0
-10
OUTPUT LEVEL (dBm)
OUTPUT LEVEL (dBm)
0
DSB OUTPUT (EACH SIDEBAND)
0
-10
-20
-30
-40
-50
-60
-70
-30
-40
-50
-60
-70
-80
-90
-100
0
100
200
300
400
500
600
IM3 OUTPUT
OUTPUT LEVEL (dBm)
-20
SIDEBAND OUTPUT
-10
-20
-30
-40
-50
-60
-70
-80
SUPPRESSED SIDEBAND
0
CARRIER
SIDEBAND OUTPUT
CARRIER
-80
SUPPRESSED SIDEBAND
0
100
200
300
400
500
600
i,q AMPLITUDE (Vpk)
-90
200
400
600
800
i,q AMPLITUDE (Vpk)
LOmod FREQUENCY (MHz)
Figure 7. Modulator Only DSB Output
Power Level and IM3 Level vs. i,q
Input Amplitude (Each Pin, Relative
to Ground).
Figure 8. Modulator Only SSB Mode
Performance vs. i,q Input Amplitude
(Each Pin, Relative to Ground).
Figure 9. Modulator Only SSB Output
Power, Carrier and Sideband
Suppression vs. LOmod Frequency.
0
-10
OUTPUT LEVEL (dBm)
0
-10
OUTPUT LEVEL (dBm)
0
-20
OUTPUT LEVEL (dBm)
-20
-30
-40
-50
-60
-70
-80
-25
SIDEBAND OUTPUT
-20
-30
-40
-50
-60
-70
SIDEBAND OUTPUT
-40
-60
-80
-100
CARRIER
CARRIER
SUPPRESSED
SIDEBAND
-15
-5
5
-80
0.5
SUPPRESSED SIDEBAND
1
1.5
2
2.5
-120
149.615
149.67
FREQUENCY (MHz)
149.725
LOmod INPUT POWER (dBm)
i,q OFFSET LEVEL (VOLTS)
Figure 10. Modulator Only SSB
Performance vs. LOmod Input Level.
Figure 11. Modulator Only SSB
Performance vs. i,q Offset Level
(Each Pin, Relative to Ground).
Figure 12. Modulator Only SSB
Output Spectrum at 150 MHz.
0
-10
0
-10
OUTPUT LEVEL (dBm)
-20
-30
-40
-50
SUPPRESSED SIDEBAND
6
0
SIDEBAND OUTPUT
-10 V
CC
= 5 V
OUTPUT LEVEL (dBm)
OUTPUT LEVEL (dBm)
SIDEBAND OUTPUT
SIDEBAND OUTPUT
-20
-30
-40
SUPPRESSED SIDEBAND
-50
-60
LOmix + LOmod LEAK
2
3
4
V
CC
(VOLTS)
5
-20
-30
-40
V
CC
= 3 V
LOmix + LOmod LEAK
LOmix + LOmod LEAK
-50
-60
SUPPRESSED
SIDEBAND
-15
10
35
60
85
-60
-25
-20
-15
-10
-5
0
5
-70
-40
LOmix POWER INPUT (dBm)
TEMPERATURE (°C)
Figure 13. Modulator + Mixer SSB
Output Levels vs. V
CC
.
Figure 14. Modulator + Mixer SSB
Output Levels vs. LOmix Power Input.
Figure 15. Modulator + Mixer SSB
Output Levels vs. Temperature and V
CC
.
7-78
AGILENT [ AGILENT TECHNOLOGIES, LTD. ]
