Keysight Technologies N9030B, Руководство по обслуживанию

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PXA REFERENCE and
SYNTHESIZER BLOCK DIAGRAM
blockpxa_ref_synth
A16 REFERENCE
A16A1 REFERENCE DAUGHTER
W18 to A13J1
W3 to A9
W33 to A13J6
W36 to A2J300
EXT ECAL IN
W32 to A14J10
W39 to A3J14
W35 to A19J101 (Opt BBA)
W47 to A3J17 or
W46 to A25J806
W34 to A25J301
2nd LO
CAL OUT
ECAL OUT
300 MHz LO_AIF
100 MHz LO_SYNTH
+10 dBm
+10 dBm
+13 dBm
+13 dBm
100 MHz REF_A
100 MHz REF_B
100 MHz REF_C
2nd LO
EXT FE CAL INPUT
2.4 GHz Ref
J702 +11 dBm
J725 J724
J701
J705
J714
J711
J706
J707
J716
J717
J703 Note 1
Note 1
J726
J718 +10 dBm
50 MHz -25 dBm
4.8 GHz -28 dBm
-26 to -29 dBm
X8
X2
10 MHz
10 MHz
1 - 50 MHz
10 MHz
300 MHz
SAW
300 MHz
J704
W37
EXT REF INPUT
(rear panel)
100 MHz
2400 MHz
SAW VCO
4.8 GHz
2400 MHz
ALC
ALC
ALC
50 MHz
4.8 GHz
300 MHz
HP HP
LP
LP
f
f
O
f
O
O
DAC
HARMONIC
GEN
COMB
GEN
MOD
COMB
SER
LVDS
10 dB
J723
2
10
R
NF
1 to 16
Card Cage
Connector
Card Cage
Connector
10 MHz OUT_DIF
J710
X3
A14 LO SYNTHESIZER
MAIN LOOP
OFFSET LOOP
0 TO 4.2 GHz
4.8 GHz
3.5 to
9.06 GHz
2.28 to 4.5 GHz
SERIAL
DATA PLL MUX OUT
to FPGA
3
4.5 to 9.06 GHz
16.6 or
33.3 MHz
SWITCHED BPF
1.14 to
2.3 GHz
3.8 TO
8.73 GHz
A20 YTO
A13A1 Front End
J1
J4
J10
FN
CONTROLLER
MAIN LOOP
CONTROL
(from A8)
W31
4800 MHz
1st LO Ref
(from A16)
100 MHz
LO/SYNTH
Ref
(from A16)
W32
Serial Bus &
Sync/Swp Signals
From Serial
Offset PLL
FPGA
LO
CONTROLLER
Pretune
DAC
FRACTIONAL
N
DIVIDER
YTO MAIN
and FM COIL
DRIVERS
Single
Loop
50 MHz
Note 3
Note
3
16.6 or 33.3 MHz
Single
Loop
Dual
Loop
33 to 55 MHz
Dual
Loop
LO
DISTRIBUTION
2, 3
or 6
OFFSET
LOOP
CONTROL
S
S
IF
RF
LO
IF
RF
LO
YTO
DRIVER
+10 dBm
+10 dBm
+9 dBm
Note 2
W20
W21
SYNTH
OUT
J5
J4
J20
J25
W23
J3
W19
to A13A2
SWITCHED
FILTER
To Mixer 1
To Mixer 2
and Mixer 3
f
f
O
O
X2
X2
PROGRAMMABLE
DIVIDER/COUNTER
S
2
Band Tuning Equation
NOTES
1
3
0 - 3.6 GHz
3.6 - 8.4 GHz
8.4 - 13.6 GHz
13.6 - 17.1 GHz
17.1 - 26.5 GHz
YTO = Tuned Freq + 5.1225 GHz
YTO = Tuned Freq + 322.5 GHz
YTO = (Tuned Freq + 322.5 MHz) / 2
YTO = (Tuned Freq + 322.5 MHz) / 4
YTO = (Tuned Freq + 322.5 MHz) / 2
Power Level is ~ +3 dBm in Dual-Loop mode and ~ -20 dBm in Single-Loop mode.
When autocoupled, spans > 10 MHz are Single-Loop spans
and < 10 MHz are Dual-Loop spans.
The Tuning Equation below shows the relationship between the YTO frequency (1st LO) and
the Tuned Frequency.
2
26.4 - 34 GHz YTO = (Tuned Freq + 322.5 MHz) / 4
34 - 50 GHz YTO = (Tuned Freq + 322.5 MHz) / 8