5-8
Service Guide E8364-90026
Theory of Operation
PNA Series Microwave Network Analyzers
Source Group Operation
E8362B, E8363B, E8364B
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
. In band 2,
the output of the swept VCO is passed through a divide-by-2 circuit to produce the output
frequencies listed in
. In all other bands, the swept VCO signal is sent directly to
the synthesizer output.
Table 5-2
Subsweep Frequencies
Mo
d
e
l
Ba
n
d
L.O
. H
a
rmonic
Numbe
r
(
N
)
A8 Frac-N
Synthesizer
Frequency
(GHz)
A17
LOMA 10
Frequency
(GHz)
A20 LODA
(L.O.)
Frequency
(GHz)
A12
Source 20
Frequency
(GHz)
A21
SOMA 50
Frequency
(GHz)
(E8363/4B Only)
E8362B
, E
8
363B,
E836
4B
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
1.50 to 3.00
1.50 to 3.00
1.50 to 3.00
1.50 to 3.00
1.50 to 3.00
4
1
1.50 to 1.90
3.00 to 3.80
3.00 to 3.80
3.00 to 3.80
3.00 to 3.80
5
1
1.90 to 2.25
3.80 to 4.50
3.80 to 4.50
3.80 to 4.50
3.80 to 4.50
6
1
2.25 to 2.40
4.50 to 4.80
4.50 to 4.80
4.50 to 4.80
4.50 to 4.80
7
1
2.40 to 3.00
4.80 to 6.00
4.80 to 6.00
4.80 to 6.00
4.80 to 6.00
8
1
1.50 to 1.60
6.00 to 6.40
6.00 to 6.40
6.00 to 6.40
6.00 to 6.40
9
1
1.60 to 1.90
6.40 to 7.60
6.40 to 7.60
6.40 to 7.60
6.40 to 7.60
10
1
1.90 to 2.50
7.60 to 10.00
7.60 to 10.00
7.60 to 10.00
7.60 to 10.00
11
1
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
12
1
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
13
1
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
14
1
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
15
1
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
E8363B
, E83
64B
16
3
1.67 to 1.90
6.67 to 7.60
6.67 to 7.60 10.00 to 11.40 20.00 to 22.80
17
3
1.90 to 2.13
7.60 to 8.53
7.60 to 8.53 11.40 to 12.80 22.80 to 25.60
18
3
2.13 to 2.50
8.53 to 10.00
8.53 to 10.00 12.80 to 15.00 25.60 to 30.00
19
3
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
20
3
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
21
3
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
22
3
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
E
8
364B
23
3
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
24
3
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
25
3
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
Summary of Contents for E8362B
Page 11: ...Service Guide E8364 90026 1 1 1 Safety and Regulatory Information ...
Page 19: ...Service Guide E8364 90026 2 1 2 General Product Information ...
Page 33: ...Service Guide E8364 90026 3 1 3 Tests and Adjustments ...
Page 83: ...Service Guide E8364 90026 4 1 4 Troubleshooting ...
Page 151: ...Service Guide E8364 90026 5 1 5 Theory of Operation ...
Page 185: ...Service Guide E8364 90026 6 1 6 Replaceable Parts ...
Page 269: ...Service Guide E8364 90026 7 1 7 Repair and Replacement Procedures ...
Page 351: ...Service Guide E8364 90026 8 1 8 General Purpose Maintenance Procedures ...