Datasheet
MAX2023
High-Dynamic-Range, Direct Up-/Downconversion
1500MHz to 2500MHz Quadrature Mod/Demod
4
PARAMETER CONDITIONS MIN TYP MAX UNITS
RF INPUT
Conversion Loss f
BB
= 25MHz 9.5 dB
Noise Figure 9.6 dB
Noise Figure Underblocking
Conditions
f
BLOCKER
= 1950MHz, P
BLOCKER
= +11dBm,
f
RF
= 1850MHz (Note 10)
20.3 dB
Input Third-Order Intercept
Point
f
RF1
= 1875MHz, f
RF2
= 1876MHz, f
LO
= 1850MHz,
P
RF
= P
LO
= 0dBm, f
IM3
= 24MHz
38 dBm
Input Second-Order Intercept
Point
f
RF1
= 1875MHz, f
RF2
= 1876MHz, f
LO
= 1850MHz,
P
RF
= P
LO
= 0dBm, f
IM2
= 51MHz
59 dBm
Input 1dB Compression Point f
BB
= 25MHz 29.7 dBm
I/Q Gain Mismatch f
BB
= 1MHz 0.025 dB
I/Q Phase Mismatch f
BB
= 1MHz 0.56 Degrees
AC ELECTRICAL CHARACTERISTICS (Demodulator, LO = 1850MHz)
(MAX2023
Typical Application Circuit
when operated as a demodulator, V
CC
= 4.75V to 5.25V, GND = 0V, V
DC
for BBI+, BBI-, BBQ+,
BBQ- = 0V, 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, P
RF
= 0dBm, f
BB
= 1MHz, P
LO
= 0dBm, f
LO
= 1850MHz, T
C
= +25°C, unless otherwise noted.)
PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS
Conversion Loss L
C
10.9 dB
Noise Figure NF
SSB
11 dB
Input Third-Order Intercept Point IIP3
f
RF1
= 2135MHz,
f
RF2
= 2140MHz,
P
RF1
= P
RF2
= 0dBm,
f
IF1
= 215MHz,
f
IF2
= 210MHz
31.5 dBm
Input Second-Order Intercept
Point
IIP2
f
RF1
= 2135MHz,
f
RF2
= 2140MHz,
P
RF1
= P
RF2
= 0dBm,
f
IF1
= 215MHz,
f
IF2
= 210MHz,
f
IM2nd
= 425MHz
65 dBm
LO Leakage at RF Port -50 dBm
LO Leakage at I/Q Ports -38 dBm
Gain Compression P
RF
= 21dBm 0.17 dB
I/Q Gain Mismatch 0.025 dB
I/Q Phase Mismatch 0.6 Degrees
RF Port Return Loss C9 = 2pF 13 dB
AC ELECTRICAL CHARACTERISTICS (Demodulator, LO = 2350MHz)
(MAX2023
Typical Application Circuit
when operated as a demodulator. I/Q outputs are recombined using network shown in
Figure 5. Losses of combining network not included in measurements. RF and LO ports are driven from 50Ω sources. Typical values
are for T
C
= +25°C, V
CC
= 5V, I/Q DC returns = 160Ω resistors to GND, P
RF
= 0dBm, P
LO
= 0dBm, f
RF
= 2140MHz, f
LO
= 2350MHz,
f
IF
= 210MHz, unless otherwise noted.)