A8 Fractional-N Synthesizer Board - Agilent Technologies E8362B Service Manual

Theory of Operation
Source Group Operation
Table 5-2 Subsweep Frequencies
0 1 0.011 to 0.046 0.011 to 0.046 0.011 to 0.046 0.010 to 0.045 0.010 to 0.045
1 1 0.053 to 0.756 0.053 to 0.756 0.053 to 0.756 0.045 to 0.748 0.045 to 0.748
2 1 0.756 to 1.508 0.756 to 1.508 0.756 to 1.508 0.748 to 1.500 0.748 to 1.500
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
the output of the swept VCO is passed through a divide-by-2 circuit to produce the output
frequencies listed in
the synthesizer output.
5-8
A8 Frac-N A17
Synthesizer LOMA 10
Frequency Frequency
(GHz) (GHz)
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 10.00 to 12.00 10.00 to 12.00 10.00 to 12.00
1.50 to 1.60 6.00 to 6.40 12.00 to 12.80 12.00 to 12.80 12.00 to 12.80
1.60 to 1.90 6.40 to 7.60 12.80 to 15.20 12.80 to 15.20 12.80 to 15.20
1.90 to 2.00 7.60 to 8.00 15.20 to 16.00 15.20 to 16.00 15.20 to 16.00
2.00 to 2.50 8.00 to 10.00 16.00 to 20.00 16.00 to 20.00 16.00 to 20.00
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 10.00 to 10.67 15.00 to 16.00 30.00 to 32.00
2.67 to 3.00 5.33 to 6.00 10.67 to 12.00 16.00 to 18.00 32.00 to 36.00
1.50 to 1.60 6.00 to 6.40 12.00 to 12.80 18.00 to 19.20 36.00 to 38.40
1.60 to 1.67 6.40 to 6.67 12.80 to 13.33 19.20 to 20.00 38.40 to 40.00
1.67 to 1.90 6.67 to 7.60 13.33 to 15.20 10.00 to 11.40 40.00 to 45.60
1.90 to 2.00 7.60 to 8.00 15.20 to 16.00 11.40 to 12.00 45.60 to 48.00
2.00 to 2.08 8.00 to 8.33 16.00 to 16.67 12.00 to 12.50 48.00 to 50.00
Table 5-2. In all other bands, the swept VCO signal is sent directly to
PNA Series Microwave Network Analyzers
A20 LODA A12
(L.O.) Source 20
Frequency Frequency
(GHz) (GHz)
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
6.67 to 7.60 10.00 to 11.40 20.00 to 22.80
7.60 to 8.53 11.40 to 12.80 22.80 to 25.60
8.53 to 10.00 12.80 to 15.00 25.60 to 30.00
Table
Service Guide E8364-90026
E8362B, E8363B, E8364B
A21
SOMA 50
Frequency
(GHz)
(E8363/4B Only)
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
5-2. In band 2,