T0790 Datasheet, PDF (7/14 Pages) ATMEL Corporation – 700 MHz - 2700 MHz Direct Quadrature Modulator

4555C–SIGE–11/03
T0790 [Preliminary]
Figure 6. Sideband Suppression versus LO Frequency
Sideband Suppression vs. LO Frequency
50
46
42
38
34
30
700 750 800 850 900 950 1000
LO Frequency (MHz)
Figure 7. Intermodulation Distortion versus SSB Output Power
Intermodulation Distortion vs.
SSB Output Power @880 MHz
0
-20
-40
fundamental (each t one)
3rd intermod.(each tone)
-60
-80
-100
-12 -10 -8 -6 -4 -2 0 2 4 6
BB Input Level (dBVp-p diff.)
Figure 8. RF and LO Return Losses
0
10
20
30
40
700
RF & LO Port Return Losses
RFPort
LO Port
750
800
850
900
Frequency (MHz)
950
1000
7