Rainbow Electronics MAX2673 - Manual (Page 8)

MAX2660/MAX2661/MAX2663/MAX2671/MAX2673
400MHz to 2.5GHz Upconverter Mixers
8 _______________________________________________________________________________________
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.)
10
12
14
16
22
24
18
20
26
28
30
500 1000 750 1250 1500 1750 2000 2250 2500
MAX2661
LO-to-RF AND RF-TO-LO ISOLATION
vs. LO OR RF FREQUENCY
MAX2661toc09
LO OR RF FREQUENCY (MHz)
ISOLATION (dB)
LO-TO-RF ISOLATION
POWER INTO LO PORT = -5dBm
RF-TO-LO ISOLATION
POWER INTO RF PORT = -25dBm
900MHz
1900MHz
2450MHz 970MHz
1830MHz
2210MHz 70MHz
70MHz
240MHz
f RF
f LO f IF
-35
-5
0
-10
-25
-30
-20
-15
5
10
15
-40 -25 -20 -10 -5 -30 -35 -15 0
MAX2661
CONVERSION GAIN AND OUTPUT
POWER vs. IF INPUT POWER
MAX2661toc10
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
1.0
2.0
1.5
3.0
2.5
3.5
4.0
2.5 3.5 4.0 3.0 4.5 5.0 5.5
MAX2663
SUPPLY CURRENT vs. SUPPLY VOLTAGE
MAX2663toc1
SUPPLY VOLTAGE (V)
SUPPLY CURRENT (mA)
T A = -40°C
T A = +25°C
T A = +85°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
MAX2663
SHUTDOWN SUPPLY CURRENT
vs. SUPPLY VOLTAGE
MAX2663toc02
SUPPLY VOLTAGE (V)
SHUTDOWN SUPPLY CURRENT (
µ
A)
T A = +85°C
T A = +25°C
T A = -40°C
SHDN = GND
-10
-6
-8
0
-2
-4
4
2
6
-25 -15 -20 -10 -5 0 5 10
MAX2663
CONVERSION GAIN vs. LO POWER
MAX2663toc05
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
-10
-6
-8
-2
-4
0
4
2
6
0 1000 500 1500 2000 2500 3000
MAX2663
CONVERSION GAIN vs. RF FREQUENCY
MAX2663toc03
RF FREQUENCY (MHz)
CONVERSION GAIN (dB)
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
V CC = +5.5V
-6
-1
0
-3
-2
-4
-5
1
2
3
4
0 200 100 300 400 500
MAX2663
CONVERSION GAIN vs. IF FREQUENCY
MAX2663toc04
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
-18
-14
-16
-10
-12
-6
-8
-4
0
-2
2
250 700 1150 1600 2050 2500
MAX2663
LO PORT RETURN LOSS vs. LO FREQUENCY
MAX2663toc06
LO FREQUENCY (MHz)
RETURN LOSS (dB)
0
200
100
300
600
700
800
500
400
900
-900
-700
-800
-600
-300
-200
-100
-400
-500
0
0 100 200 300 400 500
MAX2663
IF PORT IMPEDANCE vs. IF FREQUENCY
MAX2663toc07
IF FREQUENCY (MHz)
REAL IMPEDANCE (
Ω
)
IMAGINARY IMPEDANCE (
Ω
) IMAGINARY
REAL