3.5GHz Downconverter Mixers
with Selectable LO Doubler
AC ELECTRICAL CHARACTERISTICS—MAX2683 (continued)
(MAX2683/MAX2684 EV kit, V
= +5V, R
= 1.2kΩ, ENX2 = GND, f = 3.6GHz, P = -20dBm, f
= 1650MHz, P = -5dBm,
CC
BIAS
RF
RF
LOX2 LO
all input/output ports terminated in 50Ω, IFOUT+ and IFOUT- matched to single-ended 50Ω load, T = +25°C, unless otherwise noted.)
A
PARAMETER
CONDITIONS
MIN
TYP
-39
-39
-64
MAX
UNITS
f
= 1 × f
= 2 × f
= 3 × f
IFOUT
LO
LO
LO
LOX2 Leakage at IFOUT+,
IFOUT-
f
dBm
ENX2 = GND
ENX2 = V , f
IFOUT
f
IFOUT
LOX1 Leakage at IFOUT+,
IFOUT-
= 1 × f f = 3.3GHz
LO, LOX1
-39
-20
dBm
dB
CC IFOUT
LOX1, LOX2 Input Return Loss
(Note 9)
AC ELECTRICAL CHARACTERISTICS—MAX2684
(MAX2683/MAX2684 EV kit, V
= +5V, R
= 1.2kΩ, ENX2 = GND, f = 3.6GHz, P = -20dBm, f
= 1350MHz, P = -5dBm,
CC
BIAS
RF
RF
LOX2 LO
all input/output ports terminated in 50Ω, IFOUT+ and IFOUT- matched to single-ended 50Ω load, T = +25°C, unless otherwise noted.)
A
PARAMETER
RF Frequency Range
IF Frequency Range
LOX2 Frequency Range
LOX1 Frequency Range
Conversion Gain
CONDITIONS
MIN
3.4
800
1.2
2.4
0.8
TYP
MAX
3.8
UNITS
GHz
MHz
GHz
GHz
dB
(Notes 2, 3)
(Notes 2, 3)
1000
1.45
2.9
LOX2 = GND (Notes 2, 3)
LOX2 = V (Notes 2, 3)
CC
(Notes 1, 4)
+1
0.5
0
+2.3
Gain Variation Over
Temperature and Frequency
T
A
= -40°C to +85°C
1.2
dB
Input 1dB Compression Point
dBm
dBm
Input Third-Order Intercept Point (Note 10)
+9.5
Input Second-Order Intercept
(Note 11)
Point
+37
dBm
Noise Figure
(Note 7)
(Note 8)
13.6
-18
-47
-43
-49
-45
-37
-20
-41
dB
dB
RFIN Input Return Loss
f
f
= 1 × f
= 2 × f
= 3 × f
= 2.7GHz
= 1 × f
LOX2
RFIN
LOX2
LOX2
LOX2
LOX2 Leakage at RFIN
LOX1 Leakage at RFIN
dBm
dBm
dBm
ENX2 = GND
RFIN
f
RFIN
ENX2 = V , f
= 1 × f
f
CC RFIN
LOX1, LOX1
f
f
RFIN
LOX2 Leakage at IFOUT+,
IFOUT-
ENX2 = GND
= 2 × f
RFIN
LOX2
f
= 3 × f
RFIN
LOX2
LOX1 Leakage at IFOUT+,
IFOUT-
ENX2 = V , f
= 1 × f
f
= 2.7GHz
-15
-20
dBm
dB
CC IFOUT
LOX1, LOX1
LOX1, LOX2 Input Return Loss
(Note 9)
Note 1: Devices are production tested at T = +25°C.
A
Note 2: Minimum and maximum limits are guaranteed by design and characterization, but are not production tested.
Note 3: The device has been characterized over the specified frequency range. Operation outside of this range is possible but not
guaranteed.
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