N A17
Synthesizer LOMA 10
Frequency Frequency
(GHz) (GHz)
0.011 to 0.046
0.053 to 0.756
0.756 to 1.508
1.50 to 3.00 1.50 to 3.00
1.50 to 1.90 3.00 to 3.80
1.90 to 2.25 3.80 to 4.50
2.25 to 2.40 4.50 to 4.80
2.40 to 3.00 4.80 to 6.00
1.50 to 1.60 6.00 to 6.40
1.60 to 1.90 6.40 to 7.60
1.90 to 2.50 7.60 to 10.00
2.50 to 3.00 5.00 to 6.00
1.50 to 1.60 6.00 to 6.40
1.60 to 1.90 6.40 to 7.60
1.90 to 2.00 7.60 to 8.00
2.00 to 2.50 8.00 to 10.00
1.67 to 1.90 6.67 to 7.60
1.90 to 2.13 7.60 to 8.53
2.13 to 2.50 8.53 to 10.00
2.50 to 2.67 5.00 to 5.33
2.67 to 3.00 5.33 to 6.00
1.50 to 1.60 6.00 to 6.40
1.60 to 1.67 6.40 to 6.67
1.67 to 1.90 6.67 to 7.60
1.90 to 2.00 7.60 to 8.00
2.00 to 2.08 8.00 to 8.33
Table 5-2. In all other bands, the swept VCO signal is sent directly to the
PNA Series Microwave Network Analyzers
A20 LODA (L.O.) A12
Frequency Source 20
(GHz) Frequency (GHz)
0.011 to 0.046 0.010 to 0.045
0.053 to 0.756 0.045 to 0.748
0.756 to 1.508 0.748 to 1.500
1.50 to 3.00 1.50 to 3.00
3.00 to 3.80 3.00 to 3.80
3.80 to 4.50 3.80 to 4.50
4.50 to 4.80 4.50 to 4.80
4.80 to 6.00 4.80 to 6.00
6.00 to 6.40 6.00 to 6.40
6.40 to 7.60 6.40 to 7.60
7.60 to 10.00 7.60 to 10.00
10.00 to 12.00 10.00 to 12.00
12.00 to 12.80 12.00 to 12.80
12.80 to 15.20 12.80 to 15.20
15.20 to 16.00 15.20 to 16.00
16.00 to 20.00 16.00 to 20.00
6.67 to 7.60 10.00 to 11.40
7.60 to 8.53 11.40 to 12.80
8.53 to 10.00 12.80 to 15.00
10.00 to 10.67 15.00 to 16.00
10.67 to 12.00 16.00 to 18.00
12.00 to 12.80 18.00 to 19.20
12.80 to 13.33 19.20 to 20.00
13.33 to 15.20 10.00 to 11.40
15.20 to 16.00 11.40 to 12.00
16.00 to 16.67 12.00 to 12.50
Service Guide E8364-90038
E8362C, E8363C, E8364C
A21
SOMA 50
Frequency (GHz)
(E8363/4C Only)
0.010 to 0.045
0.045 to 0.748
0.748 to 1.500
1.50 to 3.00
3.00 to 3.80
3.80 to 4.50
4.50 to 4.80
4.80 to 6.00
6.00 to 6.40
6.40 to 7.60
7.60 to 10.00
10.00 to 12.00
12.00 to 12.80
12.80 to 15.20
15.20 to 16.00
16.00 to 20.00
20.00 to 22.80
22.80 to 25.60
25.60 to 30.00
30.00 to 32.00
32.00 to 36.00
36.00 to 38.40
38.40 to 40.00
40.00 to 45.60
45.60 to 48.00
48.00 to 50.00