MAX2683/MAX2684
3.5GHz Downconverter Mixers
with Selectable LO Doubler
_______________________________________________________________________________________ 9
-5
-2
-3
-4
-1
0
1
2
3
4
5
2.5 3.53.0 4.0 4.5 5.0 5.5
CONVERSION GAIN vs. SUPPLY VOLTAGE
(R
BIAS
= 820Ω)
MAX2683 toc37
SUPPLY VOLTAGE (V)
CONVERSION GAIN (dB)
T
A
= -40°C
T
A
= +25°C
T
A
= +85°C
-3
-1
-2
0
1
2
3
2.5 3.53.0 4.0 4.5 5.0 5.5
CONVERSION GAIN vs SUPPLY VOLTAGE
(R
BIAS
= 1.2kΩ)
MAX2683 toc38
SUPPLY VOLTAGE (V)
CONVERSION GAIN (dB)
T
A
= +85°C
T
A
= +25°C
T
A
= -40°C
ENX2 = V
CC
ENX2 = GND
-5
-2
-3
-4
-1
0
1
2
3
4
5
2.5 3.53.0 4.0 4.5 5.0 5.5
CONVERSION GAIN vs. SUPPLY VOLTAGE
(R
BIAS
= 2kΩ)
MAX2683 toc39
SUPPLY VOLTAGE (V)
CONVERSION GAIN (dB)
T
A
= +85°C
T
A
= +25°C
T
A
= -40°C
0
3
9
6
12
15
2.5 3.53.0 4.0 4.5 5.0 5.5
INPUT IP3 vs. SUPPLY VOLTAGE
(R
BIAS
= 820Ω)
MAX2683 toc40
SUPPLY VOLTAGE (V)
INPUT IP3 (dBm)
T
A
= -40°C
T
A
= +85°C
T
A
= +25°C
5
8
7
6
9
10
11
12
13
14
15
2.5 3.53.0 4.0 4.5 5.0 5.5
INPUT IP3 vs. SUPPLY VOLTAGE
(R
BIAS
= 1.2kΩ)
MAX2683 toc41
SUPPLY VOLTAGE (V)
INPUT IP3 (dBm)
T
A
= +85°C
T
A
= -40°C
T
A
= +25°C
0
3
2
1
4
5
6
7
8
9
10
2.5 3.53.0 4.0 4.5 5.0 5.5
INPUT IP3 vs. SUPPLY VOLTAGE
(R
BIAS
= 2kΩ)
MAX2683 toc42
SUPPLY VOLTAGE (V)
INPUT IP3 (dBm)
T
A
= -+85°C
T
A
= -40°CT
A
= +25°C
MAX2684
Typical Operating Characteristics (continued)
(MAX2683/MAX2684 EV kit, V
CC
= +5V, R
BIAS
= 1.2kΩ, ENX2 = GND, f
RF
= 3.6GHz, P
RF
= -20dBm, f
LOX2
= 1650MHz for MAX2683 or
f
LOX2
= 1350MHz for MAX2684, P
LO
= -5dBm, all input/output ports terminated in 50Ω, IFOUT+ and IFOUT- matched to single-ended
50Ω load, T
A
= +25°C, unless otherwise noted.)
-10
-6
2
-2
6
10
2.5 3.53.0 4.0 4.5 5.0 5.5
INPUT P1dB vs. SUPPLY VOLTAGE
(R
BIAS
= 820Ω)
MAX2683 toc43
SUPPLY VOLTAGE (V)
INPUT P1dB (dBm)
T
A
= +85°C
T
A
= -40°C
T
A
= +25°C
-5
-2
-3
-4
-1
0
1
2
3
4
5
2.5 3.53.0 4.0 4.5 5.0 5.5
INPUT P1dB vs. SUPPLY VOLTAGE
(R
BIAS
= 1.2kΩ)
MAX2683 toc44
SUPPLY VOLTAGE (V)
INPUT P1dB (dBm)
T
A
= +85°C
T
A
= -40°C
T
A
= +25°C
-10
-7
-8
-9
-6
-5
-4
-3
-2
-1
0
2.5 3.53.0 4.0 4.5 5.0 5.5
INPUT P1dB vs. SUPPLY VOLTAGE
(R
BIAS
= 2kΩ)
MAX2683 toc45
SUPPLY VOLTAGE (V)
INPUT P1dB (dBm)
T
A
= +85°C
T
A
= +25°C
T
A
= -40°C
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