
400MHz to 2.5GHz Upconverter Mixers
Typical Operating Characteristics (continued)
(V CC = SHDN = +3.0V, Typical Operating Circuits , P LO = -5dBm (MAX2660/MAX2661/MAX2663), P LO = -10dBm (MAX2671/MAX2673),
P IFIN = -30dBm, T A = +25°C, unless otherwise noted.)
MAX2660
MAX2661
CONVERSION GAIN AND OUTPUT
POWER vs. IF INPUT POWER
MAX2661
SUPPLY CURRENT vs. SUPPLY VOLTAGE
SHUTDOWN SUPPLY CURRENT
vs. SUPPLY VOLTAGE
10
CONVERSION GAIN
0 f RF = 900MHz
f RF = 1900MHz f RF = 2450MHz
-10
f RF = 900MHz
10.0
9.5
9.0
8.5
T A = +85 °C
T A = +25 °C
10
9
8
7
6
SHDN = GND
-20 f RF = 1900MHz
-30
-40
OUTPUT POWER
f RF = 2450MHz
f RF f LO f IF
900MHz 970MHz 70MHz
1900MHz 1830MHz 70MHz
2450MHz 2210MHz 240MHz
8.0
7.5
7.0
6.5
T A = -40°C
5
4
3
2
1
T A = +85 °C
T A = +25 °C
T A = -40°C
-50
6.0
0
-50
-40
-30
-20
-10
0
2.5
3.0
3.5
4.0
4.5
5.0
5.5
2.5
3.0
3.5
4.0
4.5
5.0
5.5
IF INPUT POWER (dBm)
MAX2661
CONVERSION GAIN vs. RF FREQUENCY
SUPPLY VOLTAGE (V)
MAX2661
CONVERSION GAIN vs. IF FREQUENCY
SUPPLY VOLTAGE (V)
MAX2661
CONVERSION GAIN vs. LO POWER
12
10
8
V CC = 5.5V
12
10
f RF = 900MHz
15
10
f RF = 900MHz
f RF = 1900MHz
6
4
V CC = 2.7V
8
6
f RF = 2450MHz
f RF = 1900MHz
5
f RF = 2450MHz
2
0
-2
-4
V CC = 2.7V
RF MATCH
400MHz
900MHz
1900MHz
2450MHz
f RF
f RF = f LO - f IF
f RF = f LO - f IF
f RF = f LO + f IF
f RF = f LO + f IF
f IF
45MHz
70MHz
70MHz
240MHz
4
2
0
f RF f IF
900MHz f IF = f LO - f RF
1900MHz f IF = f RF - f LO
2450MHz f IF = f RF - f LO
0
-5
-10
f RF
900MHz
1900MHz
2450MHz
f LO
970MHz
1830MHz
2210MHz
f IF
70MHz
70MHz
240MHz
0
500
1000
1500
2000
2500
3000
0
50 100 150 200 250 300 350 400 450 500
-25
-20
-15
-10
-5
0
5
10
RF FREQUENCY (MHz)
IF FREQUENCY (MHz)
LO POWER (dBm)
900
-100
2
MAX2661
LO PORT RETURN LOSS vs. FREQUENCY
800
MAX2661
IF PORT IMPEDANCE vs. IF FREQUENCY
MAX2661toc07
0
MAX2661
RF PORT IMPEDANCE vs. RF FREQUENCY
MAX2661toc08
0
700
-50
800
IMAGINARY
-200
-2
-4
-6
-8
-10
-12
-14
600
500
400
300
200
IMAGINARY
-100
-150
-200
-250
-300
700
600
500
400
300
200
-300
-400
-500
-600
-700
-800
-16
100
REAL
-350
100
REAL
-900
-18
250
800
1350
1900
2450
3000
0
0
-400
50 100 150 200 250 300 350 400 450 500
0
0
500
1000
1500
2000
2500
-1000
3000
LO FREQUENCY (MHz)
IF FREQUENCY (MHz)
RF FREQUENCY (MHz)
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