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400MHz to 2.5GHz, Low-Noise,
SiGe Downconverter Mixers
AC ELECTRICAL CHARACTERISTICS (continued)
(MAX2680/1/2 EV Kit, V CC = SHDN = +3.0V, T A = +25°C, unless otherwise noted. RFIN and IFOUT matched to 50 ? . P LO = -5dBm,
P RFIN = -25dBm.)
PARAMETER
CONDITIONS
MIN
TYP
MAX
UNITS
LO Input VSWR
50 ? source impedance
1.5:1
LO Leakage at IFOUT Port
LO Leakage at RFIN Port
IF/2 Spurious Response
f LO = 1880MHz
f LO = 1880MHz
f RF = 1915MHz, f LO = 1880MHz, f IF = 70MHz (Note 4)
-23
-27
-61
dBm
dBm
dBm
Note 1:
Note 2:
Note 3:
Note 4:
Guaranteed by design and characterization.
Operation outside of this specification is possible, but performance is not characterized and is not guaranteed.
Two input tones at -25dBm per tone.
This spurious response is caused by a higher-order mixing product (2x2). Specified RF frequency is applied and IF output
power is observed at the desired IF frequency (70MHz).
Typical Operating Characteristics
(Typical Operating Circuit, V CC = SHDN = +3.0V, P RFIN = -25dBm, P LO = -5dBm, T A = +25°C, unless otherwise noted.)
7
MAX2680
SUPPLY CURRENT vs. SUPPLY VOLTAGE
10
MAX2681
SUPPLY CURRENT vs. SUPPLY VOLTAGE
18
MAX2682
SUPPLY CURRENT vs. SUPPLY VOLTAGE
SHDN = V CC
SHDN = V CC
T A = +85 ° C
17
T A = +85 ° C
SHDN = V CC
6
5
T A = +85°C
T A = +25°C
9
8
16
15
14
T A = +25 ° C
13
T A = +25 ° C
T A = -40°C
4
T A = -40°C
7
T A = -40 ° C
12
11
3
6
10
9
2
2.5
3.0
3.5
4.0
4.5
5.0
5.5
5
2.5
3.0
3.5
4.0
4.5
5.0
5.5
8
2.5
3.0
3.5
4.0
4.5
5.0
5.5
SUPPLY VOLTAGE (V)
SUPPLY VOLTAGE (V)
SUPPLY VOLTAGE (V)
4
_______________________________________________________________________________________
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