Datasheet

MAX2022 High-Dynamic-Range, Direct Up/
Downconversion 1500MHz to 3000MHz
Quadrature Modulator/Demodulator
Maxim Integrated │ 13
www.maximintegrated.com
Typical Operating Characteristics (continued)
(MAX2022 Typical Application Circuit, RF and LO ports tuned for 1500MHz to 2400MHz as noted in Table 1. I/Q outputs are recombined
using network shown in Figure 5. Losses of combining network not included in measurements. V
CC
=5.0V,GND=0V,P
RF
= 0dBm,
P
LO
= 0dBm, f
IF
= 20MHz, f
LO
> f
RF
,intermodulationdeltafrequency=1.2MHz,50ΩLOandRFsystemimpedance,T
C
= +25°C un-
less otherwise noted.)
DEMODULATOR LOW BAND TUNING (VARIABLE LO)
LO PORT RETURN LOSS
vs. LO FREQUENCY
MAX2022 toc56
LO FREQUENCY (MHz)
LO PORT RETURN LOSS (dB)
25002000
30
20
10
0
40
1500 3000
P
LO
= +3dBm
P
LO
= -3dBm
P
LO
= 0dBm
RF PORT RETURN LOSS
vs. RF FREQUENCY
MAX2022 toc55
RF FREQUENCY (MHz)
RF PORT RETURN LOSS (dB)
25002000
25
20
15
10
5
0
30
1500 3000
V
CC
= 4.75V, 5.0V, 5.25V
RF PORT RETURN LOSS
vs. RF FREQUENCY
MAX2022 toc54
RF FREQUENCY (MHz)
RF PORT RETURN LOSS (dB)
25002000
25
20
15
10
5
0
30
1500 3000
P
LO
= -3dBm, 0dBm, +3dBm
IMAGE REJECTION
vs. LO FREQUENCY
MAX2022 toc53
LO FREQUENCY (MHz)
IMAGE REJECTION (dB)
21001800
20
30
40
50
10
1500 2400
INPUT IP2 vs. RF FREQUENCY
MAX2022 toc52
RF FREQUENCY (MHz)
INPUT IP2 (dBm)
20801780
50
60
70
80
40
1480 2380
P
RF
= 0dBm/TONE
T
C
= +85°C
T
C
= -40°C
T
C
= +25°C
LO PORT RETURN LOSS
vs. LO FREQUENCY
MAX2022 toc57
LO FREQUENCY (MHz)
LO PORT RETURN LOSS (dB)
25002000
30
20
10
0
40
1500 3000
V
CC
= 4.75V, 5.0V, 5.25V