adl5386 Analog Devices, Inc., adl5386 Datasheet - Page 14

• Manufacturer Part Number: adl5386
• Description: 50 Mhz To 2200 Mhz Quadrature Modulator With Integrated Detector And Vva
• Manufacturer: Analog Devices, Inc.

ADL5386
Figure 16. Sideband Suppression Distribution vs. LO Amplitude
Figure 15. Carrier Feedthrough Distribution vs. LO Amplitude
–20
–30
–40
–50
–60
–70
–80
–90
–20
–30
–40
–50
–60
–70
–80
–90
–20
–30
–40
–50
–60
–70
Figure 17. Sideband Suppression vs. Baseband Frequency,
–7
–7
1
–6
–6
Output Frequency = 350 MHz
–5
–5
at 50 MHz and 350 MHz
at 50 MHz and 350 MHz
BASEBAND FREQUENCY (MHz)
–4
–4
LO AMPLITUDE (dBm)
LO AMPLITUDE (dBm)
–3
–3
10
–2
–2
–1
–1
0
0
50MHz
350MHz
50MHz
350MHz
1
1
100
2
2
Rev. 0 | Page 14 of 36
Figure 20. 20 MHz Offset Noise Floor Distribution, Output Frequency = 360 MHz,
Figure 18. Modulator Output Impedance, LO Input Impedance and Detector
–10
–15
–20
30
25
20
15
10
–5
5
0
0
Figure 19. LO Port Input Return Loss vs. LOIP Frequency
0
P
OUT
S11 OF LOIP
S22 OF MOD OUTPUT
S11 OF DETECTOR INPUT
OFFSET FROM OUTPUT FREQUENCY (dBm/Hz at 20MHz)
–j0.5
Input Impedance (Unterminated) vs. Frequency
j0.5
= −5 dBm, QPSK Carrier, Symbol Rate = 3.84 MSPS
0.5
1.0
LOIP FREQUENCY (GHz)
1.5
50MHz
2250MHz
4500MHz
j1
–j1
2.0
100MHz
2250MHz
2.5
3.0
j2
–j2
3.5
50MHz
4.0
4.5