Rainbow Electronics MAX2673 - Manual (Page 10)

MAX2660/MAX2661/MAX2663/MAX2671/MAX2673
400MHz to 2.5GHz Upconverter Mixers
10 ______________________________________________________________________________________
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.)
0
200
100
300
600
700
800
500
400
-400
-300
-350
-250
-100
-50
-150
-200
0
0 100 200 300 400 500
MAX2671
IF PORT IMPEDANCE vs. IF FREQUENCY
MAX2671toc07
IF FREQUENCY (MHz)
REAL IMPEDANCE (
Ω
)
IMAGINARY IMPEDANCE (
Ω
)
IMAGINARY
REAL
0
200
100
500
400
300
600
700
0 500 1000 1500 2000 2500 3000
MAX2671
RF PORT IMPEDANCE vs. RF FREQUENCY
MAX2671toc08
RF FREQUENCY (MHz)
REAL IMPEDANCE (
Ω
)
IMAGINARY
REAL
-800
-500
-600
-700
-400
-300
-200
-100
IMAGINARY IMPEDANCE (
Ω
)
18
20
24
22
26
28
30
32
34
500 1000 1500 2000 2500
MAX2671
LO-TO-RF AND RF-TO-LO ISOLATION
vs. LO or RF FREQUENCY
MAX2671toc09
LO AND RF FREQUENCY (MHz)
ISOLATION (dB)
LO-TO-RF ISOLATION
POWER INTO LO PORT = -10dBm
RF-TO-LO ISOLATION
POWER INTO RF PORT = -25dBm
-50
-10
-20
-40
-30
0
10
20
-50 -25 -20 -10 -5 -30 -40 -45 -35 -15 0
MAX2671
CONVERSION GAIN AND OUTPUT
POWER vs. IF INPUT POWER
MAX2671toc10
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 = 1900MHz
f RF = 900MHz f RF = 2450MHz
f RF = 900MHz
f RF = 1900MHz
f RF = 2450MHz
CONVERSION GAIN
OUTPUT POWER
-2
2
0
6
4
8
12
10
14
0 1000 500 1500 2000 2500 3000
MAX2673
CONVERSION GAIN vs. RF FREQUENCY
MAX2673toc03
RF FREQUENCY (MHz)
CONVERSION GAIN (dB)
V CC = +5.5V
V CC = +2.7V
V CC = +2.7V
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
16
17
18
19
20
21
22
23
24
2.5 3.5 3.0 4.0 4.5 5.0 5.5
MAX2673
SUPPLY CURRENT vs. SUPPLY VOLTAGE
MAX2673toc01
SUPPLY VOLTAGE (V)
SUPPLY CURRENT (mA)
T
A
= +85°C
T A = +25°C
T A = -40°C
0
3
2
1
4
5
6
7
8
9
10
2.5 3.5 3.0 4.0 4.5 5.0 5.5
MAX2673
SHUTDOWN SUPPLY CURRENT
vs. SUPPLY VOLTAGE
MAX2673toc02
SUPPLY VOLTAGE (V)
SHUTDOWN SUPPLY CURRENT (
µ
A)
T A = +85°C
T A = -40°C
SHDN = GND
T A = +25°C
-2
4
2
0
6
8
10
12
14
0 200 150 50 100 250 300 350 400 450 500
MAX2673
CONVERSION GAIN vs. IF FREQUENCY
MAX2673toc04
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
= 900MHz
f RF = 1900MHz
f RF = 2450MHz
0
2
4
10
6
8
12
14
-25 -15 -20 -10 -5 0 5 10
MAX2673
CONVERSION GAIN vs. LO POWER
MAX2673toc05
LO 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