MAX2660/MAX2661/MAX2663/MAX2671/MAX2673
400MHz to 2.5GHz Upconverter Mixers
_______________________________________________________________________________________ 9
0
200
100
500
400
300
600
700
800
900
0 500 1000 1500 2000 2500
MAX2663
RF PORT IMPEDANCE vs. RF FREQUENCY
MAX2663toc08
RF FREQUENCY (MHz)
REAL IMPEDANCE (Ω)
IMAGINARY
REAL
-1000
-800
-900
-500
-600
-700
-400
-300
-200
-100
IMAGINARY IMPEDANCE (Ω)
0
5
15
10
20
25
30
35
500 1000 1500 2000 2500
MAX2663
LO-TO-RF AND RF-TO-LO ISOLATION
vs. LO AND RF FREQUENCY
MAX2663toc09
LO AND RF FREQUENCY (MHz)
ISOLATION (dB)
RF-TO-LO ISOLATION
POWER INTO RF PORT = -25dBm
LO-TO-RF ISOLATION
POWER INTO LO PORT = -5dBm
900MHz
1900MHz
2450MHz
970MHz
1830MHz
2210MHz
70MHz
70MHz
240MHz
f
RF
f
LO
f
IF
-50
-20
-30
-40
-10
0
10
-25
-35
-45
-15
-5
5
-50 -30-40 -20 -10 0-45 -25-35 -15 -5
MAX2663
CONVERSION GAIN AND OUTPUT
POWER vs. IF INPUT POWER
MAX2663toc10
IF INPUT POWER (dBm)
OUTPUT POWER (dBm) AND CONVERSION GAIN (dB)
900MHz
1900MHz
2450MHz
f
RF
970MHz
1830MHz
2210MHz
f
LO
70MHz
70MHz
240MHz
f
IF
f
RF
= 900MHz
f
RF
= 1900MHz
f
RF
= 2450MHz
f
RF
= 900MHz
f
RF
= 1900MHz
f
RF
= 2450MHz
CONVERSION GAIN
OUTPUT
POWER
8
10
9
12
11
13
14
2.5 3.5 4.03.0 4.5 5.0 5.5
MAX2671
SUPPLY CURRENT vs. SUPPLY VOLTAGE
MAX2671toc01
SUPPLY VOLTAGE (V)
SUPPLY CURRENT (mA)
T
A
= -40°C
T
A
= +25°C
T
A
= +85°C
0
6
4
2
8
10
12
0 20015050 100 250 300 350 400 450 500
MAX2671
CONVERSION GAIN vs. IF FREQUENCY
MAX2671toc04
IF FREQUENCY (MHz)
CONVERSION GAIN (dB)
900MHz
1900MHz
2450MHz
f
RF
f
IF
= f
LO
- f
RF
f
IF
= f
RF
- f
LO
f
IF
= f
RF
- f
LO
f
IF
f
RF
= 2450MHz
f
RF
= 1900MHz
f
RF
= 900MHz
0
3
2
1
4
5
6
7
8
9
10
2.5 3.53.0 4.0 4.5 5.0 5.5
MAX2671
SHUTDOWN SUPPLY CURRENT
vs. SUPPLY VOLTAGE
MAX2671toc02
SUPPLY VOLTAGE (V)
SHUTDOWN SUPPLY CURRENT (µA)
T
A
= +25°C
T
A
= +85°C
SHDN = GND
T
A
= -40°C
-4
-2
4
2
0
6
8
10
12
0
1000500 1500 2000 2500 3000
MAX2671
CONVERSION GAIN vs. RF FREQUENCY
MAX2671toc03
RF FREQUENCY (MHz)
CONVERSION GAIN (dB)
400MHz
900MHz
1900MHz
2450MHz
RF MATCH
45MHz
70MHz
70MHz
240MHz
f
IF
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
RF
V
CC
= +5.5V
V
CC
= +2.7V
-8
-6
-4
-2
4
0
2
8
10
6
12
-35 -25
-20 -15
-30 -10 -5 0 5 10
MAX2671
CONVERSION GAIN vs. LO POWER
MAX2671toc05
LO INPUT POWER (dBm)
CONVERSION GAIN (dB)
f
RF
= 2450MHz
f
RF
= 900MHz
f
RF
= 1900MHz
900MHz
1900MHz
2450MHz
970MHz
1830MHz
2210MHz
70MHz
70MHz
240MHz
f
RF
f
LO
f
IF
-18
-14
-16
-10
-12
-6
-8
-4
0
-2
2
250 800 1350 1900 2450 3000
MAX2671
LO PORT RETURN LOSS vs. LO FREQUENCY
MAX2671toc06
LO FREQUENCY (MHz)
RETURN LOSS (dB)
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.)