Datasheet
MAX2023
High-Dynamic-Range, Direct Up-/Downconversion
1500MHz to 2500MHz Quadrature Mod/Demod
7
MODULATOR OUTPUT IP3
vs. LO FREQUENCY
LO FREQUENCY (GHz)
OUTPUT IP3 (dBm)
MAX2023 toc07
1.5 1.6 1.7 1.8 1.9 2.0 2.1 2.2 2.3
10
12
14
16
18
20
22
24
26
28
30
P
LO
= -3dBm
P
LO
= +3dBm
P
LO
= 0dBm
f
1
= 1.8MHz
f
2
= 1.9MHz
MODULATOR OUTPUT IP3
vs. I/Q COMMON-MODE VOLTAGE
I/Q COMMON-MODE VOLTAGE (V)
OUTPUT IP3 (dBm)
MAX2023 toc08
-3.5 -2.5 -1.5 -0.5 0.5 1.5 2.5 3.5
22.0
22.5
23.0
23.5
24.0
24.5
25.0
25.5
26.0
f
1
= 1.8MHz
f
2
= 1.9MHz
MODULATOR OUTPUT IP2
vs. LO FREQUENCY
LO FREQUENCY (GHz)
OUTPUT IP2 (dBm)
MAX2023 toc09
1.5 1.6 1.7 1.8 1.9 2.0 2.1 2.2 2.3
50
55
60
65
70
75
80
T
C
= +85°C
T
C
= +25°C
T
C
= -40°C
f
1
= 1.8MHz
f
2
= 1.9MHz
Typical Operating Characteristics (continued)
(MAX2023
Typical Application Circuit
, V
CC
= 4.75V to 5.25V, GND = 0V, I/Q differential inputs driven from a 100Ω DC-coupled source
(modulator), V
BBI
= V
BBQ
= 2.6V
P-P
differential (modulator), P
RF
= +6dBm (demodulator), I/Q differential output drives 50Ω differential load
(demodulator), 0V common-mode input/output, P
LO
= 0dBm, 1500MHz ≤ f
LO
≤ 2300MHz, 50Ω LO and RF system impedance, R1 = 432Ω,
R2 = 562Ω, R3 = 301Ω, T
C
= -40°C to +85°C. Typical values are at V
CC
= 5V, f
LO
= 1850MHz, T
C
= +25°C, unless otherwise noted.)
MODULATOR OUTPUT IP2
vs. LO FREQUENCY
LO FREQUENCY (GHz)
OUTPUT IP2 (dBm)
MAX2023 toc10
1.5 1.6 1.7 1.8 1.9 2.0 2.1 2.2 2.3
50
55
60
65
70
75
80
V
CC
= 5V
V
CC
= 5.25V
V
CC
= 4.75V
f
1
= 1.8MHz
f
2
= 1.9MHz
MODULATOR OUTPUT IP2
vs. LO FREQUENCY
LO FREQUENCY (GHz)
OUTPUT IP2 (dBm)
MAX2023 toc11
1.5 1.6 1.7 1.8 1.9 2.0 2.1 2.2 2.3
50
55
60
65
70
75
80
P
LO
= -3dBm
P
LO
= 0dBm
P
LO
= +3dBm
f
1
= 1.8MHz
f
2
= 1.9MHz
MODULATOR OUTPUT IP2
vs. I/Q COMMON-MODE VOLTAGE
I/Q COMMON-MODE VOLTAGE (V)
OUTPUT IP2 (dBm)
MAX2023 toc12
-3.5 -2.5 -1.5 -0.5 0.5 1.5 2.5 3.5
60
61
62
63
64
65
66
67
68
f
1
= 1.8MHz
f
2
= 1.9MHz
MODULATOR OUTPUT POWER
vs. INPUT POWER
INPUT POWER (dBm)
OUTPUT POWER (dBm)
MAX2023 toc13
10 12 14 16 18 20 22 24 26 28 30
0
2
4
6
8
10
12
14
16
18
20
V
CC
= 4.75V, 5V, 5.25V
MODULATOR OUTPUT POWER
vs. INPUT POWER
INPUT POWER (dBm)
OUTPUT POWER (dBm)
MAX2023 toc14
10 12 14 16 18 20 22 24 26 28 30
0
2
4
6
8
10
12
14
16
18
20
P
LO
= -3dBm
P
LO
= +3dBm
P
LO
= 0dBm
MODULATOR OUTPUT POWER
vs. LO FREQUENCY
LO FREQUENCY (GHz)
OUTPUT POWER (dBm)
MAX2023 toc15
1.5 1.6 1.7 1.8 1.9 2.0 2.1 2.2 2.3
2
3
4
5
6
7
8
T
C
= +85°C
T
C
= +25°C
T
C
= -40°C