Rainbow Electronics MAX2673 - Manual (Page 9)

MAX2660/MAX2661/MAX2663/MAX2671/MAX2673
400MHz to 2.5GHz Upconverter Mixers
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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 4.0 3.0 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
0 200 150 50 100 250 300 350 400 450 500
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 3.5 3.0 4.0 4.5 5.0 5.5
MAX2671
SHUTDOWN SUPPLY CURRENT
vs. SUPPLY VOLTAGE
MAX2671toc02
SUPPLY VOLTAGE (V)
SHUTDOWN SUPPLY CURRENT (
µ
A)
T A = +25°C
T A = +85°C
SHDN = GND
T A = -40°C
-4
-2
4
2
0
6
8
10
12
0 1000 500 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.)