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High-Linearity, 1700MHz to 3000MHz Upconversion/
Downconversion Mixer with LO Buffer/Switch
AC ELECTRICAL CHARACTERISTICS (DOWNCONVERTER OPERATION) (continued)
(MAX2041 Typical Application Circuit , V CC = +4.75V to +5.25V, RF and LO ports are driven from 50 ? sources, P LO = -3dBm to
+3dBm, P RF = 0dBm, f RF = 1700MHz to 3000MHz, f LO = 1900MHz to 3000MHz, f IF = 200MHz, f LO > f RF , T C = -40 ° C to +85 ° C,
unless otherwise noted. Typical values are at V CC = +5V, P RF = 0dBm, P LO = 0dBm, f RF = 1900MHz, f LO = 2100MHz, f IF = 200MHz,
T C = +25 ° C, unless otherwise noted.) (Note 1)
PARAMETER
SYMBOL
CONDITIONS
MIN
TYP
MAX
UNITS
LO Drive
-3
+3
dBm
Spurious Response at IF
LO1 to LO2 Isolation
Maximum LO Leakage at RF Port
Maximum LO Leakage at IF Port
Minimum RF-to-IF Isolation
LO Switching Time
RF Port Return Loss
LO Port Return Loss
IF Port Return Loss
2x2
3x3
2LO - 2RF, P RF = 0dBm
3LO - 3RF, P RF = 0dBm
LO2 selected, 1900MHz < f LO < 2100MHz
LO1 selected, 1900MHz < f LO < 2100MHz
P LO = +3dBm (Note 4)
P LO = +3dBm
50% of LOSEL to IF settled to within 2 °
LO port selected, LO and IF terminated
LO port unselected, LO and IF terminated
LO driven at 0dBm, RF terminated into 50 ?
63
69
49
43
-18.5
-30
35
50
18
16
26
20
dBc
dB
dBm
dBm
dB
ns
dB
dB
dB
AC ELECTRICAL CHARACTERISTICS (UPCONVERTER OPERATION)
(MAX2041 Typical Application Circuit , V CC = +4.75V to +5.25V, P LO = -3dBm to +3dBm, P IF = 0dBm, f RF = 1700MHz to 3000MHz,
f LO = 1900MHz to 3000MHz, f IF = 200MHz, f RF = f LO - f IF , T C = -40 ° C to +85 ° C, unless otherwise noted. Typical values are at V CC =
+5V, P IF = 0dBm, P LO = 0dBm, f RF = 1900MHz, f LO = 2100MHz, f IF = 200MHz, T C = +25 ° C, unless otherwise noted.) (Note 1)
PARAMETER
Input Compression Point
SYMBOL
P 1dB
(Note 2)
CONDITIONS
MIN
TYP
23.3
MAX
UNITS
dBm
Two tones:
f IF1 = 200MHz,
Input Third-Order Intercept Point
IIP3
f IF2 = 201MHz,
P IF = 0dBm/tone,
33.5
dBm
f LO = 1900MHz,
P LO = 0dBm
LO ± 2IF Spur
LO ± 3IF Spur
Output Noise Floor
LO - 2IF
LO + 2IF
LO - 3IF
LO + 3IF
P OUT = 0dBm
67
65
75
72
-160
dBc
dBc
dBm/
Hz
Note 1: All limits include external component losses. Output measurements taken at IF port for downconverter and RF port for
upconverter from the Typical Application Circuit .
Note 2: Compression point characterized. It is advisable not to continuously operate the mixer RF or IF input above +15dBm.
Note 3: Measured with external LO source noise filtered so the noise floor is -174dBm/Hz. This specification reflects the effects of all
SNR degradations in the mixer, including the LO noise as defined in Maxim Application Note 2021 .
Note 4: Refer to the MAX2043 for improved LO leakage of -52dBm typical.
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3
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