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